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Answers to your questions from our Tech Experts


Here’s a taste of some of the Technical Expert questions and answers to help you with your own projects. Always make sure you read the product label and data sheet prior to application. If in doubt about any aspect of your project, please ask our Technical Expert for help or come in and see our staff at your local Resene ColorShop or Reseller.

 
 
 

 

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Q. I would like advice on a suitable paint finish for a wall surface behind a gas stove in a kitchen.

A. Glass or tile splashbacks are the best option for this situation. There are few paints that will have sufficient heat resistance to be used behind a cooking top, gas or electric. It does depend upon the distance between the back elements and the wall but generally it’s best to opt for the glass or tiled splashback. You can get the glass back painted in your favourite Resene colour.

May 2014

Q. I am planning to paint a wall mural for a tramping hut in the Waitakere ranges. It will be on a bare wood board, approx. 1.5 x 2m, inside the hut (but still exposed to damp etc due to the bush conditions). Wondering about prep options, paint for the design, and also a finish to protect the painting.

A. Prime with Resene Quick Dry waterborne primer undercoat then apply two coats of Resene Lumbersider with added MoulDefender mould protection (this additive is added at point of sale to the tinted colour). You can request the MoulDefender is added to the paint at selected Resene ColorShops.

May 2014

Q. I need to paint a laminate windowsill - how do I prime it and what kind of paint should I be using?

A. Ensure the sill is degreased and then prime with Resene Waterborne Smooth Surface Sealer, leave the sealer to cure for 48 hours then undercoat with Resene Quick Dry waterborne primer undercoat followed by two coats of Resene Lustacryl waterborne enamel. The system will take up to five days to achieve reasonable adhesion and during this time water should not be left to form on the freshly painted surface.

May 2014

Q. Our roof painter wants to use Resene Summit Roof on the roof, barge boards and fascia. Will that paint be ok on the timber fascia?

A. Resene Summit Roof can be used over a suitable primer on most substrates. The product has been formulated primarily for roofs. Generally for timber, Resene Lumbersider is more commonly used.

May 2014

Q. I have used silicone sealant on battens between sheets of exterior fibrolite. Does Resene have any primer or paint or other product that will adhere to silicone?

A. There are paintable and non-paintable silicone sealants. If you have the non-paintable one then there is no primer we are aware of that can be used to prime these sealants.

May 2014

Q. We have a bathroom with Seratone walls and wooden sills and surrounds around the bottom. They badly need repainting. Is there special paint or undercoat I should buy for a wet area?

A. We do have a paint system for painting laminates but we do not recommend the system for internal shower walls as we cannot guarantee adhesion.

May 2014

Q. I was wondering what paint I would need and what steps I would need to take to prepare and repaint a powdercoated aluminium pool fence? Is this possible? Is it possible to achieve a solid paint job that won't peel off? It is the posts I want to paint black (while they remain in the ground) as I am replacing the fencing that is screwed between them.

A. Scrub down the powder coated surfaces with Resene Paint Prep and Housewash, rinse clean and allow to dry. This should give a surface that is chalk free (no white material comes off when the cleaned surface is rubbed). Prime with Resene Vinyl Etch Black and then apply two coats of any Resene Uracryl 400 Series two pack tinted to black.

May 2014

Q. Looking to paint my concrete garage floor and need to know whether to use paint or epoxy.

A. We recommend Resene Aquapoxy for flooring for the topcoat. Prepare the concrete floor, seal with Resene ArmourBond and then apply three coats of Resene Aquapoxy for flooring.

May 2014

Q. Resene Lusta-Glo semi-gloss enamel is being used to paint the interior of the house I rent. I was not told in advance of the safety considerations and now as I come home there is quite an odour. I also see a bottle of mineral turps that the painter is no doubt using. I need to know how long after painting is it considered safe to reside in a home painted with this paint assuming recommended ventilation practice?

A. Ventilation is the key: with good ventilation and warm temperatures the solvents used in the product should be released from the applied paint film within 48 hours but then they need to be removed from the room space and this is where the ventilation requirement comes into play. There may be a residual odour but this is not associated with solvents but is a characteristic of alkyd based paints.

May 2014

Q. I need a paint suitable for a newly made concrete torso. I am a mosaic artist and need a dark blue paint/stain - looking at your site I may need to use Resene Tennis Court Paint to get anything similar to the colour I want, but I need to know what sort of quantities they are sold in or any other suitable options as torsos are approx small to life-sized - so won’t need tennis court quantities.

A. Usually we require concrete to cure for at least a month before painting. However you can seal fresh concrete with Resene LimeLock which then reduces the time to application of the topcoats. Once sealed you can use any Resene exterior acrylic paint, two coats are required. Suggest the easiest way to arrive at a colour is to visit your local Resene ColorShop and look over the in store colour library. The store staff can also advise you of the cost of the paint and also available can sizes.

May 2014

Q. I painted our roof a year ago and have noticed over the past few months that the paint is now blistering particularly where the purlins are. This blistering is in sections across the roof and in some places there is evidence of white corrosion. I have recently purchased Resene Galvo One to prime these areas, however removing the blistered paint is proving to be difficult. The electric drill with wire brush attachment is very slow, hand wire brush doesn't work at all.

A. I have used a 3M Rust and Paint Removal Disc (drill attached) for the purpose of preparing corroded areas of roofing. The disc is more efficient at removing loose paint and underlying corrosion deposits than a power wire brush.

May 2014

Q. I am repainting an older house that has been painted in oil based paint. I need to know what paint I can use and whether I need to undercoat or not.

A. Assuming the existing paint system is not showing flaking then the standard prep is to scrub down with Resene Paint Prep and Housewash according to directions, then sand the old enamel to provide a key for the new paint. I always recommend undercoating with Resene Quick Dry waterborne primer undercoat and then apply two coats of any Resene exterior acrylic finish.

The main issue with repainting older homes with many years accumulation of paint is the possibility of delamination of an underlying paint layer after the new paint system is applied. This is common when older villas which have pale colours are then painted with dark colours and the heat associated with the new colour causes paint delamination. Resene CoolColours™ can reduce the risk but there is still a risk that the old paint system will let go.

May 2014

Q. We manage a holiday home constructed in 1930s from concrete using some sand from the beach. Interior plastered walls have been painted with a limewash but in wet weather some efflorescence resulting in patches of white crystalline is coming through. The owner has requested we now paint with a flat acrylic. Do you foresee any problems and would the construction method require a breathable paint finish?

A. The appearance of a white crystalline material on the inside of the walls is efflorescence which arises due to the passage of water through the wall taking dissolved salts to the interior wall surface. To correct this the exterior of the wall needs to be made weathertight. This can be done by applying three coats of Resene X-200 to the wall sealed with Resene Sureseal.

May 2014

Q. Do you have a paint in your range that is suitable to paint over ceramic floor tiles in a shower?

A. We do have a paint system for glazed tile; the degree and type of foot traffic will determine how the system performs.

The system is as follows: Ensure the tiles are free from oil/grease/dirt etc and then prime with Resene Waterborne Smooth Surface Sealer (this product is water thinned and should be applied as a thin coat as a high film thickness is not required). Allow to cure for 48 hours with good ventilation then undercoat with Resene Quick Dry waterborne primer undercoat and finish with 2 coats for Resene Lustacryl waterborne enamel. The system will take up to 5 days to develop adhesion and will continue to harden over 30 days, but should be able to cope with foot traffic (socks, no shoes or boots) after 48 hours.

I would not use the system for a shower floor, the bathroom floor is less of an issue. However it’s ideal for dry areas.

May 2014

Q. Is there a paint or sealer suitable for weathered butynol?

A. Scrub down using Resene Paint Prep and Housewash, rinse clean with fresh water and allow to dry then check for chalkiness of the butynol by rubbing and see if there is a white material coming off the surface. Assuming there is no residual chalk prime with Resene Membrane Roofing Primer and follow this with two coats of Resene Lumbersider. Suggest you try and avoid using dark colours for the topcoat and if available use the CoolColour™ version of the colour.

May 2014

Q. I am building a new deck with pine decking and plan to use Resene Woodsman wood oil stain and was going to prestain the timber for assembly. Then second coat about Christmas. Is this ok with this product or do I need to wait until summer for the first coat?

A. You can apply one coat now and the other at a later date, but there will be weathering of the stain and surface loss of the stain. Wash down with Resene Timber and Deck Wash before application of additional stain.

May 2014

Q. A rental property is coated with nicotine from the occupant being a smoker and the ceilings and walls are coated. What's the best solution for preparing the walls for repainting?

A. Wash all areas down with Resene Interior Paint Cleaner then apply a full coat of Resene Sureseal. You can then apply any Resene interior wall or ceiling paints over the sealed areas.

May 2014

Q. I need to repaint a room with plastered walls that are painted with a water based acrylic and have a lot of permanent marker on the walls. What is the best product to seal the marker and then a topcoat?

A. Wash the walls down with Resene Paint Prep and Housewash according to label directions then apply Resene Sureseal over the marker areas, allow to dry overnight then then apply topcoats of Resene Zylone Sheen or Resene SpaceCote Low Sheen.

May 2014

Q. I am repainting all the door frames in my 25 year old house. Do I need to undercoat first or just apply two topcoats of Resene waterbased paint?

A. I would always suggest using an undercoat such as Resene Quick Dry waterborne primer undercoat in this situation. The existing paint is more than likely an old enamel finish so after degreasing ensure that the old paint is sound and well sanded then apply the Resene Quick Dry undercoat followed by the two coats of waterborne enamel finish. For flat doors roller application using a Resene No 4 roller sleeve will give the best finish.

May 2014

Q. We've chosen Resene Half Wan White for our interior house colour, but our painter has advised it will take an extra coat of paint to provide the cover needed on doors, windows and skirtings. He's suggested full Resene Wan White instead.

A. We can see no technical basis to the comment made on the opacity differences between these two colours. The two colours applied at the same application rate will give the same coverage.

May 2014

Q. I have applied Alkyd Wallboard Sealer Undercoat on a bathroom celling, can I apply waterborne enamel on top of it?

A. We recommend application of Resene Quick Dry waterborne primer undercoat prior to application of the waterborne enamel topcoat.

May 2014

Q. I'd like to spray Resene Aquaclear waterborne urethane varnish on new furniture I make. I have a LVLP Star SLV 4000F series spray gun with an EVO-T nozzle - air inlet 15-19psi which currently has a 1.4mm nozzle. Can you please recommend the ideal nozzle/tip size for this product? Also, please advise on the ideal tip size for your turps based Resene Qristal clear polyurethane.

A. Best tip would be a 1.8 tip for both products.

May 2014

Q. With your concrete floor paint Resene Uracryl, does it full cure so no gases are released after cure or does it have a VOC volume?

A. Resene has Uracryl 400 and 800 series products. The mixed VOC of a 400 Series topcoat (solventborne) is about 400 grams per litre, the mixed VOC of a Uracryl 800 Series topcoat (waterborne) is 69 grams per litre. With good ventilation post application there should be no appreciable release of VOC to the atmosphere after 5 days cure.

May 2014

Q. Am I able to use your roof paint on wood? Like trim for windows and sills successfully?

A. We have two roof paints, Resene Hi-Glo and Resene Summit Roof. Both can be used for window trims and sills but the timber needs to be appropriately primed; of the two my recommendation would be for Resene Hi-Glo for this application. Neither product can be used to paint opening sashes – we recommend a waterborne enamel such as Resene Lustacryl (semi-gloss) or Resene Enamacryl (gloss).

May 2014

Q. I want to paint my Melteca kitchen cupboard doors white (currently they are cream). What products should I use – primers/sealers, paint type?

A. The following paint system can be used for painting laminates such as Melteca. Scrub down using a cleaner such as Jif and remove all residues. Wet sand with 400 wet and dry sandpaper taking care not to unduly scratch the laminate surface. Rinse clean and allow to dry then apply Resene Waterborne Smooth Surface Sealer (this only needs to be a thin coat and will not achieve opacity over the laminate colour). Allow to cure for 48 hours then undercoat with Resene Quick Dry waterborne primer undercoat and finish with two coats of Resene Lustacryl. For best result roll the topcoats using a Resene No.4 roller sleeve. The paint system will take at least 5 days to develop adhesion and harden, full cure requires a month. The painted surface will not have the hardness properties of the original laminate.

May 2014

Q. Can you confirm that the Wagner Project 115 with a 515 tip is suitable for applying Resene Broadwall Waterborne Sealer?

A. No not without over thinning the product. We would normally recommend a 517 tip and a sprayer with a flow rate of around 2 litres a minute.

May 2014

Q. I have a ceiling sarked with oregon timber that was stained about 35 years ago. The ceiling is in good shape apart from this patch where the roof has leaked and washed out the stain. I want to match the stain and restore these washed-out parts to as close to the original as possible. Can you please advise as to what prep to do and what type and colour of stain to use on the boards?

A. You will need: Resene Aquaclear satin 1 litre, Resene testpots – Resene Rob Roy, Resene Saddle Brown, Resene Coffee Bean, 2 small brushes and 1 metre 180 grit sandpaper.

Sand water stained areas then apply a coat of Resene Aquaclear and allow to dry. Apply a second coat of Resene Aquaclear slightly colour blended with the Resene Rob Roy colour to match the timber’s lightest tone and allow to dry. Blend a little of the darker tones with Resene Aquaclear and ‘drag’ the mix along the boards to replicate the timber grain. You may want to practice before tackling the ceiling - a cardboard box surface is ideal.

May 2014

Q. What paint should I use on the entrance to our front door? It is concrete steps up to a tongue and groove wooden floor, old and faded.

A. Scrub down with Resene Paint Prep and Housewash, rinse clean and allow to dry. Sand back any flaking paint to a sound edge and sand remaining paint to provide a key for the new paint. Prime any bare concrete with Resene Sureseal and then apply two coats of Resene Non-Skid Deck & Path.

May 2014

Q. We have our ceilings painted in Resene Decorator Acrylic Ceiling Flat Interior and spot cleaned insect spots and it has left on the ceiling noticeable marks where the cleaning was done. A clean cloth and only water was used but it looks really bad in certain lights. What would be the reason for this?

A. Ceiling paints are formulated to give a flat finish and to achieve this level of flatness the paints are extender rich and a minimum amount of resin is used to bind the pigments in the paint. As a result when these paints are cleaned they burnish and what I expect you are seeing are areas of gloss change, the cleaned areas will appear higher in gloss. To produce a waterborne cleanable flat paint chemists use waterborne enamel resins which give a harder paint film than paints made on conventional waterborne resins. Resene has Resene SpaceCote Flat which is a flat finish suitable for ceilings and walls and when fully cured has much better burnish resistance when cleaned. We also have a version with an added fly deterrent, while this will not stop fly spotting we know from independent trials that the incidence of fly spotting is reduced.

May 2014

Q. I have a games room with a concrete ceiling. I painted it some time ago with waterbased paint and it has now bubbled, blistered and peeled in sheets. The exterior has been covered with butynol to stop water leaking through. How can I rectify it?

A. The blistering is most likely due to water ingress. The first job is always to ensure that that is fixed first, which it sounds like you have done. To finish the inside area, scrape off any flaking paint back to a sound edge, remove any efflorescence by wire brushing, dust off and apply Resene Sureseal to areas of bare concrete. You can then apply two coats of a ceiling flat paint, such as Resene Ceiling Flat or Resene SpaceCote Flat to the ceiling.

May 2014

Q. We have a bright green Formica benchtop in our kitchen. Is there anything we can paint over it to change the colour?

A. The following paint system can be used for painting laminates such as Melteca. Scrub down using a cleaner such as Jiff and remove all residues. Wet sand with 400 wet and dry sandpaper taking care not to unduly scratch the laminate surface. Rinse clean and allow to dry then apply Resene Waterborne Smooth Surface Sealer (this only needs to be a thin coat and will not achieve opacity over the laminate colour). Allow to cure for 48 hours then undercoat with Resene Quick Dry waterborne primer undercoat and finish with two coats of Resene Lustacryl. For best result roll the topcoats using a Resene No.4 roller sleeve. The paint system will take at least five days to develop adhesion and harden, full cure requires a month. The painted surface will not have the hardness properties of the original laminate.

May 2014

Q. How long does the paste last on pre-pasted wallpaper?

A. Pre-pasted wallpaper is designed to be used as soon as possible after purchase. The paste on the backing of pre-pasted wallpaper breaks down over time while in storage. This is not a product fault but merely the nature of the type of adhesive used.

It is best to avoid storing it. If the wallpaper has been stored for a period of time, it can still be used; however the installer will need to check for the presence of paste:

Step 1 - Open and unroll the wallpaper.
Step 2 - Using a wet sponge, wet from edge to edge of the drop.
Step 3 - Feel for presence of adhesive or ‘tackiness’ especially on the edges of the drop.

If there is any doubt, paste the wallpaper as per the instructions for un-pasted wallcoverings.

May 2014

Q. I have stripped the top layer of vinyl wallpaper off and found that underneath the wallpaper is a layer of paint and then another layer of wallpaper. Is it possible to just paint over the paper backing of the first layer of wallpaper? If so, what should I do to prepare the wall? If not, what is the best way to remove all the layers?

A. You can paint over the backing layer but you first need to seal it with Resene Sureseal then apply a coat of Resene Broadwall Surface Prep and Seal.

May 2014

Q. We are painting a mural on an outside wall of a classroom and we were wondering what we would need to do to prepare the surface. Once we have painted the mural which overcoat should we use? The wooden wall is already painted white and has a weather coat. The size that we hope our mural to be is 3m x 4.5m, using five different colours of paint.

A. If the paint on the wall is sound then you can use Resene testpots for painting the mural. To protect murals from tagging they are often overcoated with an anti-graffiti clear coat such as Resene Uracryl Graffitishield. However this will need a degree of application expertise as the anti-graffiti clears are two component paints.

June 2014

Q. Can you please advise the best paint for external weatherboards and the eaves and fascia board etc? I have selected the colours. Just need advice on which paint product from your range and which gloss level to use in the different areas.

A. We recommend you use Resene Sonyx 101 (semi-gloss) or Resene Lumbersider (low sheen) for the weatherboards, fascias and eaves.

June 2014

Q. I am painting the interior of my house and want to know for the doors should I be using an enamel or waterborne enamel paint?

A. Traditional solventborne enamels are more wear resistant than the waterborne version but many DIY users prefer to use a waterborne paint due to the solvents released from a solventborne paint.

June 2014

Q. I have laid oak floors and would like to colour the wood a darker shade and then sand. What product and colours do you have?

A. Depends upon how dark you want to go and the colour you are wanting. You can see some options online.

It would be good for you to visit a Resene ColorShop and ask the staff to show you the Resene Woodcare stand. This will show you the Resene range of wood stain colours and the possible use of Resene Colorwood Enhance.

June 2014

Q. How can we remove dried paint splashes from aluminium window frames?

A. If the paint is waterborne and fresh try wiping with meths and a cloth. Alternatively use Resene Brush Cleaner and a cloth but wear protective gloves when using the Resene Brush Cleaner. Wash the cleaned area down with water after wiping with the Resene Brush Cleaner. Try a small area first to ensure that there is no effect on the aluminium.

June 2014

Q. Can you suggest a clear, protective coating suitable for an internal hot rolled steel screen? It’s to prevent smudges/fingerprints and needs to be a matte finish.

A. Sorry we don’t have a flat finish product for this application. Application of three coats of Resene Uracryl 403 (gloss) or Resene Uracryl 402 (semi-gloss) Clear has been used for internal steel but this does not necessarily stop corrosion of the steel underneath the clear layer. Steel will need to be degreased before application of the Resene Uracryl clears.

June 2014

Q. I am building an exterior seat out of macrocarpa slab. I want to preserve its natural colour and seal the timber as well.

A. Apply a Resene Woodsman Wood Oil Stain colour as close as possible to the timber colour.

June 2014

Q. My sectional garage doors are showing signs of chalking. They are not too bad but the lower doors that get more sun are signalling that deterioration is beginning. I've pondered over applying a wax polish or similar but a web search showed better solutions are available. My question is, does Resene have a solution to this?

A. The doors were probably originally powdercoated. Powdercoated substrates can undergo a rapid chalking in severe exposures. We do not have a polish to restore gloss for these as the chalking will re-occur. We recommend repainting the doors with an acrylic such as Resene Summit Roof. Remove the chalking by scrubbing down with Resene Paint Prep and Housewash according to the label directions then apply two coats of Resene Summit Roof tinted to your required colour.

June 2014

Q. Is it possible to paint a portable gas heater?

A. Yes but it will involve using strong solvent containing paints and also two pack paints, so there may be a lingering solvent odour for some time after the heater is used.

June 2014

Q. We are repairing the kitchen and an automatic bug sprayer had been spraying against the wall for a sustained period. What is the best way to clean off the spray and ensure that the new paint applies over the area without it bleeding through?

A. Wipe the area down with Resene Emulsifiable Solvent Cleaner and then wash down with water until the wash water is no longer milky (you will need to rinse the cloth out each time and also change the wash water for each wash down). Allow to dry then apply Resene Sureseal to the affected areas, allow to cure overnight then apply a coat of Resene StainLock over the Resene Sureseal before applying two coats of Resene acrylic wall paint, such as Resene Zylone Sheen or Resene SpaceCote Low Sheen.

June 2014

Q. I have a terracotta warrior and his paint coating is lifting. I need to seal him because I want him to be outdoors. Can you suggest a product?

A. Resene Sureseal will seal the bare terracotta but it will not adhere lifting paint.

June 2014

Q. We have bought a scruffy house which needs everything. It has solid pine floors which are not that pretty and which I would like to paint. Can I use the same paint which will be used for the exterior of the house or should I buy a special paint? My husband says wear will be a factor but it would be nice not to have to buy many different types.

A. Wear will be a factor, paints formulated for external application to walls do not have wear as a targeted feature. However low sheen acrylics such as Resene Lumbersider have been successfully used as a coating for wooden floors subject to foot traffic (except wet areas such as bathrooms and laundries). Areas of wear are easily touched up.

June 2014

Q. What is the best way to cover vivid marker writing on a painted wall?

A. Seal off the marker with either Resene Sureseal or Resene StainLock before re painting with the original paint and colour.

June 2014

Q. Do you have a product for wooden decking that reduces slipping especially in frosty conditions?

A. Yes, Resene Non-Skid Deck & Path.

June 2014

Q. I have an area reclad with pre-primed Shadowclad® - exposed about one week. Does it need additional priming or undercoat before the acrylic topcoat(s)?

A. If using a CoolColour™ topcoat we would always recommend application of a white basecoat prior to application of the two coats of topcoat. In any event application of an undercoat will improve durability of the system. For this application we would recommend Resene Quick Dry waterborne primer undercoat as the undercoat followed by two coats of Resene Sonyx 101 (semi-gloss) or Resene Lumbersider (low sheen).

June 2014

Q. I am about to erect a paling fence and would like to pre-paint treated pine or cyprus rails and pickets with a self-priming paint. What should I use?

A. You can use Resene Lumbersider for this application.

June 2014

Q. I cut and supply acrylic splashbacks. Can you please advise the best paint to use on clear cast acrylic to paint on the back of sheets as the colour would be seen through the clear? Also is it available in testpots so I can make up samples for clients to see?

A. You can use Resene testpots for this application.

June 2014

Q. I'm looking at painting my wooden kitchen cupboards - I've been looking at various options, but wondered what paint you'd suggest? I want it to be very hardwearing!

A. I would suggest that you use a traditional solventborne enamel paint system as these are more resistant to wear than a waterborne enamel type.

June 2014

Q. I am a little overwhelmed by the choices of enamel paints (water or solventborne). We are considering one of the bathroom/kitchen paints for their mould resistance properties although we are applying it inside our yacht. We are not looking for marine specific paint, but a good strong enamel. The thing is, we have a solventborne enamel paint on the bulkheads now. Are there waterborne ones that would stick to that?

A. There are two distinct types of waterborne enamels. The type we produce is based on a cross linking acrylic resin and even when fully cured is not as hard as the traditional solventborne enamel paints. The other type ts based on an emulsified alkyd resin and these do cure to be the same as the solventborne version and have the same deficiencies as the latter, are very brittle and yellow over time.

June 2014

Q. I am making an MDF bookcase. Can you advise what is the best paint to use on MDF? Needs to be hardwearing for sliding books in and out. Also, would it need an undercoat or is it ok to just put two coats on?

A. Prime with Resene Quick Dry Waterborne Primer Undercoat then apply two coats of Resene Lustacryl waterborne enamel.

June 2014

Q. Can you advise what undercoat I should use on an unpainted concrete tank? The tank has a plastic liner and there is no seepage from the water in the tank.

A. Use Resene Sureseal to prime the old concrete before applying a Resene exterior acrylic topcoat.

June 2014

Q. I am looking to establish the Critical Radiant flux value for a clear finish to a strandfloor (plywood flooring).

A. Critical Radiant Flux for Timber floor at least 12mm thick can be assumed to achieve 2.2Kw/m2, coated or uncoated.

June 2014

Q. I'd like to repaint some concrete pavers I’ve been given. They are 50mm thick and very solid but the colour (throughout the paver) has faded. What’s the best product to use to recoat them? Also would it be better to repaint them singly before laying them, or lay them first and then paint them?

A. Resene Concrete Stain. To avoid water coming through the pavers you should install a waterproof layer before laying.

June 2014

Q. I am moving into a new cottage soon with a concrete floor. I can't afford carpet or lino so I thought I'd just seal the concrete. First what product do you recommend and bearing in mind that the concrete will only be four weeks or so ‘dried’ will sealing it so early cause any problems?

A. Generally concrete floors are not ready to be painted until they’ve been down around three months. Applying a dust retardant type sealer such as Resene Cemseal shouldn’t present any problem though as it’s a penetrating type sealer, not film forming. Applying any film forming clear coating would need be done after the three month period and following suitable preparation such as diamond grinding (and really requires specialist application).

June 2014

Q. I have built an island unit in my kitchen and want to apply painted toughened glass to the wall surfaces. I have the glass and spray gun and compressor. Can you please tell me the undercoat and topcoat system I should use to apply the paint to the glass?

A. Resene Imperite 503 is the product you want as it’s used by a number of splashback companies. It’s a specialist product (two pack) and requires a bit of expertise to apply. Generally you paint the back side that fixes against the wall, then all you have is glass exposed to the kitchen and you can’t damage the paint etc.

June 2014

Q. What are the lowest sheen levels I can specify for an exterior? One part is fascia and non-moving timber (verandah posts, decorative trim) and the second part windows (unpainted cedar). Internally I am specifying Resene SpaceCote Flat walls and would like to pair it with low sheen trim. Is low sheen okay for windows and doors internally (obviously there's no kids or pets)?

A. Our best recommended option for the lowest sheen on exterior would be Resene Lumbersider (low sheen) for posts and trim. We generally don’t recommend anything lower than Resene Lustacryl (semi-gloss waterborne enamel) for exterior windows. We don’t have an exterior clear option here as they are not a long term durable option, and generally fail prematurely. Interior you could use Resene SpaceCote Low Sheen for trim and doors etc. It’s a waterborne enamel so not susceptible to blocking (sticking).

June 2014

Q. I am looking to buy a cheap set of drawers to paint for my kids. What kind of timber should I be looking for? I heard veneer isn't the best.

A. Unfortunately ‘cheap’ usually aligns itself with MDF/veneer type drawers when you are dealing with furniture. Anything that is solid timber will always last much longer and will be more easily painted. Pine timber or similar would be a good option and easily painted.

June 2014

Q. Is Resene MoulDefender added to paint safe for pantry shelves and walls?

A. Resene MoulDefender additive is perfectly safe; however a great option would be a product like Resene Lustacryl Kitchen & Bathroom. It includes MoulDefender and also anti-bacterial silver.

June 2014

Q. What is the sheen level recommended (and perhaps minimum sheen) for a new plasterboard ceiling in a lounge with a woodburner fire?

A. The ceiling should be treated like any other as the common issues with ceilings remain i.e. critical light, jointing imperfections etc therefore a flat coating is usually preferred. A modern woodburner is a closed unit and there shouldn’t be any airborne contaminants etc that will settle on the surface. If some cleanability is required then the use of Resene SpaceCote Flat would be an excellent option.

June 2014

Q. We are getting two new driveway gates of dressed pine. The present gates have rotted where rain water collected and I'm keen to avoid problems again by attention of course to the gate design, but also by a good paint system.

A. The type of timber and construction detail is most important in this situation. A paint system to suit would be: prime with Resene Wood Primer (oil based), undercoat with Resene Quick Dry (waterborne primer) and finish with two topcoats of Resene Enamacryl waterborne enamel.

June 2014

Q. We will specify Resene Uracryl 402 for a concrete noise wall with steel posts. Wall and posts to be green and black pigmented. Posts will be galvanised to HDG600 which provides required durability on its own. We therefore only propose to specify D88 cleaner and Resene Vinyl Etch primer for posts. Question is - do we also need a basecoat because of the pigmented topcoat?

A. No basecoat required for pigmented topcoats over Resene Vinyl Etch.

June 2014

Q. We have brown aluminium window frames and we want to repaint them white. What is the best way to do this and what product would you recommend?

A. Assuming the aluminium windows are presently unpainted, a suitable system would be: Scrub down with Resene Roof and Metal Wash using a bristle brush. Rinse thoroughly, wet sand to remove any areas of corrosion. Remove any dust etc. Prime with Resene Vinyl Etch then apply two topcoats of Resene Enamacryl.

June 2014

Q. What is the best paint for children's furniture? I have an old wooden high chair I'll be using and an old toy box.

A. For bare timber prime with Resene Quick Dry waterborne primer undercoat and then apply two coats of Resene Lustacryl. Leave the painted item to cure for at least two weeks in a well-ventilated area then wipe down with a cloth and Resene Interior Paintwork Cleaner and wipe dry. Both products are waterborne (low volatile organic content) and Environmental Choice Approved and therefore contain no heavy metals or formaldehyde.

June 2014

Q. I have a customer with a new fibreglass entrance door to be painted and the manufacturer recommends oil based paints. Are you able to let me know what paints I need to use to get a finish that will last?

A. The manufacturer’s recommendation to use oil based paints is based on achieving adhesion of paint to the fibreglass door skin. The down side of oil-based paints is that they are prone to chalking upon exterior exposure to full weathering. In this case you could use Resene Enamel Undercoat as the base coat then apply 2 coats of a Resene waterborne enamel finish as the top coat. This will give a longer time to the onset of chalking of the exposed top coat.

June 2014

Q. I am painting windows and need advice on painting the putty. The putty is several months old and well dried. Some websites call for oil based paint because the putty was linseed oil based. I am using Resene Quick Dry waterborne primer undercoat on the timber.

A. Cured linseed oil putty can only be primed with an oil based undercoat such as Resene Enamel Undercoat. Given that the putty will now be well cured a light sand before priming is recommended.

June 2014

Q. Please advise if internal solid and hollow core doors should have their tops and bottoms painted. Is there a NZS or BRANZ requirement or is it just considered best trade practice of what a competent painter would do?

A. There is a NZS that does state that the top and bottom of doors are to be painted or at least sealed with a primer or undercoat. In my opinion this is a must for bathroom doors and doors with an external face as this reduces the possibility of water uptake which can cause dimensional changes to occur.

June 2014

Q. Can I buy paint that has a built in primer as well as a mould and moss inhibitor in it? Would you recommend using this paint on a plaster exterior without waterblasting the house?

A. Additives added to paint for mould/moss control are inhibitive and will not kill existing mould and mould spores. Acrylic paints such as Resene X-200 can be applied direct to a sound plaster substrate that is free of mould and moss growth. You can treat moss and mould with Resene Moss & Mould Killer.

June 2014

Q. We want to paint the particle board floor in the dining room of our 1970s home. It has lots of rimu trim but not nice hardwood floors! How would we go about this?

A. Ensure the floor is free of dirt and grease contamination, thoroughly sand with 220 grit sandpaper and dust off then prime with two coats of Resene Quick Dry waterborne primer undercoat and two coats of Resene Lustacryl Kitchen & Bathroom tinted to your chosen colour. Leave to cure with heat and ventilation for at least 24 hours before returning to use.

June 2014

Q. I have COLORSTEEL® guttering that is rusting on the external exposed edges. This is the second time treating and painting thus the 'Zincalume' on these edges is either thin or completely removed. I have been recommended to use just Resene Galvo One or a combination of Resene Rust-Arrest then Resene Galvo One then topcoat. If using only Resene Galvo One will this still bond well to the areas where the Zincalume is thin/removed i.e where it is basically steel? The rust has been hand removed thus the steel is shiny.

A. Resene Rust-Arrest cannot be applied directly to Zincalume or galvanising as this primer will undergo breakdown due to a chemical reaction known as saponification. Wash-down the areas to be painted using Resene Roof and Metal Wash according to label directions. Remove all loose corrosion products and under film corrosion products back to a sound edge then apply 2 coats of Resene Galvo One primer.

June 2014

Q. I'm going to re-paint my 15 year old smooth finished Hardiplank house. Paint is in good condition, except for rust staining around galvanised flat heads. I was thinking of using Resene Lumbersider. What is the best filler for Hardiplank? I want a smooth finish - what do you suggest? Brush, roller or speedbrush?

A. You can use Resene Lumbersider (low sheen) or Resene Sonyx 101 (semi-gloss) as the paint finish. Assuming there is no moss or mould scrub down the paintwork using Resene Paint Prep and Housewash according to directions. Rinse off with water and allow to dry. Remove paint from around the nail heads to expose the metal and then prime with two coats of Resene Galvo One. If you need to fill holes etc then use PAL Contract Filler. We recommend using a Resene No.1 sleeve for rolling Resene Lumbersider or Resene Sonyx 101.

June 2014

Q. Our room has been renovated and there is some plaster where repairs have been made. The remaining wall area was painted in a lightish brown. The painter has sealed three coats. The painter has also claimed that she can roll leaving no stipple and I believe has been overrolling of the paint. Is it considered normal to seal a wall where there is a change of colour, especially to white? If a good quality paint is used, is it still possible for the paint to be transparent? Could over-rolling contribute to transparency? Would you normally expect to paint an interior acrylic with no stipple at all?

A. It’s optional but if the old colour is dark then a sealer is more likely to be used. If insufficient paint has been supplied (.g.it has been overspread) then this can reduce the paint’s hiding power and make it look transparent. Rolling always creates a stipple but this varies with the roller sleeve used for application.

June 2014

Q. Have used Resene Enamacryl Metallic Silver Aluminium for a feature wall with stunning results. One small problem - I have vertical lines showing. How do I get rid of the lines? I've used a 6mm mohair 230mm cover. Would a foam roller be better? The lines are at the end of each downward stroke at the ends of the roller cover which was a new one.

A. Application of Resene Enamacryl metallic paints can be tricky. See the back of the Metallics chart for the recommended application information. Some of your problems may be due to use of the wrong roller sleeve. We recommend you use a metallic sleeve.

June 2014

Q. Can you use Resene Blackboard Paint over Resene Magnetic Magic to create a magnetic/writable surface? Do liquid chalk pens affect the Blackboard Paint, or can they be used as with any other chalk?

A. Yes Resene Blackboard Paint can be used as the topcoat system over Resene Magnetic Magic. Before topcoating the magnetic layer check that the magnets you are going to use do attach well to the magnetic base layer, if not apply additional Resene Magnetic Magic. You can use the liquid chalk pens as well as dry chalk sticks. With some colours a damp cloth maybe needed to remove all traces of the chalk work.

June 2014

Q. Can you please recommend a cost effective system to restore and protect rusted galvanised metal sheet and steel? I have an old trailer with sound metal but large areas of the galvanised sheet have surface rust as well as some breakthrough in the general frame.

A. Use a 3M Rust and Paint Removal disc to remove all loose corrosion material. Then apply two coats of Resene Armourcote 221 epoxy primer and two coats of Resene Uracryl 403 colour.

June 2014

Q. Can Butyl (roof membrane) be painted?

A. Yes, paint will not ensure repair of weathertightness; the paint will however protect the butynol from UV breakdown.

June 2014

Q. I want to paint a wood panelled wall in a bedroom. Do I first use a pigmented sealer or a primer before paint is applied?

A. If the wood paneling is varnished then use Resene Waterborne Smooth Surface Sealer as the adhesion primer. If the timber panelling is not coated then use a wood primer such as Resene Quick Dry waterborne primer undercoat. You can then apply Resene wall paints.

June 2014

Q. Which paint is used to finish exterior plaster finish and is there a limited colour palette?

A. Resene X-200 would be our standard system for exterior plaster to achieve a weathertight paint finish, available in a wide range of Resene colours.

June 2014

Q. What product would you recommend for stripping paint prior to repainting?

A. Resene only recommends paint strippers that are free from methylene chloride as this chemical has been identified as a possible carcinogen. It is our understanding that many paint strippers in New Zealand currently do contain this solvent. From a speed perspective methylene chloride based paint strippers work very quickly, paint strippers that are free of the chemical are slower to react but in principle safer to use. We recommend Sea 2 Sky paint stripper, available from Resene ColorShops.

June 2014

Q. What paint do you recommend for a EIFS cladding plaster system with render and RTU plaster?

A. We recommend Resene X-200.

June 2014

Q. What paint type would you recommend for painting concrete stormwater pipes used in a children’s playground as adventure tunnels?

A. We recommend Resene exterior paints, such as Resene Lumbersider low sheen waterborne paint in two coats.

June 2014

Q. We have on old red brick house. We want to waterproof the bricks to stop any damp. We have found a tin of Resene Aquapel in the shed with a very small amount in. Is this what you use? Do you dilute it with water?

A. There are two versions of Resene Aquapel, a waterborne and a solventborne version. Application of either of these will not result in a weathertight finish as the products are water repellent treatments and do not form a film which is required for weathertightness.

June 2014

Q. I am repainting my whole house and have chosen colours Resene Calico, Resene Cashmere and Resene Champagne. Because the house was previously painted do I need to do an undercoat or sealant at all? Because I have chosen different colours can you use a different undercoat as I thought undercoats were typically white?

A. If the existing paint system is an acrylic and sound then cleaning down to remove dirt/oil/grease/mould is all that is required prior to application of two coats of the new acrylic paint colours. There are dedicated primers for each substrate, only required over bare substrate areas. For almost all Resene colours you can achieve two coat hiding. If you need to prime or seal then you will still need the two coats of topcoat to achieve colour uniformity.

June 2014

Q. Can I paint over cork tiles?

A. Yes, but preparation and system will be dictated by the condition of the tiles and where the tiles are located within the property. Clean the clear coated tiles to remove dirt, dust, grease, and oil then thoroughly sand to a matt finish, dust off and then prime with Resene Quick Dry waterborne primer undercoat then you can apply two coats of a Resene waterborne enamel paint finish.

June 2014

Q. I used Resene Qristal ClearFloor on my new cork tile floor, which is 6 months old. The people who were staying there have made big scratches on the floor - how can I remedy this? Also - the sun has faded it really badly.

A. The clear layer cannot fade so it sounds as though the timber has faded due to exposure to intense U.V. through windows. This will occur even if there was no clear coating.

If 3 coats were applied the clear will be resistant to normal foot traffic. The scratching sounds like something with a sharp edge has been dragged across the floor. To repair you will need to sand the floor (no need to remove all of the clear layer) then reapply 2 or 3 coats of the varnish.

June 2014

Q. I want to paint my bathroom and it is partly lined with old Seratone. While replacing the seratone would be the best option I don't have the budget available for that. Can I paint over the Seratone? It is around the bath area that doesn't get much water on it at all.

A. Ensure there are no soap resides on the Seratone. If possible wet sand with 400 wet and dry sandpaper apply then apply Resene Waterborne Smooth Surface Sealer and leave to cure for at least 48 hours then apply a coat of Resene Quick Dry waterborne primer undercoat followed by two coats of Resene Lustacryl Kitchen & Bathroom. Allow the painted finish to cure for 48 hours with heat and ventilation before exposing the newly painted areas to water and steam.

June 2014

Q. After staining ply flooring with Resene Colorwood Whitewash (two coats) what product should I seal it with or don't I have to seal it?

A. The standard Resene system is three coats of waterborne varnish so If you have applied two coats of Resene Colorwood Whitewash then you will need an additional coat of Resene Aquaclear.

June 2014

Q. Can I paint brown over grey using concrete paint for concrete?

A. If you are referring to overcoating with Resene Concrete Stain, the answer is yes but due to the semi-transparent nature of the product the base colour will influence the final colour.

June 2014

Q. We are negotiating to buy a Lockwood that has had its interior walls painted white. It is not a good paint job and we think that the walls were probably not properly prepared beforehand. Is the paint likely to start to peel off, and if so, what are our options?

A. If the varnished walls were not thoroughly sanded or an adhesion primer used before application of the pigmented top coat then there may be an adhesion issue, hard to say if the white paint will peel from the surface. You could ask for a paint adhesion test to be carried out as part of the negotiation or seek the background on what was done re the painting.

June 2014

Q. I bought a 1914 home with hardwood floors and wood panelling halfway up the walls in the bathroom. The window and door frames are also natural wood but we would like to paint the frames, skirting boards and the panels white, and then paint the walls a colour we like (they're now red). What do I need to do? I have tested the existing finish with meths and it does not affect it.

A. Wash down using Resene Interior Paintwork Cleaner. Apply Resene Waterborne Smooth Surface Sealer (this is a thin primer coat and opacity is not necessary). Allow to cure for at least 48 hours before applying a coat of Resene Quick Dry waterborne primer undercoat and then finish with two coats of a Resene waterborne enamel paint, such as Resene Lustacryl, tinted to your required colour. The system will take a minimum of five days to develop.

June 2014

Q. How to know whether to use a gloss or semi-gloss for Resene Ecstasy, on outside concrete walls?

A. In principle a gloss finish will have a longer time to the onset of chalking than a lower gloss level but the higher the gloss the more surface defects are shown up. In this case you could select either but we would probably recommend Resene Sonyx 101, a semi-gloss finish.

June 2014

Q. We have a concrete garage floor that needs repainting. The condition is very good except where car tyres are when parked. Paint lifted exposes bare concrete. Please advise preparation and paint recommended.

A. Remove all of the existing floor coatings by diamond grinding then apply the Resene Aquapoxy for Flooring system.

June 2014

Q. What is the best paint for a kitchen? What paint should I use if I am painting over Resene Sonyx 101 (in a kitchen)?

A. We would not normally see Resene Sonyx 101 being used for interior paint jobs, even less so for kitchens. The system would be to apply a coat of Resene Quick Dry waterborne primer undercoat and then two coats of a Resene waterborne enamel such as Resene SpaceCote Low Sheen Kitchen & Bathroom.

June 2014

Q. I have just removed an unsound layer of wallpaper from a toilet and have found another painted over layer of wallpaper. I do not want to remove this, I just want to paint over it. I have some Resene Broadwall waterborne plasterboard sealer, could I use this as my basecoat on the painted wallpaper to provide a smoother base for my topcoat?

A. The sealer you have is recommended for sealing bare plasterboard/stopping. Assuming that you now have a sound paint finish, wash down with warm water and if the paint revealed after removal of the outer most layer of wallpaper is sound, sand with 220 grit sandpaper, dust off and apply a full coat of Resene Quick Dry waterborne primer undercoat followed by two coats of Resene Kitchen & Bathroom waterborne enamel topcoat tinted to your required colour. Ensure that the newly painted area is maintained in a well-ventilated and warm state for at least 48 hours after the last coat of paint is applied.

June 2014

Q. I am looking for a paint to paint a few wooden furniture items white. What paint would you recommend? They are clean surfaces ready to be painted.

A. We recommend Resene Lumbersider low sheen.

June 2014

Q. I am restoring an outdoor table. This has been made from plantation Eucalyptus which despite coating has developed black mould. This is being dealt to (successfully) but I read somewhere that soft woods have inherent mould spores and a clear sealer is recommended prior to further coating. Does Resene make a clear sealer?

A. Mould is part of nature's armory to return dead timber to a nutrient source. I have not come across any reference to softwoods having an inherent mould issue but as they are softer the rate of decomposition is likely to occur more quickly than a hardwood species in the same situation.

Resene does not recommend application of clear coating systems for exterior timbers irrespective of timber type as they do not provide sufficient protection to the timber.

June 2014

Q. What type of paint should I use when painting a baby cot, which has already been painted?

A. Sand back to a smooth finish; you do not need to remove all of the old paint. Apply a coat of Resene Quick Dry waterborne primer undercoat and follow with two coats of Resene Lustacryl tinted to your chosen colour. Leave to dry for two weeks in a warm well-ventilated area, wipe down with a cloth and warm water and replace the water if the wash water becomes cloudy. Then you can place the cot back in use.

June 2014

Q. I've recently painted a whiteboard onto one of our office walls. It doesn't go floor to ceiling so I need to put a border around it. The length of the area is about 3-4 metres. If I just tape off where I want the borders to go and paint between the tape, I'm worried that it will bleed down under the tape and create a ragged edge. I really don't want to cut in the whole thing if I can avoid it but is that the best way? Also, what sort of paint would you recommend I use? The border will be black and should be able to handle a whiteboard eraser going over it.

A. The best tape we have found to avoid creep is Sellotape Washi tape, the orange coloured tape. You could use the same paint for the border as you used for the wall.

June 2014

Q. I am in the process of repairing a dining room table that has a dark veneer colour. I would like to use a stain to complete this, would you have any advice regarding the stain to be used and the process i.e, sanding, primer etc.? Does your company make stain and would you have a testpot that you could supply me with?

A. Assuming the table has a varnish layer - to restain it, the varnish layer must be removed by sanding, care is needed when sanding veneer as the sanding may cut through the veneer. You can then restain to match and reapply three coats of a clear varnish. Use Resene Colorwood wood stain which is available in Resene testpots.

June 2014

Q. I have an old mahogany sideboard I have stripped back (it had been painted). Unfortunately most of it is veneer and is past its best. I will need to paint most of it apart from the top and legs. Can you recommend undercoat to use? And because some of the areas to be painted may be small e.g. drawer fronts, would a testpot be suitable for the colour coat.

A. We would recommend using a waterborne enamel finish for furniture. Resene testpots are made using a conventional acrylic resin system and hence the paint is not as resistant to wear as a waterborne enamel finish. You can use testpots for small areas as long as you accept the limitations of the paint being used.

June 2014

Q. I want to use Resene Bokara Grey on the exterior of our new house which is Axon Board. Would that be ok?

A. The following is taken from the James Hardie Tech Supplement and relates to the painting of Axon boards (excludes PVC joiners):
FINISHES
Axon Panels are supplied pre primed and must be painted within 90 days of installation. Use only quality exterior paints complying with AS 3730. Manufacturer's specifications for the selected paint application must be followed. Certain special paints require an undercoat. Check with paint manufacturer before commencing the paint work. Axon Panels can be painted with dark colour paints. Some environments require special coatings.

You can use the colour Bokara Grey as the finish colour but given the colour we strongly recommend that you use the Resene CoolColour™ version applied over a coat of Resene Quick Dry waterborne primer undercoat to maximise the benefits of the CoolColour technology. Please note that the surface painted in the CoolColour version will reflect more heat than the same surface painted with the colour formulated using non CoolColour pigments.

June 2014

Q. I want to change the colour of my laminated kitchen benchtop. Is there a system and paint that I can use?

A. Yes, degrease and then wet sand with 400 wet and dry sandpaper (taking care not to unduly scratch the surface) wipe clean and allow to dry then apply a coat of Resene Waterborne Smooth Surface Sealer (note this is an adhesion primer and not designed to give opacity or high build). Allow to dry for 48 hours with good ventilation then apply a coat of Resene Quick Dry waterborne primer undercoat followed by two coats of Resene Lustacryl semi-gloss waterborne enamel. Allow to cure for at least five days before re-using. Note that the painted surface will not replicate the properties of the original laminate surface.

Junly 2014

Q. I have a tile layer surrounding my potbelly fire. They are brown and very 80s and I want to paint over it to update the look. I am aiming for a charcoal colour but don't know what product to use.

A. Ensure the tiles are clean and grease free then apply Resene ConcreteSeal 3 in 1, apply Resene Quick Dry waterborne primer undercoat then two coats of Resene Lusta-Glo enamel tinted to your chosen colour. This paint system will be damaged if hot ash or embers fall onto the coated area.

July 2014

Q. Could you please advise me of the best paint to use on bitumen speed bumps? I need to paint yellow and black stripes. The speed bumps are bitumen and would be a few years old. They are inside a gated complex, so no outside traffic. We have about 60 units so get a bit of traffic but not a lot.

A. Given the low level of trafficability you could use Resene Lumbersider for painting the lines, not as hardwearing for tyres as a dedicated road marking paint but can be easily touched up.

July 2014

Q. Can you tell me if you supply or have knowledge of a non-toxic polyurethane spray that is suitable for re-coating ceramic floor tiles?

A. I assume by toxicity you are referring to solvent containing polyurethanes. We sell Resene Aquaclear which is a waterborne varnish, but the product is not available as a spray can.

July 2014

Q. Some rooms in our house, which we rent out but are separate from our house, have yellow staining on the ceiling. We have an old 1903 villa all on the same level but we don't have this yellow staining on our side of the house. In the 6 years we've owned the house there haven't been any smokers in there, unsure of beforehand. What could this be and how would we get rid of it when we renovate/paint?

A. If it is not smoke staining then the other usual reason is a leak in the ceiling cavity. You should get a builder to check for dampness and if not then it could well be smoke staining which you can seal by applying Resene Sureseal to the ceiling before painting with acrylic celling paints.

July 2014

Q. I want to paint our kitchen cabinetry which I am guessing is Formica, Melteca or melamine. It's approximately 15 years old and has a very slight grainy texture. Do you have product(s) that I can spray, roll or brush on and will it be a durable surface? I am picking it will be a two pot system or similar.

A. The following can be used to change the colour of the laminate. Degrease and then wet sand with 400 wet and dry sandpaper (taking care not to unduly scratch the surface) wipe clean and allow to dry then apply a coat of Resene Waterborne Smooth Surface Sealer (note this is an adhesion primer and not designed to give opacity or high build). Allow to dry for 48 hours with good ventilation then apply a coat of Resene Quick Dry waterborne primer undercoat followed by two coats of Resene Lustacryl semi-gloss waterborne enamel. Allow to cure for at least five days before re-using. Note that the painted surface will not replicate the properties of the original laminate surface. If you want to have a two pot system I suggest that this is best done by a furniture painting business.

July 2014

Q. We are using Resene Lumbersider on new fascia cement board fixed with stainless steel small flat head nails. Do the nailheads need priming?

A. Yes, you can use Resene Galvo-Prime or Resene Galvo One as the primer.

July 2014

Q. I have aluminium cladding on my house near the coast and need to repaint it after earthquake damage repairs. What product - undercoat and finish - and preparation do you recommend?

A. Wash down with Resene Roof and Metal Wash according to label. Allow the washed areas to dry, then prime bare aluminum with Resene Galvo One and follow with two coats of Resene Sonyx 101 semi-gloss waterborne paint tinted to your selected colour.

July 2014

Q. I am just building a new workshop with a concrete floor. I will be using one bay for general storage of building materials and woodworking machinery and one bay for a mechanical/car repair workshop. I would like to paint the floor myself but would like to know the best system to use. It would be easier to use the same product for both floors. There will be more mess to the mechanical bay floor due to petrol, oils and brake fluid spills.

A. The only system we would offer is Resene Aquapoxy for Flooring. The floor will need to be diamond ground and then sealed with Resene ArmourBond prior to applying the three coats of Resene Aquapoxy.

July 2014

Q. I am looking for a low sheen paint finish on MDF capable of achieving a surface group rating of 3.

A. Prime with Resene Quick Dry waterborne primer undercoat and then apply two coats of Resene SpaceCote Low Sheen or Resene Zylone Sheen.

July 2014

Q. What is the most suitable paint to use for an outdoor corrugated fence (already painted), that is safe for under 5 year old children?

A. You can use any Resene exterior acrylic paint, all have Environmental Choice Approval which requires the paint to be free of formaldehyde, heavy metal pigments such as lead and a VOC (volatile organic content ) less than 199 grams per litre. Suggest you use Resene Summit Roof, as long as the existing painted surface is an acrylic paint and clean and sound then you can apply the Resene Summit Roof directly.

July 2014

Q. I have a large rumpus/living area with a ceramic tiled floor which has a slight texture to it, it's not smooth. The trouble is, the floor makes this room cold as it doesn't get much sun, and I don't like the colour of the tiles. Is it a good idea to paint this floor to at least change the colour? I would then put a large mat over the top for warmth. This seems a cheaper option that say, wooden floorboards. How would I go about painting this, and what sort of paint should I get? Is it likely to stand up to wear and tear?

A. Tiles can be painted but there is always a risk of adhesion issues over time which are determined by the amount and type of foot traffic the coated floor is subjected to. To follow is the standard Resene recommendation for painting tiled floors. Ensure the tiles are clean and free of grease and oil, then apply a coat of Resene Waterborne Smooth Surface Sealer and allow to dry for at least 48 hours with good ventilation and heating. Then apply Resene Quick Dry waterborne primer undercoat as the undercoat and finish with two coats of Resene Walk-On.

July 2014

Q. I have some Resene acrylic primer undercoat which I propose to use to cover some dark brown stain on skirting then repaint with white top coat. Can I use enamel or acrylic topcoat?

A. Resene Quick Dry waterborne primer undercoat can be topcoated with Resene waterborne acrylics, waterborne enamels and solventborne enamels.

July 2014

Q. I am after some advice on painting exterior porous brick please. We have purchased a house off the plan, but unfortunately the bricks were already ordered and so we cannot change them - they're a light 'almond' colour. We are considering having someone paint the bricks for us/doing it ourselves once we move in as undoubtedly our builder will add a margin to the work if we organise it through them. So I am wondering how much paint will we need? It's a 3 bed, 2 bathroom, 210 square metre house with a double garage door (that we wouldn't paint), 2 doors and 16 windows? What is the best paint to use, and what is the best way to apply it? Is there any special prep required for new bricks?

A. Given this the paint system would be a saturation coat in Resene Sureseal followed by two coats of any Resene exterior acrylic tinted to your selected colour. Paint estimation is not easy but for an average 3 bedroom home of around 200 square meters the amount of paint required is approx. 20 litres of primer and 60 litres of topcoat (two coats). This may vary for brick as the bricks are porous and do soak up more of the sealer and the profile across a wall is not smooth.

July 2014

Always make sure you read the product label and data sheet prior to application. If in doubt about any aspect of your project, please ask our Technical Expert for help or come in and see our staff at your local Resene ColorShop or Reseller.

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