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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. We want to paint our newly built house using Resene Hermitage. Can you let me know what type of gloss would be good to use? We are painting on Shadowclad® board and batten.

A. We recommend the CoolColour™ version of the colour in either Resene Sonyx 101 (semi-gloss) or Resene Lumbersider (low sheen). For maximum CoolColour™ benefit apply the topcoats over Resene Quick Dry primer. The CoolColour version of a colour reflects more heat than the same colour made using non CoolColour technology. Resene Sonyx 101 will withstand a longer time of weathering before chalking occurs.

August 2017

Q. I am in the process of painting a child's high chair. I would like to use Resene Uracryl 403 as a finish coat because of its durability. I am concerned about the toxicity of that paint as to whether it would be suitable for that application? Would it be safe for children once it has dried hard please?

A. Once the Resene Uracryl 403 film is fully cured there are no significant issues associated with the use you intend. Allow to cure for at least two weeks in a well ventilated area before using.

August 2017

Q. I need a clear finish for a concrete block wall beside a swimming pool. What system should I use? It needs to be weathertight.

A. We recommend Resene XC-700.

August 2017

Q. I am repairing a MDF toy box, which I think has been powdercoated. What method and products can I use to prepare the surface for painting over? I've tried sanding, but it's taking a long time to get through the layers, and the surface is still too smooth for painting. I've had to sand back the toy box to remove chips in the paint, as well as get an even surface, in order to fill some holes etc.

Parts of the MDF box are dark blue with the rest white and I'd like to repaint it in Resene Tutti Fruitti, to match other projects I've done.

A. The following system would be our recommendation for a powdercoated surface:

Step 1: Thoroughly wash down with a 2% solution of Resene Interior Paintwork Cleaner concentrate and water to remove all dirt, grease, stains, dust and other contaminants. Rinse thoroughly with clean water. Allow to dry.

Step 2: For best results, thoroughly wet sand with 220 grit wet and dry paper to aid adhesion. Wipe down with a cloth and water to remove sanding debris.

Note 1: While sanding will give the best results, this can be omitted where contact with the painted surface is low frequency.

Adhesion primer: 1 coat of Resene Waterborne Smooth Surface Sealer, leave to cure for at least 48 hours before overcoating. Topcoat with two coats of Resene Lustacryl.

August 2017

Q. Can I have a technical specification for the coating of aluminium fences and gates for a project in Wellington? The aluminium gates and fences are to be fabricated by Heritage Gates.

I assume the paint will need to be Resene Uracryl and that the aluminium would need to be degreased and have an additional, protective coat applied as well.

A. Degrease using Resene Roof and Metal Wash diluted, and used to label/data sheet directions.

Spray Resene Armourcote 220 to achieve a dry film thickness of 75 microns, and then finish with a spray application of Resene Uracryl 403 to achieve the same dry film thickness.

August 2017

Q. Eleven years ago I put a corrugated iron roof on a shed. It has overhanging vegetation. I now want to paint it. Should I etch it with something, or can I paint it with one of your paints. And if so, what type of paint should I use?

A. You will need to cut back the overhanging vegetation, then clean the roof down using Resene Roof and Metal Wash diluted, and used to label/data sheet directions. If, after removal of the overhanging vegetation and brushing other debris off, there are signs of algae/mould/lichen then treat with Resene Moss & Mould Killer and again diluted and used to datasheet/label directions, and then clean down using the Resene Roof and Metal Wash.

Treat the ply with the Resene Moss & Mould Killer diluted and used to datasheet/label directions.

Prime the roof with Resene Galvo One, and then apply two coats of Resene Summit Roof paint. Prime the ply with Resene Wood Primer and then apply two coats of Resene Summit Roof.

August 2017

Q. I am planning a primary school project, which involves painting gumboots. What product would you recommend, that is also suitable for 7-8 year olds to use? It is an art based project and the boots are not intended to be worn.

A. Use Resene testpots for colour and you will need to prime the bare rubber with Resene Membrane Roofing Primer first. All products are waterborne.

August 2017

Q. I’m looking for advice on painting services lagging. We have Amarflex around pipes which are exposed to view for a portion of the ceiling.

A. Armaflex when exposed to weathering needs to be painted to protect the cabling from UV exposure. Any Resene waterborne paint can be used, for exterior it is usually an elastomeric paint such as Resene X-300E. For interior two coats of Resene Zylone Sheen will give the decorative finish and application by brush is the only practical way to apply the paint.

August 2017

Q. I am painting the inside of my home. I have oil based undercoat can I put water based paint over the top as my final coat?

A. Yes, Resene waterborne topcoats can be applied over Resene oil based undercoat.

August 2017

Q. Can I use Resene Zylone Sheen waterborne low sheen in a bathroom?

A. We don’t recommend Resene Zylone Sheen in a bathroom, as it is a standard acrylic. For a bathroom you need either a solventborne or waterborne enamel. We recommend Resene SpaceCote Low Sheen Kitchen & Bathroom (it’s a similar sheen level to Resene Zylone Sheen) for walls, Resene Lustacryl Kitchen & Bathroom for trim and joinery and Resene SpaceCote Flat Kitchen & Bathroom for ceilings.

These Resene Kitchen & Bathroom products have anti-bacterial silver and MoulDefender. Or you can use the standard versions of these products – Resene SpaceCote Low Sheen, Resene Lustacryl and Resene SpaceCote Flat.

If you prefer solventborne products, we have Resene Room Velvet (low sheen), Resene Ceiling Velvet (flat), and Resene Lusta-Glo (semi-gloss) or Resene Super Gloss (gloss).

August 2017

Q. We are thinking of using Resene Woodsman Whitewash over Strandboard® for the wall linings of our holiday home. Can you please advise what is the best method to apply this, how we should go about it and if it needs to be sealed after the whitewash has been applied?

A. Spray application will give the most uniform finish. Resene Woodsman Whitewash contains a low level of white tint and unless one is very careful, you can get an increase in the depth of white where roller overlap occurs. Finish with two coats of Resene Aquaclear over the Resene Colorwood Whitewash base colour. If you want a higher intensity of white, add Resene Colorwood Enhance White to one or both of the Resene Aquaclear coats.

August 2017

Q. I'm looking for an etch primer for cast aluminium boxes. These are Hammond enclosures generally, for guitar pedals. I have read a lot about window joinery in the FAQ but this is bare aluminium, and I will be covering it in a combination of testpots. Do I want Resene Vinyl Etch, Resene GP Metal Primer or something else? I will be spraying it on, 500ml is more than enough and I would prefer something white.

A. Degrease using Resene Interior Paintwork Cleaner following label directions then apply a thin coat of Resene Vinyl Etch primer.

August 2017

Q. I looked at a job which will be painting interior blockwork. I think they are called cinder blocks? They are about five years old. I will dust off the blockwork to try and remove any loose material. What's the correct paint method for carrying out this kind of work?

A. Cinder blocks have large random protrusions and if the tops are knocked off, this can reveal an open and porous surface and often cannot be filled with a paint system.

Based on the assumption that the blockwork is not glazed then the standard paint system for this would be a coat of Resene Concrete Primer and finish with two coats of Resene SpaceCote Low Sheen.

August 2017

Q. What paint can I use as an undercoat on a vinyl wall mural? What surface prep tips would be needed before applying?

I have been asked to paint over two large vinyl wall murals, to match the other existing non-vinyl walls, which are Resene Parchment. The vinyl murals are not to be removed, as I thought this would damage the plaster walls and that it would be faster to just overpaint.

A. The only product we have is Resene Vinyl Wallpaper Sealer which is designed to stop plasticiser migration from the vinyl into the waterborne paint layer. The system is not a clear system.

August 2017

Q. What preparation should be done if we are painting over already painted wallpaper? Is two coats of Resene Zylone Sheen Double Black White enough?

A. The paint needs to be cleaned using Resene Interior Paintwork Cleaner. Assuming the existing paint is a waterborne paint and not a dark colour then should be no coverage issues with two coats of topcoat like Resene Zylone Sheen applied with the recommended roller sleeve.

August 2017

Q. If we use Resene Colorwood on an OSB internal lining, how easy will this be to clean?

A. The application of a waterborne coating like Resene Colorwood to OSB will see a degree of fibre swelling (cannot predict the degree of) which will alter the factory level of smoothness. I usually always recommend topcoating with clears to reduce this.

August 2017

Q. Can I use Resene Lustacryl semi-gloss waterborne enamel exterior/interior as an undercoat for an indoor cupboard I want to paint?

A. Resene Lustacryl is always used over a primed substrate. The product is a topcoat only and does not have the features required to act as a primer or undercoat.

August 2017

Q. I am looking for paint for the new flooring in our house. We will put 12mm plywood on the floor (over existing particle board). We will paint the floor first with white paint and then we will apply a few layers of polyurethane. What Resene product is best to put on the plywood?

A. If you use a waterborne white paint, you can then overcoat Resene Aquaclear.

August 2017

Q. I am spraying Resene Waterborne Smooth Surface Sealer on aluminium as it is thin and doesn’t tack like solvent prime etch paints. Is that ok?

A. Resene Waterborne Smooth Surface Sealer is not recommended for spray application. It only requires a thin film to develop adhesion.

August 2017

Q. We are looking at painting our work bathroom and would like to use something different. We would like to use chalkboard paint, in a bright colour. Do you know if this is able to be used in a bathroom that can be damp at times?

A. You could use Resene SpaceCote Low Sheen.

August 2017

Q. I had a garage built a couple of months ago and want to paint the floor as soon as I can. Am I able to do this and what products should I use? I have heard that new concrete needs to be etched before painting and I’m a bit worried about the steel framing being harmed when I’m doing this or when rinsing afterwards.

A. Acid etching is rarely used now, you can prepare floor by diamond grinding. Your local Resene ColorShop should be aware of providers of concrete grinding service in your area. Then apply Resene Aquapoxy for flooring.

August 2017

Q. We have a painted brick home, approx 8 years old and 390m2. I want to investigate whether we can render the brick and/or repaint it to a deep charcoal. It is currently painted in a mid-grey paint that has some fading, but is in pretty good condition. It has no flaking or any other issues and I would like to know what preparation etc. would be required.

A. When changing to a much darker colour, there is always a chance that the heat associated with the colour change can cause the old paint to fail adhesively. The degree of failure is dictated by the number of existing number of coats and the original priming system.

Clean down using Resene Paint Prep and Housewash diluted and used to label directions, to give a chalk free surface. Then apply a full coat of Resene Quick Dry primer and finish with two coats of Resene CoolColour Lumbersider or Resene CoolColour Sonyx 101. The CoolColour™ system will reduce heat issues but we cannot guarantee that there will be no issues associated with heat.

August 2017

Q. We want to paint our gutters and downpipes. They are white PVC (plastic). Could you please tell me the best paint to use?

A. Use Resene Lumbersider or Resene Sonyx 101. Apply two coats directly on the clean substrate. If using dark colours, use the Resene CoolColour™ version of the colour.

August 2017

Q. I would like advice on what type of paint to use for a steel garage door which has been previously painted. We currently have a 'Lignite' colour on our guttering so would also be good to match this colour.

A. As a galvanised substrate, prime all bare metal with Resene GP Metal Primer and then apply two coats of Resene Summit Roof.

August 2017

Q. Is Resene Lumbersider somewhat flexible? Or can an additive be added to increase its flexibility?

A. Resene Lumbersider is based on a conventional waterborne resin system, the resin system is not classified as elastomeric. Resene Lumbersider is extensible but not elastomeric.

We cannot alter the film properties of Resene Lumbersider to create a truly elastomeric paint. Resene Lumbersider can be brushed, roller and sprayed.

August 2017

Q. I am looking to paint inside veneer panel doors, e.g. bedroom toilet etc. These would be dated around the 1980s and will be painted white. Can you please advise what preparation work is required and what is the best paint to use e.g. Semi-gloss, full gloss? I am also looking to repaint the door frames - should this be semi-gloss or gloss to match the doors?

The doors have a vanished look but are made of a wood veneer. They are not a solid wood door so may have a pre-engineered brown stain when made. As mentioned in my previous email I want to paint them white with the door frames to match.

A. Using Resene Interior Paintwork Cleaner ensure the surfaces to be painted are clean and free from grease, pay particular attention to hand contact areas.

Apply a thin coat of Resene Waterborne Smooth Surface Sealer and allow to cure without water contact for at least 48 hours before over coating. Then apply two coats of Resene SpaceCote Low Sheen. Roll all coats using the recommended roller sleeve.

The new paint system will take five days to develop good initial adhesion and continue to cure for an additional three weeks until full cure occurs. In the early stages the paint surface will not have good resistance to cleaners or abrasion as these features develop as the film undergoes curing.

August 2017

Q. We are getting renovations done, and are doing the painting ourselves. The builder has told us to prime the doors (external French doors) to protect them from weather before they install them. I understand that we may need to prime again so that the topcoats will stick as the primer can degrade. But my questions is how long will the primer act as a protection coat from the weather? Does it have to be painted with topcoats within a few weeks, or will it protect the wood from the weather/rain for several months until the weather gets warmer and drier?

A. It is about degree of weathering and primer type. We recommend Resene Quick Dry primer. When you come to topcoat check for primer chalking and then prep using Resene Paint Prep and Housewash diluted and used to label directions, then reprime.

August 2017

Q. Our home has Oamaru Stone as a cladding, can you recommend a product to kill moss and a sealer?

A. Use Resene Moss & Mould Killer diluted and used to label directions to kill moss. Then apply a saturation coat of Resene Solventborne Aquapel. To help control bio grow, apply Resene Deep Clean at the beginning of spring each year.

August 2017

Q. I'm writing in regards to a school project. It involves painting on wood and I need advice as to how/what to prime the wood with? After this we are going to apply colour paint from testpots.

I was also wondering what to use as a waterproof sealer/finish in order to protect the artwork and allow it to be hung outside.

A. Prime bare timber with Resene Quick Dry primer undercoat then apply two coats of testpot colour. Resene testpot colours are suitable for exterior exposure but for added protection for bright colours you can apply a coat of Resene Clearcoat UVS over the colours.

August 2017

Q. I'm painting over wallpaper. Can I use waterbased enamel or is it better to use oil based?

A. If it is a vinyl paper, apply a seal coat of Resene Vinyl Wallpaper Sealer, then two coats of a standard Resene interior wall paint such as Resene Zylone Sheen or Resene SpaceCote Low Sheen.

August 2017

Q. I currently have copper gutters that are green/brown and I want to paint them. What do I need to do to prepare the copper and can I paint over the gutters with exterior paint or do I need to prime it first?

A. The greenish look is copper verdigris which occurs as the copper ages. To paint, removal of the verdigris is required and depending upon the depth and age, this can be a real challenge. Scrub down the surface with a 1:1 dilution of white vinegar and water, using a Scotch Brite pad will be the easiest way but it requires a lot of effort.

Rinse clean with fresh water, then apply a primer coat of Resene Vinyl Etch and finish with two coats of any Resene exterior waterborne paint.

August 2017

Q. Can you please advise a suitable paint to use on new plasterboard board in lounge and bedroom areas? Also, what type of semi-gloss paint is required for door frames and skirting and what type of ceiling paint can be used in the bedroom, main areas and wet areas? The house is a new build.

A. For the new plasterboard board, apply Resene Broadwall Waterborne Wallboard Sealer then two coats of Resene SpaceCote Low Sheen. Use Resene Lustacryl as the topcoat for door frames and skirtings.

You can use Resene Ceiling Paint in all areas except wet areas and use Resene SpaceCote Flat as the topcoat for wet areas. We recommend that a coat of Resene Quick Dry waterborne primer undercoat is used as an undercoat over Resene Sureseal (Aqualine® sealer) for wet areas.

August 2017

Q. I require a paint specification for repainting an external electrical switchboard. It is currently a steel box with a powder coat finish.

A. Clean down using Resene Paint Prep and Housewash diluted and used to label directions, then apply a thin coat of Resene Waterborne Smooth Surface Sealer. Leave to cure for a couple of days, then apply two coats of Resene Lustacryl.

August 2017

Q. Can I paint an outdoor ceramic planter that is glazed on the outside?

A. Yes, ensure the glazed surface is clean, then apply an adhesion coat of Resene Waterborne Smooth Surface Sealer (note the product is not designed to give film build or opacity, the thinner the better) and allow drying for 48 hours, and then apply two coats of any Resene exterior waterborne paint.

August 2017

Q. I want to order paint but I am unsure which type to go for, please could you advise on which would be best? We are renovating our old motorhome. The new interior ply wall coverings have been painted with oil based primer. What paint type from Resene would suit best? It needs to be hard wearing and without odour, as we will be sleeping in there.

A. Apply a coat of Resene Quick Dry and then two coats of Resene SpaceCote Low Sheen. There will be a low odour but this should dissipate after 48 hours of good ventilation.

August 2017

Q. I have fibrous ceilings and have had my kitchen recently painted about a year ago. It is now peeling off in patches. The insurance is saying its workmanship. But I know the painter used the correct sealer and undercoat. This has happened in other rooms too. Some painters have said the fibrous reacts after many years because of what it was made of. Do you have any other reports of old ceilings doing this? What paint should I use?

A. The cause is probably due to the primer/sealer used for bare fibrous plaster. The Resene product for this is Resene Sureseal. Waterborne primers/sealer will not adhere to bare fibrous plaster.

August 2017

Q. I was dangerously exposed to 2 pot urethane foam about 40 years ago and was sensitised to the styrene. About 20 years ago I used a urethane varnish and had a moderate wheezing reaction using a proper filtered mask. I wish to brush paint some Aquaclear waterborne urethane varnish and wonder whether Resene is aware of it affecting old-fashioned urethane sensitised people. My reaction was extreme asthma like symptoms. I will use a mask and will be well ventilated but would like a practical answer, not a commercial take no risk approach.

A. Free isocyanate can cause sensitization which is seen as an asthma type reaction. However the sensitization only occurs if the isocyanate is inhaled as an aerosol. During spray application. There are a range of different isocyanate hardeners used each with a different sensitisation potential.

Resene Aquaclear is a low VOC (volatile organic compound) clear and contains no isocyanate in the manufacture of the resin or product so I see no reason why any isocyanate related reaction is possible with the product. The term urethane does not refer to isocyanate containing.

August 2017

Q. The paint on our exterior wooden window frames is crazy cracking after quite a few years. Is that because waterbased paint has been applied over oil based paint? I would like to repaint them with oil based paint so does that mean I will have to completely remove all the crazy cracking paint?

A. The effect you describe often occurs when a harder top coat is applied over a relatively softer base paint. Most often seen if traditional solventborne enamel is applied over a conventional waterborne paint. You will have to strip back to bare timber to repaint.

September 2017

Q. We are having an artist paint a 3m x 5m mural on a concrete block wall on a house - south facing - she spray paints it with solvent based paints. Currently the blocks are uncoated cinder blocks behind a tennis court. Firstly, what should I prepare and seal the wall with and secondly, what would I seal it with to protect once it is complete? I guess thirdly, what would I use to maintain it? I will put a metal flashing on the top of the wall.

A. Suggest that the block work is sealed with Resene Sureseal. Spray can paints are not that U.V. durable and we have no clear overcoat systems for this paint type in an exterior location to give UV and weather protection.

September 2017

Q. We used Resene Lumbersider low sheen to paint our exterior. There appear to be some water marks on the fascia board. However, after three coats of paint the marks are still quite visible. Is there any way to get rid of those marks?

A. The markings on the Resene Lumbersider are probably as a result of condensation. I suggest you try to remove it by washing with Resene Paint Prep and Housewash diluted and used to label directions. The other step would be to see if the colour is due to mould.

Do a test on an area with Resene Moss & Mould Killer diluted and used to label directions.

September 2017

Q. Some of my joinery has some scratches from renovation. Is it possible to paint it or touch up with any Resene paint to match the same colour?

A. We would need to see if the colour can be matched using a Resene colour. Then sand back the scratch, spot prime with Resene Quick Dry and then apply two coats of the matching colour.

September 2017

Q. We have a rusticated weatherboard, two storey macrocarpa home. It was painted over 20 years ago in Resene Lumbersider, in a red tone. We are now looking to repaint in Resene All Black; do we need to use an undercoat or primer first? The paint and weatherboards are in great condition still. The window frames and bargeboards are white.

A. When changing to a much darker colour, there is always a potential for delamination of the first coat, due to added heat stress. Apply a coat of Resene Quick Dry primer undercoat and then apply the two coats of the CoolColour™ version of the topcoat colour. Ensure the existing paint finish is washed down, using Resene Paint Prep and Housewash diluted and used to label directions.

September 2017

Q. I need to paint the inside of my new house which is bare plasterboard. What would be the best undercoat to use? Someone mentioned "high cover", is that something you sell?

A. Our standard system for DIY painting is a sealer coat of Resene Broadwall Waterborne Wallboard Sealer and then two coats of Resene SpaceCote Low Sheen or Resene Zylone Sheen for non-wet areas. For wet areas e.g. bathrooms, apply a sealer coat of Resene Sureseal to the bare Aqualine®, then a coat of Resene Quick Dry and two coats of a Resene Kitchen and Bathroom waterborne enamel, such as Resene SpaceCote Low Sheen Kitchen & Bathroom.

September 2017

Q. Which paint can I safely use to paint my baby's cot?

A. Any Resene Environmental Choice paint may be used, such as Resene Lustacryl semi-gloss waterborne enamel. Leave the paint system to cure for at least two weeks then wipe down with warm water and a cloth before placing into service.

September 2017

Q. I have a red brick house and I want to paint it this coming summer. What paint and sealer/undercoat do I need to use for this? The bricks are not glazed.

A. If there is any areas of moss/mould/lichen, treat these with Resene Moss & Mould Killer diluted and used to label directions. Then scrub down using Resene Paint Prep and Housewash diluted and used to label directions and leave to dry.

Apply a primer coat of Resene Concrete Primer and finish with two coats of Resene Sonyx 101 (semi-gloss) or Resene Lumbersider (low sheen). If using dark colours, we recommend using the Resene CoolColour™ version of the topcoat colour.

September 2017

Q. We have just renovated a bedroom for the baby we are expecting in November. What would be the best undercoat to put straight onto the plasterboard? Also, is there a specific ceiling paint we should be using? We would like to keep the theme of wood and white throughout our house, as we have native wood (which we will keep around the windows, skirting and scotia). We quite like the colour Resene Alabaster or a shade of it, but are yet to try a testpot of the colour in the room. Is there something in Resene paint that will deter flies from pooping on it?

A. Paint bare plasterboard with Resene Broadwall Waterborne Wallboard Sealer then Resene SpaceCote Low Sheen. Use Resene Ceiling Paint for the ceiling. Resene Fly Deterrent can be added to the ceiling paint; it is a deterrent but contains no active to kill flies. Its efficacy will diminish over time.

September 2017

Q. What is the hardest wearing semi-gloss, for interior window and door frames?

A. Resene Lusta-Glo solventborne enamel.

September 2017

Q. Our painter has purchased a flat ceiling flat from Resene Albany in Resene Pearl Lusta and it appears to have a slight sheen in it. This is something we have never come across before. We will leave it over the weekend to see how it settles.

A. If it was Resene Ceiling Paint then after a few days it should dry to a flat finish.

September 2017

Q. I have a painted block wall in my basement that also forms a retaining wall. The paint has bubbled in places. If I scrape off the bubbles, can I then use Resene HydraBlock to waterproof the wall, before repainting or can it only be applied to bare concrete block?

A. Resene HydraBlock is designed for direct application to bare concrete/cementitious substrates only.

September 2017

Q. Does Resene have a clear, breathable sealer for blockwork? How long between recoats and would it make the masonry look wet?

A. The best product to meet most of what you require is Resene Solventborne Aquapel. However, the product is a water repellent treatment only and will not render the surfaces weathertight.

September 2017

Q. I am about to repaint some old totara posts. What should I use for this, and would it be a similar system to that for cedar?

A. Resene TimberLock yes, but then Resene Quick Dry as the primer, as oil based paints will not dry over totara timber. Wipe excess Resene TimberLock off at time of application, and then leave to dry for at least 48 hours before applying the Resene Quick Dry.

September 2017

Q. We have cedar wooden garage doors that need some attention! Obviously we need to sand them before we coat them. What would you suggest using? We want a natural wood/timber style finish.

A. If there is no signs of mould/algae present, then scrub down with Resene Timber and Deck Wash diluted and used to label directions. Then apply two coats of Resene Woodsman Wood Oil. Note this will need regular recoating (usually every two summers).

September 2017

Q. How soon can I paint X-200 or a similar paint, over exterior sand/cement plaster? Not a critical situation, it is a foam insulated plinth detail on a concrete slab edge, below a concrete block wall.

A. Resene LimeLock should ideally be applied as the new plaster is touch dry. You can then apply the Resene X-200 over the primed surfaces; colour will determine how soon the topcoats can be applied.

September 2017

Q. I am very tired of interior paint finishes these days, that mark very easily and cannot be cleaned (I am talking paint on new plasterboard). The paint appears to be almost, chalk like and every touch marks it. Surely you can get a quality acrylic wall paint that has a strong surface that one can wipe without causing smudges and shiny patches? What does Resene have that I can use on a new build that is very low to no sheen?

A. The move to very low gloss level paint finishes is one of the main reasons why painted surfaces, subject to cleaning and touching, can mark easily.

When a flattish paint is wiped, there can be burnishing, which is a polishing effect that is due to the flatting pigments, used to make the low gloss paint and the relatively, low amount of resin binder in these paints.

If the application conditions are outside of the ideal for curing of a waterborne paint, there is the possibility of surfactant leaching, which is a partitioning to the surface, of wetting agents required for film formation. When an area is wiped down, the surfactant layer is removed and when dry, can been noticeable as a differing gloss level from the surrounding areas.

For a low sheen waterborne topcoat, Resene SpaceCote Low Sheen will give the best chance of giving you a paint that has the features you are seeking.

September 2017

Q. Do you have a flat, matt, eggshell or low sheen finish for wooden furniture?

A. We do make two products that can be used for this – Resene SpaceCote Low Sheen and Resene SpaceCote Flat. Both have been used by many customers to finish wooden furniture. Resene ColorShops stock both products and they are available in thousands of colours.

September 2017

Q. I have a painted concrete deck and path. The previous owners painted it with a lighter colour, which has flaked and worn off in places. I have waterblasted to remove this flaking paint and expose the original darker colour. Could you please advise the appropriate products to repaint with? I would like to repaint with a charcoal colour, which was the colour it was originally painted.

A. We have two products that would be suitable, depending on the surface finish you are requiring. Resene Resene Non-Skid Deck & Path and Resene Walk-on. These are both based on tough, flooring grade, acrylic resins.

If the substrate already has a significant texture and you are not looking to add to that, the use of Resene Walk-on will be perfect, as the texture will telegraph through.

If the substrate doesn't have a lot of texture and you want to add to this, then Resene Non-Skid Deck & Path should be used which contains an aggregate, to give non-skid properties.

September 2017

Q. Steel RSJ coated with lead based paint. Which system should be used to contain and finish without stripping?

A. The lead will be contained within the primer, so as long as that primer has good adhesion to steel substrate, then there should be no issues with release of lead into the environment. The key is that if any lead based paint flakes are removed from the surface that all efforts are made to contain this, as per the attached OSH guidelines.

If this is an exterior, any bare areas or corrosion should be spot primed with Resene Armourzinc 120, followed by two coats of Resene Uracryl 403 (a test patch should be done to confirm compatibility with existing product).

If this is an interior, spot prime any bare areas of metal or corrosion with Resene GP Metal Primer, followed by two coats of Resene Lustacryl (a test patch should be done to confirm compatibility).

September 2017

Q. I want to paint a kitchen and bathroom vinyl lino floor. I've been recommended Resene Enamacryl (with Resene Sureseal sealer) or Resene Uracryl or even Resene Walk-on paint. Can you please tell me which one is the best to use?

A. The recommended system would be one of coat of Resene Waterborne Smooth Surface Sealer and two coats of Resene Walk-on.

September 2017

Q. Do I need to use primer or undercoat between a coat of Resene Broadwall Prep & Seal and Resene SpaceCote Low Sheen?

A. There is no primer needed between Resene Broadwall Prep & Seal and Resene SpaceCote Low Sheen.

September 2017

Q. I would like to paint a caravan canvas awning. What paint would I use? What preparation would be necessary and would the paint stand up to being in a windy environment? The awning is permanently up.

A. We do not have a purpose built system but you could try this: three coats of Resene Lumbersider, with the first coat thinned out 15% with water. Canvas can have a hard time accepting coatings.

September 2017

Q. What is the best way to paint over a stippled ceiling?

A. Generally the most straightforward painting method is brushing and rolling. It is possible to spray ceilings, if you have the appropriate equipment and are practised in spray painting.

September 2017

Q. I have an octagon table that is cleaned and sanded, ready for painting. Originally I was going to stain it, but I am now wondering about painting it a bright colour. How does this go for wear and is application easy?

A. Assuming the table is timber, for painting the table, apply a coat of Resene Quick Dry waterborne primer undercoat. Then apply two coats of Resene Lustacryl semi-gloss waterborne enamel. Roll all coats using the recommended roller sleeve.

The new paint system will take up to a month to fully cure. In the early stages, the paint surface will not have good resistance to cleaners or abrasion, as these features develop as the film undergoes curing.

September 2017

Q. Could Resene Aquapoxy for flooring be used on a kitchen floor, in a residential setting?

A. Resene Aquapoxy is a great option for a residential kitchen floor. The recommended system would usually be one coat of Resene Aquapoxy thinned down 10% with water and two coats of Resene Aquapoxy at the normal spreading rates (as per data sheet).

September 2017

Q. I want to paint some plastic garden pots, what paint should I use?

A. Polyethylene and polypropylene are exceptionally difficult and even special adhesion promoted primers do not develop what would could be considered good adhesion. For this reason we don't recommend painting these types of plastic.

Unplasticised PVC can be painted directly with our waterbased topcoats like Resene Lumbersider or Resene Lustacryl. Dark colours should be avoided to prevent warping.

September 2017

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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