Resene Popular Paint Systems –
Concrete, plasters and cement-based substrates: training notes
This web page is an edited version of the Resene Best System Selling training notes provided to Resene staff and is provided to enable you to gain a greater understanding of the substrates and paint systems you may encounter in your decorating project. It is impossible to cover all decorating scenarios in a single document, so if you are in doubt about any aspect of your project please contact Resene for assistance.
Select the substrate you will be painting from the list below to view how to prepare and finish the surface.
Topcoat systems flowcharts
Note: Refer to the PDF flowchart for a visual of the steps below:
Treat moss and mould with Resene Moss & Mould Killer
Thoroughly wash using Resene Roof Wash and Paint Cleaner
Spot prime any bare flaked or cracked areas
Fill cracks and voids:
Refer to topcoat systems flowcharts
Typically repainting a sound paint system that has been applied over a cementitious surface is straightforward, because the substrate is inert and doesn’t usually cause any stress on the paint, unlike substrates like timber. As a result there are generally only three areas that need addressing:
i) Mould and moss will need to be killed and removed – use Resene Moss & Mould Killer.
ii) While the surface may be power-washed it is easier to clean using Paint Prep and Housewash. This is much more effective at removing surface chalking (old oxidised paint) from the old paint than waterblasting.
iii) Any cracks or holes that need filling may need either an application of Resene Brushable Crack Filler or a suitable filler, such as Selleys Masonry Filler.
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Colours shown on this website are a representation only. Please refer to the actual paint or product sample. Resene colour charts, testpots and samples are available for ordering online. See measurements/conversions for more details on how electronic colour values are achieved.