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Painting concrete blocks / blockwork


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.

How to paint concrete blocks / blockwork

Note: Refer to the PDF flowchart for a visual of the steps below:

  1. Refer to appropriate preparation chart

  2. Is waterproofing an issue?

    1. If No:
      1. Apply 2-3 coats of Resene Sonyx 101
      2. Alternatively, apply 2-3 coats of Resene Lumbersider
         
    2. If Yes:
      1. Apply 3 coats of Resene X-200

AquapelWe often get requests for a clear finish on blockwork and concrete and while it is possible to apply Resene Multishield+ (now Resene Concrete Clear), Resene F-10 Glaze or Resene Uracryl clear directly to blockwork it may be problematic. This is because any moisture that gets trapped behind the clear film will make the film cloudy. This effect will disappear as the surface dries. Because none of these products are applied thickly enough and blockwork has so many holes and voids it is inevitable that this will occur.

The best solution is to ensure the pointing (the plaster between the blocks) is of a high standard, ideally with added water repellent, and then saturate the wall with Resene Aquapel.

Concrete blocks and blockwork

Things to consider

Concrete blocks / blockwork

Key accessories essential to complete the job

Add-ons – to make the job easier or quicker

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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.