How do I clean my Exterior walls before painting?
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How do I clean my Exterior walls before painting?

Firstly you need to clean the wall you want to paint. Use a cloth or duster to remove any dust or dirt that may be on the surface, as the dust will mix with your paint and create an uneven surface. 

Thereafter, check whether these walls have mould. Mould needs to be removed by washing the mouldy areas with JIK or Sugar Soap. Leave the JIK or Sugar Soap for approximately 4 hours to ensure that it penetrates the mould. Wash the entire wall down with clean water. 

  • Always ensure that your home is well ventilated to prevent mould from forming, especially Kitchens and Bathrooms. 

Check for flaking or peeling paint. If your wall has loose paint on, adding another layer of paint onto an already peeling layer of paint, will not make the new layer of paint stick to your wall. First remove all the loose particles with either a high pressure washer or sand down with a sander or sand paper. These areas need to be filled with an All Purpose Crack Filler or replastered and then primed with Paint Master Water Based Plaster Primer first before painting the top coat. If there are numerous patches on the wall, it would be beneficial to prime the entire wall to avoid patches or uneven areas.

If there are any cracks or holes in the wall, first fill these with an All Purpose Crack Filler. These filled areas need to be sanded once dry to ensure that these areas are even and can be painted with a Paint Master Water Based Plaster Primer first before painting the top coat. If there are numerous patches on the wall, it would be beneficial to prime the entire wall to avoid patches or uneven areas. 

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