How to paint over oil-based paint

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17 Jun 2013

A Property24 reader asks:

A reader says he repainted his home but the new, water-based paint, which he applied over an old coat of oil-based paint seems to come off easily.

I recently repainted my home using a coat of Double Velvet over Velvaglo. The problem is that the new coat seems to come off easily, especially when I scratch my nail over it. What should I do?

Donovan Bezuidenhout, Plascon's Training Practitioner, advises:

Velvaglo is an oil-based paint with a sheen, and water-based paint such as Double Velvet does not adhere to oil-based or sheen surfaces.

You would need to remove the Double Velvet with RemovALL All Purpose paint remover. Wash the walls down with Polycell Sugar Soap and then wipe them clean and allow them to dry.

From there apply one coat of Plascon Universal undercoat and allow 16 hours to dry.

Apply two coats of Double Velvet with a drying time of four hours in between coats.

Please note that this time of the year drying times tend to be slower due to the moisture levels in the air.

Double Velvet is suitable for bedrooms, living areas and passageways.

Readers may submit questions to Property24’s Guest Expert panel and/or comment below. We may not be able to answer all questions received, but all will be considered. 

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