Painting & Decorating Question

Should first coat of paint on freshly plastered ceiling be watered down?

Can I paint my fresh plastered ceiling? The man who plastered it said the 1st coat has to be watered down, is this true ?

2 Answers

Yes first coat on Plaster should be watered down approximately 50/50 if you use quality emulsion (Dulux / Crown) for example. For cheaper paint 60% paint 40% water.

Answered 25th Sep 2013


Member since 16 Jun 2008

Yes he is correct, the 1st coat should be thinned with water, depending on the quality and thickness of the paint IE: Dulux, Crown is quite a thick paint and will need to be diluted by up to 50% or more.
So only dilute enough to cover the new area plastered, it's called a mist coat, this will then act as a primer for the remaining 2 coats which again if Dulux or Crown will require 10% of water.
If you don't thin down the 1st coat and it is applied too thick it WILL flake and peel.
Hope this is of use, I used to lecture painting and decorating at the local college.
Feel free to ask any questions.

Best Wishes

Answered 26th Sep 2013

A.M.H.Quality Building.

Member since 18 Jul 2013

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