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Do You Need To Seal New Plaster? [Solved]

You first need to seal new plaster to make it less absorbent and to help the topcoat adhere better. A common way to seal it is with watered-down emulsion (known as a mist coat), as the plaster sucks up the water and becomes less absorbent.10 Jun 2017

How to seal plaster PVA or paint ?

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How to Paint New Plaster - a Complete Guide

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Tommy’s Trade Secrets - How To Paint Fresh Plaster

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