DIY Doctor

how to stop plaster going off so quick it cracks

Postby whiterose » Fri Jul 13, 2007 6:35 pm

hi there did a re skim the other day and soon as i put the plaster on the wall it went off and started cracking? :oops:
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Postby rhys » Fri Jul 20, 2007 2:47 pm

apply pva mixed with water just before skimming a wall it will provide a key for the plaster, give you more working time and create an even suction background.
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Postby lee_007 » Thu Oct 04, 2007 9:38 pm

In addition to PVA, you can also wet the wall a bit prior to plastering. The cracking is the quick loss of moisture out of the plaster. Lee
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Postby raymondo » Mon Oct 08, 2007 10:10 pm

i am a plasterer by trade, and the best results are by first apply a sealer coat of 1:4 pva to water, allow to dry completely then apply a tack coat of 1:2 pva to water..allow to partially dry then skim.
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