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how to stop plaster going off so quick it cracks
Posted: Fri Jul 13, 2007 7:35 pm
by whiterose
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:
Posted: Fri Jul 20, 2007 3:47 pm
by rhys
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.
control the suction
Posted: Thu Oct 04, 2007 10:38 pm
by lee_007
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
Posted: Mon Oct 08, 2007 11:10 pm
by raymondo
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.