cracks in newly applied browning


Postby tigger17 » Fri Jan 01, 2010 12:47 pm

Hi, I have a 1930's house and in the process of redecorating the spare room. I am repairing some large holes (back to the brick work) initially with browning but one of the areas I have plastered has developed lots of cracks, like crazy paving. I did a short plastering course a few years ago but haven't really done much since and I'm sure the cracks mean something has gone wrong and I need to do it again, but I don't know why it has cracked like this.
Can anyone tell me? I don't want to make the same mistake again. Thanks.
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Postby rosebery » Fri Jan 01, 2010 10:56 pm

Substrate too absorbent and has drawn the water out of the plaster before it got a chance. Did you treat with PVA first?

Cheers
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Postby chris_on_tour2002 » Tue Jan 05, 2010 12:18 am

other possible causes are that the browning was applied too thick and/or it has dried out too quickly.
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