Pva on hardwall

Jambo

New Member
Evening all. Why is it that pva doesn't seem to work on hardwall that's been applied and allowed to fully dry out. I gave a couple of walls at least 3 full coats (not neat pva, but hardly watered down) tonight and it still had me in a flap! Got there in the end though (emergency sponge floating to the rescue)
 
I couldn't turn round a set straight away. I'll give the wall a water soaking next time or bust out the sbr.
Cheers gents
 
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