Preparing set hard wall for skim coat

20 Feb 2014
Reaction score
United Kingdom
I've plastered a wall with hard wall and let it dry (2 days) and I'm wondering if I need to PVA it to stop the suction before putting the skim coat on?

I've now read up and seen you should do the undercoat and skim same day, but unfortunately this is an evening project for me so didn't have the hours to get it all done.

Cheers for your advice.
Sponsored Links
Yes you will need to pva the wall to seal it, i'd even put 2 separate coats on, one now, then one a few hours later,, just to make sure the suction's gone.
Once you've sealed it, let it dry, then "pva it again", but this time, "skim onto it right away" while the pva is still wet/tacky.
As you said, you would normally coat and skim the same day,, much easier to do , but sometimes things don't always work out that way. ;)
Sponsored Links

DIYnot Local

Staff member

If you need to find a tradesperson to get your job done, please try our local search below, or if you are doing it yourself you can find suppliers local to you.

Select the supplier or trade you require, enter your location to begin your search.

Are you a trade or supplier? You can create your listing free at DIYnot Local