Hiya guys,

I wish I had come to this site sooner and not listened to my plasterer who advised me to apply a coat of PVA before painting newly plastered walls. Unfortunaltely, I have already PVA'd the walls by watering it down and applying it onto the walls.

I was wondering if I can just apply mist coat onto the top. Any suggestions would be appreciated.

Thanks.

Don't know what the offical word is, but it gets right on my tits when people use PVA when plastering.

When you come to mistcoat the paint just sits on top of the PVA and paint never seems to stick right.

Recently had the exact same thing - I used a stainblocker (Zinser BIN) which as I understand is a bit of the old overkill in terms of solution. Put that on top 50 minutes later paint stuck to it like it normal. It stinks though, although I don't know what else you would use product wise. Even the "undercoat / stain blocker" stuff I had didn't stick before I used that.

BG

Plasterers must advise sealing with pva for a laugh at the decorators expense.

Id love to meet a plasterer that has actually seen a professional decorator priming new plaster with pva prior to painting with emulsion.

Its up there with the other myths.

Errr....I didn't see HE had put the PVA on!!!!!!

wasn't having a go at you billygoat btw.

Just the thought of a plasterer advising customers on painting lol.

didn't think you was to be fair

The worst problem of this type is when the plasterer gets loads of splashes of PVA on a freshly plastered wall which has yet to dry out. This means that the PVA will not bond to the plaster and will bubble up and come away when it is emulsioned. Needs to be treated to some solvent based paint such as stain block, but it is often hard to spot until its too late.

I would suggest suing the plasterer, for giving you totaly incorrect advise.