Stripping PVA and masonary paint for exterior wall?

Here's the lowdown...

I rendered my garden wall to a smooth finish, then PVA'd it, then painted it with Leyland exterior masonary paint. The big mistake was PVAing it! Not allowing the wall to breathe through the paint layer and dry out after a wet spell. The result... large clusters of bubbling as parts of the PVA coating has laminated away from the render. The problem... getting the whole wall stripped, including areas where bubbling hasn't occurred and the paint layer is stuck fast to the render... I have tried scraping and sanding and even a blowtorch! Next step jet wash?

I'm worried that if I don't get it all off it will continue to blister, even when I've repainted!

Any suggestions to me getting this all off? Some kind of PVA eating solvent?

Many thanks, dean.

Reply to
deano
Loading thread data ...

Ordinary PVA softens with long exposure to water.

Reply to
Andrew Gabriel

Wallpaper steam stripper?

Reply to
Rednadnerb

sorry been away... So does a jet washer sound like a viable method? I can't otherwise see how I could soak the wall. Maybe connect my jet washer up to the hot water tap and the rear of my house (use this for washing the dog!)

Reply to
deano

Yeah, you'd think it would, but I tried and it didn't... thanks for the suggestion though.

Reply to
deano

Pressure washer should strip. Use high power close. It will take ages. Or get a grit blasting company to strip it.

Reply to
The Natural Philosopher

Or see the current "bitumastic paint on brick" thread

Reply to
Stuart Noble

That's a great link...

formatting link
've contacted them to see what they have in the stripper department. Thanks.

I know it will take ages for the jet washer to do the job, I will however consult a friend who does sandblasting and compare his price against that of buying the stripper and doing the graft.

Reply to
deano

IME the graft isn't too bad, you just need a *lot* of stripper

Reply to
Stuart Noble

HomeOwnersHub website is not affiliated with any of the manufacturers or service providers discussed here. All logos and trade names are the property of their respective owners.