very dry wall

[henry]

I get this a lot on houses built in the 1970.s on re skims when the wall paper has been taking off it lifts the skim coat off. The render
is so dry it's hard to find anything which will control the suction on the render , pva a waste of time at present am giving it a coat of
sbr leave over night then pva as normal ready to skim.

 

[superspread]

Answered your own question Henry

 

[superspread]

Personally I'd go for the grit

 

[johniosaif]

I just pva ,never had this problem, advantage of sbr is ? The waterproofing part?

 

[henry]

I can only think over the years the render is so dry from pvc windows and central heating. , I did a bathroom last week and on one wall which had the problem off patches of skim blown from the render, so when I re skimmed on these patches was small craze cracking on my first coat yet the top finish coat
is ok .

 

[Gibbo]

Thistle gyprime henry

 

[zombie]

I find a 50/50 mix with backing coat on the first coat also helps on these jobs:RpS_thumbup:

 

[lucius]

Stabiliser then PVA

 

[Fatarm]

Stabiliser then PVA

Yep.:RpS_thumbup:

 

[kebab king]

Weak pva then Artex sealer before you skim.

 

[Casper]

I just knew you were gonna mention artex sealer mt. I think you must have shares in it ffs lol

 

[kebab king]

Just like u and rust.Lol

 

[Fatarm]

Artiseal....different make ...same as imo:RpS_biggrin:

 

[jamesthefirst]

Stabiliser then PVA

Yes I agree with this or just one coat of Betakontakt

 

[Fourplastering]

Artex sealer, get it all done ssme day.