Note to Self: PVA Ain’t Wallpaper Paste

[FAILFAST]

Thought I’d mastered the art… until today.
Planned to skim over some hardwall I floated yesterday (Didn't have time for sameday). Gave it two light coats of PVA, then a 50/50 for luck.
Came back, gave it the ol’ tacky test… and the bloody PVA started peeling like sunburn. Too strong!
Cue panic, bucket of water, and some frantic wall-washing.
Managed to save it and re-pva, but after 16 walls and ceilings, this one definitely humbled me

 

[Stevieo]

Thanks for letting us know

 

[Cockney]

Ffs!

 

[paulf]

Ffs!

It's that bloody PVA again.

 

[bobski]

Thought I’d mastered the art… until today.
Planned to skim over some hardwall I floated yesterday (Didn't have time for sameday). Gave it two light coats of PVA, then a 50/50 for luck.
Came back, gave it the ol’ tacky test… and the bloody PVA started peeling like sunburn. Too strong!
Cue panic, bucket of water, and some frantic wall-washing.
Managed to save it and re-pva, but after 16 walls and ceilings, this one definitely humbled me

Two pissy coats over hardwall for me.

Skims nicer with a bit of pull from the backing coat.


Also the gypsum (crystals) lock to gypsum better than trying to use the pva as the main keying/binding agent.

 

[essexandy]

I've skimmed loads of Hardwall and Browning the following day without wetting or PVAing the walls. You get a great finish, very quickly with higher suction.