hi,
in my kitcken i had an artex ceiling which i wanted flat.
i removed the high spots on the artex and sealed with pva.
the ceiling was very uneven so i used thistel bonding (after applying
pva) to level it, keyed it and left it to try as i was too busy to skim
straight after.

the plaster has bonded very well to the ceiling but now nearly a week
on i am wondering before i skim with multifinish should i seal the
undercoat with pva. then skim over a tacky pva solution?

should i not seal the undercoat and just skim over tacky pva?
its quite a large ceilng how long will the pva stay tacky for?

ive quite new to plastering so any advice would be great! i really dont
want the skim coat to fall off.

In article om,
"sterling" writes:
the plaster has bonded very well to the ceiling but now nearly a week
on i am wondering before i skim with multifinish should i seal the
undercoat with pva. then skim over a tacky pva solution?

Yes, because you allowed the bonding coat to set and dry.
It's effectively a new reskim. If the bonding coat surface
is rough throughout so there's a good key, then just a sealing
coat might be OK.

should i not seal the undercoat and just skim over tacky pva?
its quite a large ceilng how long will the pva stay tacky for?

Even when it no longer feels tacky, wet plaster will make it
tacky again for quite a while before the PVA sets solid.

--
Andrew Gabriel

thanks i will try this weekend. will seal first then skim over tacky
pva. hope this bonds well.