I asked this question some time ago, then was unable to do any think for some
time. Now I can`t find the answer. So, I have an artexed plasterboard ceiling
which I want to skim. I have knocked of the high bits and applied one thin
coat of pva. I will then apply a thicker coat of pva just before I skim it. If
I have to do a second skim, do I have to pva it again or scratch it, or do I
just apply the second skim strait onto the first.
You will have to do (at least) 2 coats on an uneven
artex base. The first gives you a flat surface, level
with the remaining artex peaks, but cannot be polished
due to those peaks. The second clears the peaks and
can be polished.
You apply the second straight to the first providing
it's still wet, and ideally not fully set yet. If
you have let it set and dry, you will need to PVA it
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