Quote:
Originally Posted by Allworth
From my little decorating experience roughness after painting is 90% the same as before painting i.e. if there are any cavities, they will remain after painting. As for sticking a primer on residue this should work.
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Agree, and on this point - looking at the peeled paint on the plasterboard; i would lightly sand that down to make sure the paint edges are 'feathered' or blended as much as possible.
If you were to paint straight over it, you will see some slight ridges.