Painting the house and in several rooms where I’ve used filler - once sanded down when I come to undercoat the filler is lifting off on the roller ...
could the previous paint be an oil based paint or not? if so is the solution to coat the wall with one of the Zinsser products and if so which or are there any other suggestions as to what it could be ?
Many thanks
could the previous paint be an oil based paint or not? if so is the solution to coat the wall with one of the Zinsser products and if so which or are there any other suggestions as to what it could be ?
Many thanks