Help!
I need to install tiles with faux brick design on the chimney behind the stove.
The chimney is painted with lime or plaster paint.
It leaves a chalky residue on your hands if you rub your hand over the surface.
1. The paint must be removed before tiling to ensure good adhesion, right?
2. What's the easiest way to remove it? Chisel/hammer and finish with a wire brush?