Acrylpro professional ceramic tile adhesive is a professional acrylpro professional ceramic tile adhesive is a professional formula adhesive with high bond strengths.
Tile adhesive painted walls.
For large tiles only a flexible tile adhesive like webercol flex should be used.
You can leave the paint on drywall provided there are not several coats and the tile epoxy will adhere with no problem.
If the substrate is non porous porcelain tiles etc priming is highly recommended with webercol prime.
You want the tile adhesive to have something to grab onto.
Mix and apply the selected tile adhesive with a suitable notched trowel.
Seal the walls with a skim coat and let it dry thoroughly.
Thoroughly vacuum the area and give the wall a once over with a damp sponge or cleaning cloth.
If the walls you want to tile are concrete walls with paint on them remove the paint before you install tile so the tile adhesive has something to grab onto and hold the tile in the correct place.