If you are tiling onto plaster board with a ready mixed adhesive there is no need to primer or pva.
Tiling onto plasterboard.
How to tile over painted drywall.
Plasterboard is a very common indoor wall surface but is not suitable for tiling without waterproofing.
Purchase the joint compound putty knife primer adhesive and other materials needed to apply tile from a home.
Tiling onto plaster is relatively straightforward provided you have prepared properly and use the right tools and products.
Last edited by burnsy on tue jan 15 2008 10 07 am edited 1 time in total.
If you want to update your kitchen or bathroom walls with tiles you don t have to remove existing painted.
If you are using a cement based adhesive then use a primer as this will also help stop the adhesive recating with the gypsum in the plaster cheers.
Plaster is a weak material compared to brick and cement.
Tiling onto plaster backgrounds.
When applying tile to a plastered surface it is important not to overload the weight of what the plaster will take before failure occurs plaster will support about 20kg m2 or about a 9mm thickness of ceramic tile.
Tiling onto plasterboard walls.
Step 1 obtain materials from home improvement center.
Preparation for tiling onto plasterboard plasterboard should be dry securely fixed and rigid with no protruding fixings with the face to receive decorative finishes exposed.
Tiling over plasterboard involves adhering tiles to a paper surface and although this will present little problem in dry areas if the wallboard is subjected to moisture it may deteriorate causing failure.
Make sure you plan ahead to prevent any mistakes take care with your setting out and ensure the surface is clean dry sound and flat.