Sealing Plaster Walls For Tiling

You want the tile adhesive to have something to grab onto.

Sealing plaster walls for tiling.

I d just stick the tiles on nix though i would key the plaster with sand paper i normally tell customers to leave fresh plaster for a week if painting then to apply a thinned out undercoat they all nod but as soon as it looks dry the paint is on the wall. 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. Sand with a medium grit sandpaper to create a uniform surface that s not too smooth. Bear in mind that raw brick blockwork and cement are mostly uneven.

Seal the walls with a skim coat and let it dry thoroughly. Tiling onto plasterboard walls 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. It should be a minimum 12 5mm thick when fixed to timber framing or battening and fixed in accordance with the manufacturers recommendations. Make a mark on the wall with your starting point.

Plaster is a weak material compared to brick and cement. 1 paint over area with watered down matt emulsion 40 water 60 paint 2 cover area with watered down pva glue. You should allow the new plaster to dry for 4weeks prior to tiling but this will depend on thickness of plaster and temp of room. Tiling onto plaster backgrounds.

What is the best option to prepare newly plastered walls for tiling. Fresh plaster takes up to 30 days to dry and wooden surfaces can use a layer of polyurethane paint.