Sealing Plaster Walls For Tiling

Fresh plaster takes up to 30 days to dry and wooden surfaces can use a layer of polyurethane paint.

Sealing plaster walls for tiling.

1 paint over area with watered down matt emulsion 40 water 60 paint 2 cover area with watered down pva glue. Ideally the wet areas should be tanked you can tile straight onto the plaster unless the surface is highly polished then it should be brushed with a stiff brush and primed with something like bal apd or dilute sbr. It should be a minimum 12 5mm thick when fixed to timber framing or battening and fixed in accordance with the manufacturers recommendations. 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.

Sand with a medium grit sandpaper to create a uniform surface that s not too smooth. What is the best option to prepare newly plastered walls for tiling. Tiling onto plaster backgrounds. 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.

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. 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. Bear in mind that raw brick blockwork and cement are mostly uneven.

Make a mark on the wall with your starting point. You want the tile adhesive to have something to grab onto.