Repairing Plaster Before Tiling Walls

New plaster work should be fully dried before tiling work is commenced this drying time varies upon temperatures but can take up to 4 weeks before fully cured.

Repairing plaster before tiling walls.

A second coat may be required of compound. Thoroughly vacuum the area and give the wall a once over with a damp sponge or cleaning cloth. Gypsum plaster based products and cement products do not get on with each other and can cause. Wear a mask and googles during this process.

So long as there is no loose material or damp patches then the wall should be able to take adhesive or plaster. Just give the area a clean down to remove any dust etc then spread an even layer of tile adhesive over the damaged area with a trowel. Leave it to dry overnight if you want then tile away. Plant washers about 8 to 12 inches apart on both sides of the crack.

Adhesive grout and tile 20kg max weight onto plaster. Cross scratch the first coat as it begins to set to allow the second coat to adhere well. Sand with a medium grit sandpaper to create a uniform surface that s not too smooth. The screw pulls the lath against the plaster s back side while the washer gives the screwhead a wide clamping surface.

You could plasterboard over the top but you d make the room and window opening smaller. Apply the plaster mix to the damaged area apply the mixture with the 10 wallboard knife and spread a 1 4 inch layer over the hole. Also now it s been plastered you will be restricting yourself to a tile with a max weight of about 16 kg m2. Don t use paint glue pva wall paper paste only use the primer recommended by the adhesive manufacturer of your chosen tile adhesive.

Whats the best way to diy fix this wall before tiling. Slip a 2 inch plastic washer over a 1 5 8 inch drywall screw and drive it into the lath through one of the adhesive filled holes. Once the joint compound is dry usually 24 hours sand the rough spots using drywall sanding sponge or drywall sanding paper. If needed apply drywall plaster tape to the wall to fill in larger bumpy areas.

Allow time for the joint compound spackle to dry in accordance with the instructions found on the packaging. When using a cement adhesive on your tiling projects you have to be careful when tiling direct onto neat plaster.