How to Lay Glass Mosaics in the Corner Wall

Install the glass mosaic tiles on the main area of the wall until you reach the corner of the wall. At the bottom of the wall, spread white latex-modified thinset mortar on the wall with a notched tile trowel. Push the glass mosaic tiles into the spread mortar. Place a wooden block over the mosaic tiles and tap the block with a hammer to level out the mosaics. Trim the mosaic sheets to size with scissors or tile nippers.

Run the installed tiles until you almost reach the corner. Trim or cut the mosaic tiles so that the edge of the tiles barely touches the edge of the tiles on the adjacent wall. When installed correctly, the two walls of tiles will touch but not overlap. There will be a very small space in the corner behind the tiles. Allow the thinset mortar to dry overnight.

Soak a sponge in water and run it over the paper. Let the wet paper facing soak for a few minutes then peel away the paper.

Grout the tiles. Spread the grout into the tile joints with a grout float. Wipe away the excess grout with a wet grout sponge and let the grout dry overnight. Do not grout the corner line between the two walls of tile.

Apply caulk to the corner between the two walls of tile. Spread the caulk down the corner and use your finger to smooth the caulk. Let the caulk dry overnight.