Buff the surface of the kitchen wall using a sanding buffer with fine-grain sandpaper. This will remove any roughness and imperfections from the surface of the wall.
Clean the wall and surrounding areas with a shop vacuum to remove any dust and debris, then wipe off the wall using a washcloth.
Spread a one-fourth inch layer of fine grout over the kitchen wall using a trowel. Apply the grout in an even layer.
Press glass tiles onto the grout layer, positioning the tiles so that they are one-eighth inch apart.
Spread a one-eighth-inch thick layer of fine grout over the surface of the tiled kitchen wall. This will fill in the spaces in between the glass tiles.
Wipe off the front of each glass tile sing a washcloth, leaving the grout in between the tiles in tact. Allow the grout to dry and set for at least 12 hours.