First, you want to mix your tile adhesive. For most tile types such as glass and stone, mortar is the best choice for tile adhesive. However, if you decide to go with ceramic tiles, you should use mastic, which is a premixed tile adhesive made specially for premium ceramic tiles.
Once you have your tile adhesive ready to go, spread it on the wall evenly using your trowel. You can also use a technique called “back buttering” by spreading the adhesive onto the back of each individual tile, then placing it on the wall. This technique will strengthen the bond between the mortar and the back of the tile, but it is not required.
Now you’re ready to start placing your tiles on the wall! Start by placing your tiles on the bottom of the wall where it meets your counter. It’s important that you use spacers in between each tile to ensure there is an even gap. Continue placing your tiles using spacers, until your desired area is covered. You can also go over the tiles with a grout float to ensure that everything is even. Once your tiles are all placed, let them sit for at least 24 hours to let the mortar dry.