For the average small wall tiles which are currently popular you will want to use a 1x4 square notch trowel.
How to install stick up tiles to wall.
Slightly rock the sheet up and down perpendicular to the trowel lines to collapse the ridges and help the tile settle into place.
Press it firmly up against the wall and make sure that you hold it for a few seconds to allow the adhesive to stick to the wall.
For most tiles the depth of the notches should be.
Start at the top or one end of.
Scrape the mastic with the notched side of the trowel.
Follow the lines you made when the tiles were dry fit to the wall.
Test a tile to make sure the mortar is mixed and spread correctly.
However i decided to customize the look.
How to stick tiles to the wall 1.
Then place the tile directly up against the first tile.
Take the first tile and press it onto the wall in the area where you made your marks.
Tiles that have a directional pattern feature an arrow on the back so you ll know which way to orient them as you lay them down.
Remove the paper backing from the first tile and press the adhesive side firmly against the wall.
Peel and stick the tiles when you re ready to begin tiling line up the tiles with your layout lines remove the backing and press them into position.
If you see clear lines then the mortar is too dry.
Be sure to line up the tile with your penciled layout to get the placement right on the first try.
Mortar a small spot and then place a tile.
Place the mosaic sheets along the wall.
Add tile spacers for help keeping the tile pieces lined up.
Spread mastic generously over a section of the wall that you can cover with tiles in about an hour using the flat.
I used a wood trim instead.
Flatten the tile with a grout float if necessary.
I simply cut the wood to size mitered the corners on a 45 degree angle and applied them to the wall with a nail gun.