Grind them down with a grinder.
How to put tiles on the old bathroom wall.
If your old ceramic tile is worn or dated you can lay new tile right over the old and avoid the huge job of tearing out the old tile.
Use a 3 16 v notched trowel to apply the mastic adhesive to the wall.
Set the wet saw table to 45 degrees to make miter cuts.
Make a series of reference marks for the top and bottom tiles image 1 that way you will know how many tiles to put on the wall.
You can tile over tiles with the right preparation but i would never do this the proper way is to strip right back to.
Put on a dust mask and sand the wall tiles with a handheld power sander and medium grit sandpaper to roughen the surface.
After the tiles are set you need to add grout gently on the surface with the help of a trowel.
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Wall tiles are available in a whole host of shapes sizes colours and finishes which can be arranged in a number of different ways so take time to research the look you d like to achieve.
People worry about removing plaster from the wall when stripping old tiles but re skimming the plaster as a preparation for the new layer is part and parcel of achieving a good finish.
Remove the sanding dust with a vacuum cleaner and a hose attachment then.
Roughen the tile with 80 grit sandpaper.
It is also important to consider how the size of the bathroom lighting and tiles will all work together.
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