By working with patience and with great care you will remove the largest amount of the wall tile adhesive.
Scrape tile adhesive off wall.
Adding water will damage the wallpaper.
If you damage the wall significantly you have to repair it before installing the new tile.
This may take a while depending on the size of the wall and the amount of adhesive you need to get rid of.
If the adhesive is the yellow or white glue like stuff you will need to use either mineral spirits laquer thinner or naptha.
The first step is to use a putty knife to scrape off the adhesive while applying heat to the adhesive to soften it up.
If the glue is thick you may need to reapply.
Scrape off the adhesive.
How to easily remove old tile adhesive and grout from walls using a heavy duty scraper uploaded by upload to youtube for windows phone.
Scrape down the walls with a putty knife removing the softened adhesive.
Scrape the surface of the adhesive with a stiff bristle brush.
But other parts of vinyl tile adhesive may take more time to come off completely.
The critical aspect is to scrape the adhesive off the wall surface as much as possible by using a wide chisel and a hammer.
Although you should aim the heat gun toward the adhesive you shouldn t press it directly onto it.
Once the mortar softens up scrape it off with a 4 scraper or a wallpaper stripper.
It depends on the adhesive some are also water based and clean off with warm water.
Use the straight edge or razor blade to gently scrape the glue off.
Usually you can get a few bits of the adhesive off from scraping the tiles.
If any adhesive gets stuck to the brush remove it by hand and continue until no more adhesive remains on the wall.
Do not gouge the walls.
If the adhesive has dried you will need to either scrape it off use the apropriate thinner or sometimes it will simply peel off.
If so repeat steps 3 5 as necessary.
If only traces of the glue remain scrub very gently with a dry scotch scrubbing pad.