Your next best option is to apply some heat as a diy carpet glue remover.
How to get tile adhesive off concrete floor.
Mastic mastic is an organic compound commonly used as a concrete and tile adhesive.
The hot water loosens the glue by melting it and makes it easier to work with when cleaning.
The first course of action would be to mop the floor thoroughly to soften the tile adhesive without harming the floor.
Step 2 use chemicals.
It dissolves quickly in water and is easy to remove.
Be careful not to ruin your floor though or you won t have anything to tile.
After you remove the tiles chisel and scrape the adhesive off the concrete as well.
How do you take it out.
You can leave bits of adhesive up to 1 8 in.
If you can t get it all don t worry.
Some adhesive will stick to the concrete even after mopping.
You can use a scraper to scrape the glue off once it s softened.
Thin set mortar thin set mortar is water resistant and very durable.
This type of adhesive may need to be removed with a chisel and hammer or a pry bar.
But other parts of vinyl tile adhesive may take more time to come off completely.
In fact large bits of it will come off with your tiles as you pry them up.
Start by softening the glue residue with a natural glue remover like boiling water then continue scrubbing until the glue detaches from the flooring.
Well an old fashioned chisel will do.
Make sure the adhesive has softened after a bit then use your scraper to more easily chip away and remove it.
Then the adhesive that was holding it in place must be removed.
Simply place it at a 45 degree angle to the substrate and chisel away.
Layer of latex thin set mortar over the floor.
Depending on the type of tile and the type of.
This is one of the best ways to soften the mastic without damaging the floor.
Usually you can get a few bits of the adhesive off from scraping the tiles.
This is to fill in voids and level around remaining bits of adhesive.
If you re installing new tile use the same latex thin set to set the tile.
Then use the flat side of a 12 in.
The first step is to use a putty knife to scrape off the adhesive while applying heat to the adhesive to soften it up.
Use chemical adhesive remover.