we are in the process of finishing the laundry/basement area which was covered with old vinyl tile (house is about 50 years old and the tile is prolly original) now we were able to remove the old tile, but the adhesive that kept it on there is still stuck to the concrete now im hearing that trying to set the new tiles on it will not stick, what?s the best way to remove this old glue? I dunno what its made out of, so its hard to explain but I can take pictures if that would help anyone.