I have a kitchen floor that now has peel-and-stick tiles on it that are worn in some areas. Other than the wear areas, the tile is flat, smooth, solid and in good shape. I want to re-tile the floor with peel-and-stick tiles and I want to put this layer of tiles over the old tiles. I know it is sometimes better to remove the old tiles first, but this time around I definitely just want to tile over the old tiles.
So, here's my question.
Is there any particular type of floor stripper or surface prep that I should use on the old tiles before laying the new tiles?