Can I use anything other than Isopropyl alcohol to clean the bottom after I abrade the surface?

Isopropyl Alcohol is the only cleaner that when it evaporates does not leave a film. Solvents like acetone, lacquer thinner and others evaporate so quickly they leave a film that will interfere with the adhesive. It is important that you closely follow the directions for cleaning as a clean uncontaminated surface is needed for the adhesive to set properly.