Kami Drum Cleaner is a 100% alcohol-free substance, formulated exclusively for the purpose of cleaning acrylic scanner drums. Drum Cleaner cleans the drum immediately from all residues, e.g. oil, mounting tape residue and dirt. Note that DC 2001 can also be used for cleaning of sensitive polymer surfaces such as Plexiglas and Mylar films; most often used for picture framing applicatons. Please Note: you may mix the contents of the case with Scanner Mounting Fluid or Film Cleaner totalling 4 bottles per case.