Malco Super Citra Clean is a biodegradable replacement for petroleum solvents. This d-limonene-fortified cleaner removes Cosmoline, transit coatings, cleans whitewalls, degreases and removes tar, wax and grease from painted surfaces. To use Super Citra Clean, simply wet surface to be cleaned, let stand and then rinse with water. Super Citra Clean works more like a solvent cleaner than a caustic, water-based cleaner that can etch or discolor unprotected metal parts. The powerful cleaning action offered by Super Citra Clean makes it ideal for buffing/polishing pad washers.