Debond Marine Formula. 5 oz aerosol. Removes polyurethane adhesives and sealants including cured and uncured 3M 5200, 4200 and 4000 & Sika 291 adhesives as well as Liquid Nails. It works extremely well at removing all masking tape, shrink wrap tape, black rub marks, and etc. Won't harm fiberglass, gel coat, clearcoat, 2-part paint systems, or plexiglas.