Boat polish pad is made of melamine sponge composite scouring pad. Using the principle of micro-grinding, its microfiber filaments have fine particles and a hard texture. They are suitable for boat polishing scratches, clean off dirt and imprints on the surface of ships. bright the hull as new. Polish scratches, clean off dirt and marks on the surface of the vessel. An easy-to-use polishing pad for scratches and do deep cleaning to keep the hull as bright as new.