3M Marine Mildew Stain Remover cleans and eliminates mildew from most marine surfaces. This easy-to-spray powerful formula cuts into virtually any layer of mildew that grows on a boat. After applying, simply wipe with a cloth to reveal a fresh, clean surface free of unsightly mildew and mold. Once the surface is clean, follow up with 3M Marine Mildew Block to help prevent it from recurring.3M Marine Mildew Stain Remover cleans tough mildew on multiple surfaces, including: canvas, carpeting, upholstery, vinyl, seat cushions, deck furniture, carpeting and more. Our powerful mildew stain remover penetrates deeply to reach mildew and mold growth. Simply spray it on and wipe it off to rid the surface of mildew. Easy to Use Our 3M Marine Mildew Stain Remover uses a convenient spray-and-wipe formula. It acts quickly to cut to the source of mildew growth. Because it works quickly and efficiently, our product gives boaters more time to enjoy being on the water rather than cleaning the boat. The Next Step: Use 3M Mildew Block to Prevent Future Growth Once mildew has been cleaned from surfaces, its wise to take one additional step to prevent it from quickly recurring. Apply our spray-on 3M Mildew Block to help keep marine surfaces looking clean and fresh for a longer time.