This product has been specially developed for the safe cleaning and maintenance of all butyl, hypalon, rubber and vinyl boats and surfaces. It easily removes stubborn dirt and stains, such as tar, diesel oil and shoe sole stains, and also slows down the aging process of these flexible surfaces. Due to its composition, Seapower Inflatable Boat Cleaner prevents rubber and vinyl from becoming sticky and cracking in the sun. This makes this product particularly suitable for cleaning fenders.