SP54 hypalon antifouling is a fully flexible paint for use on hypalon material. Can also be used on non flexible surfaces such as GRP. Hull and tubes can be protected on your RIB with just one product. Developed using unique pseudo organic technology. Extensively tested, keeps virtually all hulls free from growth of algae, crustaceans and other unwelcome marine life Includes copper, linked with an extremely low friction technology SP54 offers a unique solution to an age old marine problem.