SP54 Hypalon Antifoul, Fully flexible antifoul for use on Hypalon material and non ~flexible surfaces such as GRP. SP54 Hypalon Antifoul, Fully flexible antifoul 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 our own extremely low friction technology SP54 offers a unique solution to an age old marine problem Available in 1 litre tins Range of colours to match material