Epifanes Seapower Wash ‘n’ Wax Boat Soap With color conditioners biodegradable By far the best product for regular washing of boats cars or mobile homes. Unlike most other soap brands this highly concentrated product provides a clean water resistant and streak-free film without removing the existing protective wax layer. It even adds strength to the existing wax layer. Wash-n-Wax Boat Soap is bio-degradable pH-neutral and can be used on fibreglass metal rubber wood and other types of (painted) surfaces. Epifanes Seapower Wash-n-Wax is very economical to use.