Premium Synthetic Wood Coating for Low Maintenence Cetol® Marine from Sikkens with Next Wave™ advanced UV-absorbing technology is a durable translucent protective wood finish for use above the waterline on interior and exterior woods. Cetol® Marine Gloss creates a superb high gloss hard wearing finish, that is really easy to clean and has excellent UV protection thanks to its Next Wave™ UV-absorbing technology. Do not use on decks. Next Wave™ UV-absorbing technology offers incredible UV protection A high gloss, hard wearing topcoat finish Do not use on decks