16oz Teak Cleaner, safe, easy to use formula, cleans teak & other fine woods. Removes stains & weathering. Use as the first step in the restoration of gray, weathered teak. No need to sand alter cleaning. Does not raise wood grain. Cleans teak with no hard rubbing. Ideal for use on teak furniture & home decks. Will not harm fiberglass or painted surfaces. Prepares fine woods for oiling & sealing. Contains no dangerous acids.