Seal It Green Xtreme Plant Based Total Wood Sealer is the leader in high performance, wood sealers and cleaners. Xtreme Total Wood is Plant Based making it the first true eco safe high performance wood sealer on the market. Xtreme Total Wood is also nearly VOC Free (under 20g/l) and will help protect against all types of water, UV and naturally caused damage. No more rotten boards, cupping, cracking or curling. Xtreme Total Wood will make your wood deck, dock or fence nearly maintenance free. If you want to make your exotic hardwood deck, traditional softwood deck, dock, log cabin or wood patio furniture nearly maintenance free then use Seal It Green Xtreme Total Wood. SIG Total Wood penetrates deeply even the hardest of woods. ONE GALLON COVERS UP TO 400 SF. You may get up to 600SF on some hardwoods and less than 400 SF on decks older than about 10 years. Does NOT Contain Mineral Oils/Spirits, linseed oils or pine oils. Wood treated with SIG Total Wood Is Protected from damage from water, UV and the worst Mother Nature can throw at it. Wood treated with SIG Xtreme Total Wood may naturally gray slightly after several years. If the graying is objectionable simply clean the deck using a deck brightener and reapply a maintenance coating of Seal It Green Total Wood.