Special formulation for wood docks & decks near open water. Extends useful life of boat docks, pool decks & resists salt water spray. Advanced nanotechnology provides superior protection against water. Non-film forming. Will not cause surface to become slippery. Water based, low VOC formula is safe for use near water & marine life. Approximate coverage: 250-350 sq. ft./gallon per coat. Based on surface porosity. Clear coating allows wood to gray naturally.