Protects all outdoor wood surfaces with a single application. Penetrates wood fibers for long-lasting protection. Apply with a brush, roller, sprayer or by dipping. Safe to use around plants and pets. Made from naturally occurring plant and mineral extracts with no chemicals, this wood preservative penetrates wood to provide protection from sun and water. A single application is all that is needed. Will not wear off, peel or fade; treated wood develops a beautiful gray patina. This natural formula has been used on marinas, houses and decking for 60 years. Made of naturally occurring plant and mineral substances. Two ounce packet of powder makes 1 gallon of preservative, enough to treat up to 150 square feet.