Provides a level of water-repellency and U.V protection. Hydrophilic resin system uses surface moisture to penetrate and level. For use on exterior deck or fence substrates such as pressure-treated pine, all types of cedar, redwood, fir, cypress, spruceand hardwoods such as mahogany. SPF 24 has a lightly toned finish. SPF 48 has a deeply toned finish. All tones have a near flat finish. On smooth surfaces, covers 300-400 sq. ft. per gallon; on rough surfaces, covers 150-250 sq. ft. per gallon.