Our best. Promotes the adhesion of either oil or latex topcoats. Fast drying formulation throughly seals the surface and cleans up easily with soap and water. Provides excellent flexibility on bare or weathered wood. Covers up to 400 sq. ft. per gallon on smooth surfaces. Dries to touch in 1 hour under normal temperature and humidity. Product uses: Exterior bare of weathered wood, masonry, or concrete block. May be tinted with up to 4 oz. of colorant per gallon.