Henry unfibered foundation coat is a thin penetration solution containing a selected asphalt base in a petroleum solvent delivering top performance results with every application. The water resistant coat is specially formulated to penetrate pores and seal dusty concrete and masonry surfaces to provide a firm bond for asphaltic coatings. Ideal for sealing laps or seams in nailed on conventional cap sheet roll roofing, sealing nail heads and for protecting nails against damaging rust. Covers 200 linear feet of 2” wide lap per gallon of material. Product meets ASTM d-41, type I.