Sea Hawk Tuff Stuff Gray Epoxy PrimerSea Hawk's Tuff Stuff High Build Epoxy Primer dries fast and is able to complete a barrier system and bottom paint in just two days. Microsheet silicate technology allows the epoxy to build a 100% water barrier that protects the surface from water penetration and moisture. Can be used on aluminum, bronze, stainless steel, cast iron, and lead both above and below the waterline. Effective on fiberglass or bilge coating as it helps prevent blisters and is resistant to oil and water. A universal primer it can be used for corrosion protection and for priming metal. The overlapping barrier created by Tuff Stuff prevents any direct path for water migration. Typical Film Thickness (sprayer): 6-7.5 mils dry film thickness per coat. (11.5-14.5 mils wet film thickness for smoother finish; Typical Film Thickness (Roller): 3.6-4.2 mils dry film thickness per coat. (7.0-8.0) mils wet film thickness for smoother finish; Recommended Coats: 2-4 depending on intended service; Features: Reduces labor and less haul out time; High Build Epoxy - Fewer coats needed; Protects metals from corrosion above and below waterline; Use over blistered fiberglass as a repair coat or a barrier coat over unblistered fiberglass; Longer window between coats makes Tuff Stuff easy to use; Click here to download Sea Hawk Tuff Stuff Safety Data SheetTuff Stuff Application Video