Blue Water Marine Paint Rust No More Tested as the best product on the market for stopping rust!Direct to rust primer for all your rusty metal needs.Will work on clean steel or rusty steel, galvanized metal, zinc, aluminum, tin or previously painted surfaces Covers 300 - 400 square feet/gallon; 2 coats needed for proper application Is a universal paint primer, and a "rust converting" paint primer.Can overcoat with all different types of paint - no restrictionsNeeds no sanding or deglossing .Is a self-etching primer that "bites" into the painted surface Is a unique 1-step process. This item is not for sale in Catalina Island