Rust O Clear is a Nano structured transparent anticorrosion coating for all grades stainless steel and aluminum surfaces. The coating inhibits corrosion for an extended period of time. Recommended Surfaces : Stainless Steel, Aluminum Packaging Size : 1 litre Coverage Area : 70 to 72 Sq.ft./lt (2 Coats) Shelf life : 1 Year Electrochemical : Corrosion inhibition efficiency 99% for 1200 hours Dry Time : 30mins