Birchwood Casey Barricade Rust Protection for Firearms. Barricade Rust Protection protects your firearms from rust. It rapidly drives out moisture from metal pores and deposits a transparent coating which seals the surface with a protective film. Withstands 500 hours in ASTM humidity test and 96 hours in ASTM salt spray test. Also makes an excellent penetrant for loosening rusty or frozen parts. Order Now! WARNING: This item cannot be shipped to Canada. Please check your State, County and City laws for restrictions before ordering this product. Birchwood Casey Barricade RustProtection for Firearms, Aerosol