Use Birchwood Casey Barricade Rust Protection for all firearm metal surfaces Best way to protect your firearms from rust Excellent for humid and salt-air climates Barricade Rust Protection rapidly drives out moisture from metal pores and deposits a transparent protective coating which seals the surface. It&';s the best way to protect your firearms from rust. Withstands 500 hours in astm humidity test and 96 hours in astm salt spray test. Barricade Rust Protection is also an excellent penetrant for loosening rusty or frozen parts, as well as a good lubricant and an effective bore cleaner. Take your pick of how youd like to protect your firearms - with a variety of can options! its never been easier.table.productattributes, .productattributes td { border-bottom: 1px solid #ddd; border-collapse: collapse; padding: 2px; text-align: left; }