Birchwood Casey Barricade Rust Protection - 10 Ounces - 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. Rust protection is also an excellent penetrant for loosening rusty or frozen parts, as well as a good lubricant and an effective bore cleaner. Use For All Firearm Metal Surfaces Best For Humid And Salt-Air Climates