KBS Coatings 75100 Cavity Coater Aerosol, 17.5 Fluid_Ounces 4000+ Hrs Salt Spray (Insane Rust Protection) Creeps into Welds &amp; Seams: Wicks &amp; penetrates where primers and topcoats cannot Water Displacing, Self Healing and Easy Application Resists alkaline solutions, most chemical &amp; acid vapors, road salt, steam, salt water. Ultra Long Lasting