Cerakote Gun Coatings Corrosion Test: ASTM B117

Salt spray (ASTM B117) corrosion testing is used to evaluate the relative corrosion resistance of coated panels exposed to a salt spray or fog at an elevated temperature. Coated panels are placed in an enclosed salt spray chamber at a 15-30 degree angle and subjected to a continuous indirect spray of neutral (pH 6.5-7.5) salt water solution. The chamber/cabinet is maintained at an operating temperature of 95°F and fogging a 5% salt solution at the required 12ml/hr.

Cerakote gun coating H-146 Graphite Black panels were checked for corrosion at specific intervals of 45, 160, 255, 385, 675, 850, 1000, 2000, 3000, and 3500 hours. At 3500 hours, Cerakote H-146 was not corroded. This study shows that Cerakote preserves the life of the firearm in a corrosive environment longer than any competitive coatings.