The leader in the industry in corrosion prevention. Can be easily sprayed, brushed or dipped onto any metal surface. Its zinc-rich formula is designed for permanent protection. 93% pure zinc in dry film. Meets performance requirements of MIL-P-46105(MR), MIL-P-21035B and DOD-P-21035A. Withstands 2000 hours of 5% salt spray testing (ASTM B-117). Light grey, matte finish. Zinc sacrifices itself to protect the base metal surface. Provides protection equal to or better than hot-dipped galvanizing. Outstanding weld-through primer.