- Type I: Standard #34151 Green - Type II: Low infrared reflective #34052 Green - Class C2: Chromate rust inhibitor formulation - Class N: Non-chromate rust inhibitor formulation MIL-PRF-680 A degreasing solvent. MIL-PRF-3043C MIL-PRF-3043 A thermosetting resin coating for surfaces of engi...