NavGuard

MIL-PRF-81309H Type II and Type IV (Advanced Grade CPC) QUALIFIED M81309-A1 / Type II, class 1M81309-A2 / Type II, class 1 M81309-D1 / Type IV, class 1M81309-D2 / Type IV, class 2 NSN 8030-01-600-1264 | NSN 8030-01-680-2305 (16 oz aerosol)NSN 8030-01-573-5154 | NSN 8030-01-680-2313 (1 quart) NSN 8030-01-573-5158 | NSN 8030-01-680-2310 (1 gallon) NSN 8030-00-262-7358 | NSN 8030-01-680-2312 (5 gallon)NSN 8030-00-524-9487 | NSN 8030-01-680-2311 (55 gallon) Background Preventing corrosion of metals in aircraft, vehicles and structures is a critical priority for the military, especially in the harsh naval aviation environment where humidity, salt, and heat can reduce metal parts to piles of rust and corrosion. Corrosion is difficult to detect and correct, and therefore prevention is usually the most cost-effective treatment. Applying corrosion preventive compounds (CPCs) into the internal spaces of airframes is effective in combating metal degradation. However, due to limited performance,