SO SURE MIL-PRF-81309F, Type III, Aerosol Corrosion Preventative Compound is a highly effective, water displacing, non-staining, non-hardening, non-conductive corrosion preventative compound. The Type III aerosol has a lower viscosity and is designed for electronic components. It will not emulsify even in the presence of alkali. The protective film of MIL-PRF-81309F is ultra-thin, non-staining and highly protective. It can be used on any metal surface such as hinges, machinery, electronic components and all types of metallic sliding parts to provide corrosion protection and lubrication. The ease of application of MIL-PRF-81309F makes is particularly suited for in-service use and is intended for indoor and short term outdoor protection and lubrication.