The ultra-thin film, corrosion preventive compound covered by this specification is intended for use on any metal surface. It can be used both for initial protection during shipment and storage and for in-service treatment. It should not be used around liquid oxygen fittings. The ability of this material to prevent corrosion and to displace water and its ease of application when packaged as class 2 (self-pressurized containers) make it particularly suited for service use. The combination of properties of MIL-PRF-81309 provide the necessary requirements for a corrosion preventing compound for use in the extreme naval aviation environment. This material is intended for indoor protection and short term protection outdoors where surfaces can be recoated when required. This material is not intended as a substitute for other corrosion preventatives specified for protection of surfaces for periods of more than one month.

Type I, Class 1 and Class 2.

This type is designed to inhibit mildew growth and prevent corrosion simultaneously. This type is intended for use on moving parts where some lubrication is required, such as hinges, bomb racks, and sliding parts.

Type II, Class 1 and Class 2.

This compound is intended for use on moving parts where some lubrication is required, such as hinges, bomb racks, and sliding parts.

Type III, Class 1 and Class 2.

The compound is intended for use on avionic equipment, electrical connector plugs, and contact points.

Type IV, Class 1 and Class 2.

This type is intended for use to prevent corrosion in prone corrosion areas.