Sandstrom 28A Gray MIL-PRF-46147 & MIL-L-23398 Solid Film Lubricant
Sandstrom 28A Solid Film Lubricant is a thermoplastic coating containing molybdenum disulfide and corrosion inhibiting pigments. This air drying material prevents corrosion, galling, seizing and fretting. It is a low-friction coating that exhibits long wear life when operated at -320°F to +300°F under loads exceeding 100,000 psi. Sandstrom 28A should be applied were baking with the longer wearing, heat cured #099, Sandstrom 9A or LC-300 is not desirable or practical.
Once 28A has been applied to a properly prepared surface and allowed to cure, it is virtually unaffected by atmospheric and fretting corrosion, acids, oils, and degreasers. Sandstrom 28A can be applied to all metallic and non-metallic surfaces by spray application.
Sandstrom 28A is an excellent in-plant or field solution to the problem of lubricating parts: