Sandstrom 28A Solid Film Lubricant is a lacquer-like coating containing molybdenum disulfide and corrosion inhibiting pigments. This Air Drying material prevents corrosion, galling, seizing and fretting. It is a low-friction coating which exhibits long wear life when operated at -320°F to +500°F under loads exceeding 100,000 psi. Sandstrom 28A should be applied where baking with the longer wearing, heat cured #099, Sandstrom 9A or LC-300 is not desirable.
Excellent Corrosion Protection without the use of toxic heavy metals and the use of non-HAP solvents are its outstanding characteristics.
Once Sandstrom 28A has been applied to a properly prepared surface and allowed to cure, it is virtually unaffected by atmospheric and fretting corrosion, solvents, acids, oils and degreasers. Sandstrom 28A can be applied to all metallic and non-metallic surfaces by spray application.
Boeing PN/Spec#: HMS4-1078QPL B Types I, II, VII & XI
Boeing M.D. PN/Spec#: HMS 4-1078 Types I & VIII