Castrol Molub-Alloy Gm 969 (320) [37-lb./16.78-kg. Pail] 157F71

Castrol Molub-Alloy GM 969/320 Leak Resistant Gear Compound (previously called Castrol Molub-Alloy 969) is specially formulated to help control leaks in gear cases when repairs cannot be immediately performed to eliminate the cause(s) of leakage. The synthetic thickener forms a mat- like matrix at the points of leakage to minimize the flow of oil. Castrol Molub-Alloy GM 969/320 is manufactured by adding a small amount of a synthetic thickener to standard ISO Grade gear oils. The small addition has a moderate thickening effect on the oils, especially in the container, or while not in motion. During the stirring action of gears and bearings, however, Castrol Molub-Alloy GM 969/320 exhibits the rapid flow and film-forming characteristics similar to the original base gear oils. Leakage from gearcases has traditionally been controlled by the substitution of a grease for the lubricating oil. This is unsatisfactory because grease can channel, and are poor at carrying heat away from the meshing gears and dissipating it from the gearcase. It is the nature of the synthetic thickener to link or gel and bridge the opening with a restricting consistency. Other than this restricting action at small openings, Castrol Molub-Alloy GM 969/320 acts very much like the original base gear oil in service.

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