Description
Castrol Molub-Alloy™ 969/320 Leak Resistant Gear Compound is specially formulated to help control leaks in gearcases
when repairs cannot be immediately performed to eliminate the cause(s) of leakage. The synthetic thickener forms a matlike matrix at the points of leakage to minimize the flow of oil. This product has a moderate thickening effect on the product,
especially during storage or while the equipment is stationary. During the churning motion of gears and bearings,
however, Castrol Molub-Alloy 969/320 exhibits the rapid flow and film-forming characteristics similar to a regular gear oil.
Leakage from gearcases has traditionally been controlled by the substitution of a grease for the lubricating oil. This is
unsatisfactory because greases can form "channels" and are poor at carrying heat away from the meshing gears and
dissipating it from the gearcase. In contrast, the synthetic thickener in Castrol Molub-Alloy 969/320 forms a gel and seals
small openings in the gearcase but otherwise acts like a standard gear oil in service.
Application
Castrol Molub-Alloy 969 Leak Resistant Gear Compound is formulated using a standard ISO base oil viscosity.
Castrol Molub-Alloy 969 Leak Resistant Gear Compound was originally developed for service in heavy duty earth-moving
equipment such as shovels and draglines. Surging stress and vibration on these machines inevitably produces some
degree of leakage from gearcases. Excessive leakage at shaft seals is not uncommon on hoist, drag, propel and
especially swing gearcases of large draglines and swing cases of shovels. Often the tramp oil will contaminate the heavy
gear compounds necessary to lubricate the exposed open gear drives.
The use of Castrol Molub-Alloy 969 Leak Resistant Gear Compound can be extended to control leaks in gearsets in
industrial and marine applications.
Advantages
Performs as a heavy duty gear oil under normal operations.
Will reduce or completly stop leakages until maintainance can be carried out.
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