CASTROL Molub-Alloy 491 C

Description

Molub-Alloy™ 491 C is a lubricant especially designed for applications in heavy industry where high temperatures make

the use of combustible or traditional lubricants impossible or extremly difficult. A relatively high concentration of Molub-Alloy

solid lubricants is suspended in water, allowing even distribution over metal surfaces. These solid lubricants have a good

affinity to metal surfaces.

Application

For injection and extrusion molding of aluminium as well as for the lubrication of molds in the glass and rubber

industries (separation of surfaces in tire molds), the lubrication of bearing saddles between gear rim and outer

casing of cement and lime kilns.

For normal operating processes which require a disassembly of tight fitting elements as well as for friction

surfaces subject to very slow and discontinuous rolling motions and a constant thermal stress of more than

150°C.

The initial mixing ratio recommended is 1:10 and after a short operating period a protective lubricant layer is

formed on the friction surfaces. Depending on the application the fluid can be further diluted, upto 1:40 is even

possible, for maximum economic efficiency. After mixing with water the fluid can be applied by brush or by directly

spraying on the friction surfaces.

If the temperature is above 150°C the water starts to evaporate immediately leaving a thin layer of solid lubricants

evenly distributed on the surface.

Please observe that mixing Molub-Alloy 491 C with water results in an inhomogeneous mixture which has to be

stirred before use.

Advantages

Application up to a temperature of +450°C

Lubricating effect due to solid lubricants

The layer of solid lubricants facilitates the assembly and disassembly of components and machine tools and

prevents the seizure of fitting surfaces.

In extrusion molding the layer of solid lubricants ensures an improvement of the work piece surface and prevents

the cracking of the finished parts.