Castrol Molub-Alloy 936 SF Heavy Spray is a uniquely compounded open-gear lubricant developed specifically for use on heavy-duty equipment in the extremes of environments. It is compounded to give maximum protection whilst minimizing potential pollutants to the environment. A highly refined, viscous, paraffinic mineral oil is the foundation of a blended base fluid with excellent natural chemical and thermal stability.

A proprietary blend of Molub-Alloy lubricating solids is included to promote antiwear and load-carrying properties beyond those of conventional lubricants. These lubricating solids work synergistically with chemical antiwear and extreme pressure (EP) additives to reduce contact temperatures while providing excellent anti-weld protection under extreme pressure and shock loading.

The structural integrity and strength of the lubricating film are particularly valuable in the critical process of seating new gears because of the natural occurrence of high spots (asperities) in newly machined surfaces. The lubricating film must separate the mating surfaces to cushion the effect of the impact of asperities, and minimise initial pitting which could lead to progressive and destructive pitting later.

Molub-Alloy 936 SF Heavy Spray is suitable for use on all types of open gears, racks and pinions or skidding applications, it can be applied either manually or by heavy-duty automatic systems.

This product is used extensively in mining, construction, onshore drilling operations and offshore installations facilitating effective lubrication and protection on:

• Rack and pinion jacking mechanisms.
• Cantilever skidding systems.
• Mooring winch open gearing and slides.
• FPSO offloading systems.
• Crane slew ring & pinion.
• Exposed threads on penstock valves.
• Heavy-duty top dressing for the ultimate protection of wire ropes.

Castrol Molub-Alloy 936 SF Heavy Spray Open-Gear Lubricant Product Advantages:

• Forms a tough durable film with a ‘cushioning’ effect – even under extreme pressures and at very low speeds, the semi-dry working film resists erosion from rain or sleet, resists peeling in dusty environments and resists film destruction by contamination oils and greases migrating from nearby mechanisms.
• Excellent rust and oxidation resistance – protects the equipment and the lubricating film against the elements in severe climates.
• Unique compounding technology – flows readily in the film-forming process yet it resists ‘squeeze-out’ and clings tenaciously even to gear teeth in vertical orientation.
• Formulated to address environmental concerns – it is free from solvents, lead, antimony and barium.

All packages should be stored under cover. Where outside storage is unavoidable drums should be laid horizontally to avoid the possible ingress of water and damage to drum markings. Products should not be stored above 60°C, or exposed to hot sun or freezing conditions.

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Product Data Sheet