Molub-Alloy 243 Arctic Grease is intended for use in plain and anti-friction bearings operating in freezing environments down to -65°F (-54°C). It is designed to meet the performance requirements of MIL-G-10924C Specification. For effective lubrication in very cold temperatures, a primary requirement of grease is that it remain soft and pliable, especially in rolling element bearings. Stiff grease in anti-friction bearings can prevent rolling at start-up or allow skidding during operation, possibly resulting in damage and early failure. Of equal importance for greases in very cold regions is the ability to protect against corrosion. As temperatures drop from daytime operation to overnight freezing, moisture from the air is precipitated an the cooling metal surfaces. Bearings experiencing wide temperature fluctuations are particularly subject to corrosive attack. Molub-Alloy 243 Arctic Grease fulfills these most difficult requirements as a truly multi-service grease for transportation and industrial operations in very cold environments. Beyond the requirements of the Military Specification, the anti-wear and load-carrying characteristics of this grease are fortified with a proprietary blend of Molub-Alloy lubricating solids. The high quality base oils and thickening system used in Molub-Alloy 243 Arctic Grease were selected for their combined ability to maintain a good working consistency throughout a wide temperature range. The product is inhibited against oxidation, and particularly against corrosion as a major hazard of the low temperature service for which it was designed. Also included, in complete dispersion, are metallic lubricating solids of suitable grade and particle size for antifriction bearings. Molub-Alloy lubricating solids are specially treated to improve their natural affinity for metal surfaces. The consistency of Molub-Alloy 243 Arctic Grease is slightly less than the NLGI Grade No. 2 required by the Military Specification. Importantly, however, the apparent viscosity, or working consistency, at -65°F is well below the maximum specified.
