MOLYKOTE® 33 Medium Extreme Low Temperature Grease – Silicone Lubricant for Bearings, Motors and Precision Equipment 100Gm Tube

MOLYKOTE® 33 Medium Extreme Low Temperature Grease is a silicone-based lubricant designed for precision components operating across a wide temperature range, particularly in extreme low-temperature environments. The grease is formulated with silicone oil and lithium soap thickener to provide stable lubrication, excellent oxidation resistance, and reliable performance in light-load mechanical systems.
This lubricant delivers exceptional low-temperature torque performance, allowing equipment to start and operate smoothly even in sub-zero environments. The grease maintains consistent viscosity and lubrication characteristics at temperatures as low as −73°C, while also providing stable performance at elevated temperatures up to 180°C. Its water resistance and compatibility with many plastics make it suitable for sensitive equipment and mixed-material assemblies.
MOLYKOTE 33 Medium Grease is commonly used in precision equipment where metal-to-metal or metal-to-plastic friction occurs at low to high rotational speeds. Typical applications include roller and conveyor systems, control cables, electric motors, optical and photographic equipment, and measurement instruments. The grease is also widely used in refrigeration and freezer equipment where conventional lubricants may fail due to extremely low operating temperatures.
The formulation provides reliable lubrication in light-load applications requiring smooth movement, low starting torque, and long service life. Its compatibility with plastics and resistance to oxidation help extend component life and reduce maintenance in demanding industrial and precision equipment environments.
Key Selection Proof Points
Chemical type: Silicone oil with lithium soap thickener
Appearance: White grease
NLGI consistency class: Approx. 2
Density: 0.98 g/cm³
Base oil viscosity (25°C): 100 mm²/s
Service temperature range: −73 °C to +180 °C
Worked penetration: 260–300 mm/10
Low temperature torque (−73°C):
• Initial breakaway torque: 207 × 10⁻³ Nm
• Running torque (20 min): 32 × 10⁻³ Nm
Four-ball weld load: 1,400 N
Maximum DN value: 200,000 mm/min
Typical applications: electric motors, control cables, conveyor rollers, optical instruments, measurement equipment, refrigeration systems, freezer equipment