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MOLYKOTE 33 Light 100 g, extreme low-temperature bearing grease, NLGI 1, silicone, white, −73 °C to +204 °C
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Description
MOLYKOTE 33 Light Extreme Low Temperature Grease 100 g is a white, silicone grease for bearings and precision mechanisms operating at very low temperatures. The “Light” grade (NLGI 1) delivers very low start-up torque, stable lubrication under light to moderate loads, and compatibility with many plastics and rubber.
Benefits and unique features
- Wide service range: −73 °C to +204 °C – reliable cold start
- Very low start-up torque – ideal for delicate mechanisms and cold starts
- Compatible with many plastics and rubber – does not soften most materials
- Good resistance to oxidation and moisture – extended service intervals
- Lithium-soap thickener + silicone base oil – shear stability and easy application
Properties and applications
- Precision bearings and drives: electric clocks, optical devices, measuring instruments, small motors.
- Cold-room equipment: freezer carts, cold-room conveyors, mechanisms starting at low temperatures.
- Automotive/electronics: windshield wiper gearboxes, starter clutch drives, small gear trains.
- Application note: not recommended for highly loaded ferrous sliding combinations.
Technical parameters
| Parameter | Value |
|---|---|
| Net content | 100 g (tube) |
| Color | white / off-white |
| State / appearance | silicone grease |
| Odor | slight |
| Relative density (20 °C) | ~1.1 g/cm³ |
| Water solubility | insoluble |
| Thickener / base oil | lithium soap / silicone oil |
| Base oil viscosity (25 °C) | ~100 mm²/s |
| NLGI grade | 1 (Light) |
| Worked penetration (ASTM D217, 60 strokes) | ~320 (1/10 mm) |
| Service temperature | −73 °C to +204 °C |
| Drop point (ASTM D2265) | ~226 °C |
| 4-ball weld load | ~1200 N (≈122 kg) |
| Low-temp torque at −73 °C | ~0.130 N·m; after 20 min ~0.013 N·m |
| Flash point (closed cup) | > 101.1 °C |
| Transport classification | not subject to ADR / IMDG / IATA |
| CLP classification / signal word | not classified / — |
Storage recommendations
Store in the original, tightly closed container, in a dry, well-ventilated place, away from oxidizers. Recommended storage temperature: 0–40 °C. Avoid excessive heating and contamination during application.
FAQ
1) What’s the service temperature?
Approximately −73 °C to +204 °C – engineered for extreme low temperatures.
2) Is it suitable for plastics and rubber?
Yes, it does not soften most plastics and can be used on plastic gears, bearings and cams.
3) Is it hazardous or ADR-regulated?
No – it is not classified as hazardous and is not subject to ADR/IMDG/IATA.
4) Any application limits?
Not recommended for very highly loaded ferrous sliding combinations.
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MOLYKOTE 33 Light 1 kg, extreme low-temperature bearing grease, NLGI 1, silicone, white, −73 °C to +204 °C
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