Castrol Optileb GR 9830 High-temperature bearing grease NLGI-2 1kg

Castrol Optileb™ GR 9830 (previously called Molub-Alloy™ Foodproof 9830) is a special high-temperature grease (NLGI grade 2) formulated from a synthetic oil and solid lubricants (PTFE), developed for the lubrication of rolling and sliding bearings. The grease is excellently suited for high-temperature applications in the food and beverage industries where minimum lubricant consumption, drip-free lubrication and physiological safety are required. It can also be used as a safety sliding agent for oxygen installations.

Application

• Especially suited for applications in baking and drying ovens in the food and canning industries.
• Due to its low volatility, is also suited for vacuum applications, e.g. coating installations.
• May be used in continuous service up to 250°C and be exposed to temperatures up to 280°C for short-time applications.

Advantages

• Aging resistance at high temperatures
• Thermal and chemical stability
• Resistant to most solvents, even chlorinated hydrocarbons, strong acids, alkalis and oxidizing agents, e.g.: acetone, benzene, benzol, boron trifluoride, bromine, chlorine, chlorobenzene, cyclohexane, dioxan, natural gas, ethylene acetate, fluorine, halogens, potassium hydroxide, methylene chloride, methyl formiate, sodium hydroxide, perchloro-ethylene, petroleum ether, hydrochloric and sulphuric acid, tetrahydrofurane, toluol, 1.1.1. trichlorethane, trichlorethylene, xylol
• Excellent lubricating properties – as measured by standard laboratory tests and extensive field evaluations
• Extended relubrication intervals without undue risk of lubricant starvation or increased lubricant consumption
• Below 280°C the lubricant resists the thickening and hardening which is typical of mineral oil products in hightemperature applications
• Minimum consumption, economic application and clean operating conditions
• Compatible with the following sealing materials: NBR, EPDM, NR, MWQ, PVMQ, PA, PE, PUR, PTFE
• Physiologically safe; approval by LGA (Bavaria)

Technical specifications

• Colour: White
• Density @ 15°C / 59°F  kg/m³: 1930
• Worked Penetration (60 strokes @ 25°C / 77°F)  0.1 mm: 265-295
• Thickener type: PTFE
• Base Oil Viscosity @ 40°C / 104°F  mm²/s: 510
• Base Oil Viscosity @ 100°C / 212°F  mm²/s: 46
• Base Oil Viscosity @ 200°C / 392°F  mm²/s: 6.5
• Viscosity Index: 135
• Flash Point - open cup method  °C/°F: non-flammable
• Pour Point °C/°F: -20/-4
• Volume: 1kg tin
• GLIS number: 15D691
• MSDS code: 468605

Additional Information

• Clean-up may be difficult because of the excellent resistance to ordinary cleaners and solvents. Use special solvents.
• Where lubricants may come in contact with products (e.g. food, textiles etc.) good effective sealing and handling procedures should be maintained.
• At continuous operating temperatures above 250°C, very small amounts of toxic vapors may develop due to chemical changes; forced draft ventilation is then necessary