Description
Fluorolube GR-544 is a high-viscosity PCTFE fluoropolymer grease, NLGI 2, with strong film strength for valve and seal applications. Penetration 257-277, dropping point 530°F, T-80 base oil equivalent (~80 cSt). Nonflammable, oxygen-compatible.
GR-544 Benefits
- NLGI 2 consistency with high-viscosity T-80 base oil (~80 cSt)
- Strong film retention for high-load and sealing applications
- Nonflammable PCTFE chemistry, oxygen-compatible
- Stable in strongly oxidizing and acidic environments
- Dropping point 530°F (275°C)
- ~80% combined fluorine and chlorine content
Common Applications
- Valve sealing in aggressive chemical service
- High-load bearings and slow-speed components
- Oxygen service systems
- Chemical processing equipment
- Cryogenic and oxidizing environments (above 30°F)
Typical Properties
| Property | Value |
|---|---|
| Penetration (ASTM D-217-82) | 257-277 |
| Dropping Point (ASTM D-2265) | 530°F / 275°C |
| Suggested Temp Range | 30°F to 300°F |
| Base Oil Equivalent | T-80 (~80 cSt @ 100°F) |
| NLGI Grade | 2 (Medium / Butter-like) |
Selection Notes
GR-544 is the high-load specialist of the Fluorolube grease line. For lower viscosity / faster-moving parts, see GR-362 or GR-375. For maximum dropping point, see GR-660.
Use Restrictions
Do not use with aluminum or magnesium parts under heavy friction. Avoid contact with sodium, potassium, amines, hydrazine, liquid fluorine, and chlorine trifluoride.
Ordering and Support
If you need help selecting the right Fluorolube grade for your application, call (800) 220-1966 or email [email protected].
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