FLUOROLUBE Greases – PCTFE Fluoropolymer Grease – Flame Resistant Corrosion Resistant

Description

li>Structure (NLGI ~2 across grades)

• Controls: stay-in-place behavior

Applications & Good Uses?

Fluorolube greases are especially useful in applications where conventional lubricants may oxidize, evaporate, react, or lose film strength.

• chemical processing
• cryogenic gases
• electrical applications
• hydraulic uses
• instrumentation uses
• laboratory apparatus
• life support systems
• mechanical seals
• pulp and paper
• steel industry
• vacuum pump assemblies
• oxygen services
• chemically aggressive environments

Practical Ranking (what actually matters in the field)

From lowest highest effective viscosity:

GR-290 < GR-362 < GR-375 < GR-470 < GR-544 < GR-660

Application Mapping (useful for picking the right grade)

• Low ‘viscosity’ (GR-290 / 362)
  • Fast-moving parts
  • Low torque systems
  • Precision valves
• Mid range (GR-375 / 470)
  • General industrial
  • Seals + moderate load
• High viscosity (GR-544 / 660)
  • Slow-moving
  • High load
  • Aggressive chemical + sealing environments

Compatibility and Caution Information

Important use restrictions: Do not use Fluorolube greases where aluminum or magnesium parts experience heavy friction, galling, confined spaces, high loads, or high pressure exposure. Detonation can occur under those conditions.

Fluorolube lubricants may also react violently withsodium, potassium, amines, hydrazine, liquid fluorine, and liquid chlorine trifluoride. For greases specifically, gaseous fluorine, hydrofluoric acid, and caustic solutions are not recommended because they can attack the thickening agent.

FAQ’s

Are Fluorolube greases PCTFE or CTFE?
Fluorolube greases are best described as PCTFE fluoropolymer greases. CTFE is the monomer; PCTFE, or polychlorotrifluoroethylene, is the polymer lubricant chemistry. The TDS describes the material as chlorotrifluoroethylene polymer.

What is the viscosity of Fluorolube grease?
Fluorolube greases do not have a single oil-like viscosity value. Grease selection should be based on penetration / consistency, operating temperature, and the approximate base oil viscosity that drives functional film behavior under shear.

Which Fluorolube grease has the best low-temperature performance?
Based on the TDS suggested application temperature range, GR-362 has the lowest listed minimum application temperature at -40F (-40C).

Which Fluorolube grease has the highest dropping point?
GR-660 has the highest listed dropping point at 575F (300C).