IHTG 150 and IHTG 460

Per-fluorinated polyether (PFPE)

No. 115


  • Lubricate Ball and Roller Bearings
  • Gears
  • Screw Actuators
  • Electrical Contacts
  • Assembly Lube on O-Rings
  • Other Elastomers

IHTG 150 and IHTG 460 are white buttery NLGI #2 grease. The base fluid is an extremely stable per-fluorinated polyether (PFPE ) oil with exceptional chemical resistance, exceptional heat transfer characteristics coupled with very low volatility, and a wide temperature service range. The thickening agent is micronized tetra-fluoroethylene telomere (PFTE). IHTG #115 is chemically inert, oxidative stable and is nonflammable.

Because IHTG 150 and IHTG 460 greases have low pour points and low starting torque they are used in cryogenic applications. Typical uses are to lubricate ball and roller bearings, gears, screw actuators, electrical contacts, and as an assembly lube on O-rings, and other elastomers. At high-temperatures IHTG 150 and IHTG 460 can withstand 280ºC (536 °F) for long periods of time. IHTG 150 and IHTG 460 greases are ideal candidates for fill-for-life applications in the uses cited above.

Due to the chemical resistance of all of the IHTG 150 and IHTG 460 series of greases they are used in the chemical industry. Because they do not react with oxygen, they see use in oxygen valves. They do not react with corrosive gases, and liquids, such as in chlorine valves. They do not react with strong acids and alkali such as fuming sulfuric acid and strong NaOH. Thus, they lubricate a myriad of chemical pumps. They are ideal in areas of pure oxygen infusion, and are non flammable making them usable in autoclaves

IHTG 150 and IHTG 460 is a built from a micronized tetra-fluoroethylene telomere (PFTE) thickener, and an exceptionally stable per-fluorinated Polyether base fluid giving it the following unique features:

  • Chemically Inert: They are not affected by chemicals, which attack other greases.
  • Non-flammable: They will not catch fire.
  • Low Volatility: The low vapor pressure yields long life at high-temperatures.
  • High Volume Resistivity: This makes them suitable for electronic applications.
  • High Viscosity Index and Low Pour Point: These properties allow them to be used at extremely high and low temperatures.
  • No Effect on Seals, Elastomers, and Paints: They will not swell or shrink over 95% of the commercial elastomers and seals at high temperatures.
  • Non-Toxic and Biologically Inert: They comply with local and Federal safety and health regulations.
  • Extremely Hydrolytically Stable: They will not react with water even at high temperatures as in the case of highly pressurized steam.

IHTG 150 and IHTG 460 will provide superior, long lasting protection against:

  • Extreme pressure
  • Water washout
  • Elevated temperatures
  • Acid contamination
  • Rust and oxidation
  • Corrosion
  • High temperature oil volatilization
  • Channeling due to cold temperatures




                IHTG 150     

IHTG 460


Color and Texture

> Opaque White, Smooth & Buttery <


Specific Gravity @20°C (68°F) g/ml





Worked Penetration, @ 25°C, (77°F)



ASTM D1403



Unworked Penetration



60 Strokes @ 25°C (77°F)

 265 – 290

265 – 290

ASTM D-2265



Dropping Point, °C (°F)

> 275°C (527°F)

> 272°C (522°F)

(ASTM D-2596)




Four Ball EP Weld Load, Kg.

620 kg.



Evaporation Weight Loss, 30 hrs.,




@149°C (300°F)

< 0.50%




Base Fluid Type


 >> Perfluorinated Polyether <<

(ASTM D 445)


ISO VG Grade



 Viscosity @ 40°C (104°F)

162.0 cSt

  448.0 cSt

 Viscosity @ 100°C (212°F)

19.5 cSt

   49.5 cSt

 Viscosity @ 20°C (68°F)

500.0 cSt

          1360.0 cSt

 Viscosity Index (ASTM D2270)



 Pour Point, °C (°F)

-27°C (-17°F)

              -36°C (-33°F)

Operating Temperature Range




 -27 to 288

  -36 to 220


    – 17 to 550

      -33 to 428




Although it is very inert (under certain conditions), newly exposed surfaces of aluminum and magnesium may react