mercury oils

Heat Transfer Fluids


Hitherm PAG Rvn no : 1

Glycol based heat transfer fluid

Hitherm PAG is a glycol based heat transfer fluid that is fully compatible with most glycol based heat transfer fluids. Hitherm PAG proprietary formulation is far more oxidativly stable then competitive glycol based heat transfer fluids such as UCON-500 and will provide countless hours of trouble free service even in the most demanding applications.
Hitherm PAG is a low odor non- toxic/non-hazardous formulation, and does not require any special health and safety warnings or disposal procedures. Hitherm PAG is no compatible with conventional mineral oil based heat transfer fluids and PAO’s.

Hitherm PAG is recommended for use in heat transfer systems where fuel oil, gas or electricity is used to heat a fluid, which then transfers the heat to the point of application.

  • Excellent thermal efficiency and stability
  • Long life
  • Outstanding thermal and oxidation stability
  • Prevents from sludge and deposits
  • Clean operation
  • Protects from rust and corrosion

Typical performance data

  Test method PAG 46
Base oil type   PAG
Density, gr/ml   0.98
Viscosity cSt @ 40 °C ASTM D445 46
Viscosity cSt @ 100 °C ASTM D445 9.2
Flash point, °C ASTM D92 225
Pour point, °C ASTM D97 -45
Auto-ignition point, °C ASTM D92 325
Carbon residue, by % mass ASTM D189 0.007
Copper corrosion, 24hr ASTM D130 1a
Average molecular weight   320
Distillation range, °C 10% ASTM D2887 371
Distillation range, °C 90% ASTM D2887 517


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