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Priolube™ 1939

A highly oxidatively stable, low volatility, hydrolytically stable ester providing enhanced lubrication performance. It is particularly well suited for use in high temperature applications.
Priolube™ 1939
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Product details


  • Priolube


  • Greases
  • Chain oil - High temperature
  • Compressor fluids
  • Metalworking and forming - Metalworking fluids


  • Esters - Trimellitate ester

Feature and benefits

  • Biostable - Improved in-service operation, longer life
  • High thermal and oxidatively stable - Improved in-service operation, longer life
  • Hydrolytically stable - Longer life, increased productivity
  • Low volatility - Reduced product maintenance

Physical form

  • Liquid


  • Industrial processes
  • Metalworking


  • Base oils
  • Lubricity additives


Property Units Value
Acid value mg KOH g⁻¹ Login
Density at 20°C g cm⁻³ 0.955
Flash point °C Login
Hydroxyl value mg KOH g⁻¹ Login
Iodine value gl 100 g⁻¹ Login
Kinematic viscosity at 100°C mm² s⁻¹ 20.2
Kinematic viscosity at 40°C mm² s⁻¹ 335
Pour point °C Login
Saponification value mg KOH g⁻¹ Login
Viscosity index Login
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