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Priolube™ 3971
Priolube 3971 is an oxidatively stable, biodegradable and hydrolytically stable polyol ester. It is suitable for use in a wide range of applications, particularly in high temperature situations. It is European Ecolabel compliant and is featured on the LuSC list.
Priolube 3971

Product details


  • Priolube


  • Driveline & transmission (ICE & hybrid)
  • Greases
  • Chain oil - High temperature
  • Metalworking and forming - Rolling oils
  • Industrial gear oils


  • Esters - Polyol ester, saturated

Feature and benefits

  • Biodegradable
  • Good lubricity
  • High thermal and oxidative stability
  • High renewability content
  • Hydrolytically stable
  • Low volatility
  • European Ecolabel compliant

Physical form

  • Liquid


  • Industrial processes
  • Metalworking


  • Base oils
  • Lubricity additives

Global Inventory Compliance

  • European Ecolabel (LuSC list)


Property Units Value
Acid value mg KOH g⁻¹ Login
Biodegradability OECD 301B % Login
Cloud point °C Login
Density at 20°C g cm⁻³ 0.96
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 5.9
Kinematic viscosity at 40°C mm² s⁻¹ 30
Pour point °C Login
Renewable content % 85
Saponification value mg KOH g⁻¹ Login
Viscosity index Login
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