Pentaerythritol Tetraoleate
Pentaerythritol TetraOleate (PTO) is a high-performance Group V polyol ester. It is widely used as a biodegradable synthetic base oil where excellent lubricity, thermal stability and high-temperature performance are required.
With its naturally high viscosity index, superior film strength and low volatility, PTO is an excellent choice for environmentally acceptable lubricants (EALs), biodegradable hydraulic fluids, gear oils, greases and metalworking lubricants.
Product Information
Chemical family: Polyol ester
Chemical name: Pentaerythritol TetraOleate
Type: Group V synthetic ester base oil
Appearance: Clear amber liquid
Characteristics: High viscosity index, excellent thermal stability, low volatility, readily biodegradable
Packaging: Drums / IBC / Bulk
Main functions
Synthetic base oil
High-performance Group V polyol ester for demanding lubricant formulations
Boundary lubrication
Provides excellent film strength to reduce friction and wear under high loads
Thermal and oxidative stability
Resists oxidation and thermal degradation, extending lubricant service life
High viscosity index
Maintains viscosity over a wide operating temperature range
Low volatility
High flash point reduces evaporation loss, misting and oil consumption
Biodegradable performance
Suitable for environmentally acceptable lubricant formulations

Typical Uses by Industry
Industrial Lubricants
Synthetic base oil for high-performance industrial lubricants
Used where excellent thermal stability and long lubricant life are required
Biodegradable Hydraulic Fluids
Base stock for environmentally acceptable hydraulic fluids (HFDU)
Suitable for applications requiring biodegradable lubricants
Gear & Chain Oils
Used in biodegradable gear oils and chain lubricants
Provides excellent lubricity and oxidation resistance
Metalworking
Base oil for neat cutting oils and speciality metalworking lubricants
Improves lubricity and tool protection during machining operations
Greases
Used in biodegradable grease formulations
Contributes to excellent film strength and wear protection
Forestry, Marine & Agriculture
Suitable for environmentally acceptable lubricants (EALs) used in environmentally sensitive applications

