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Introducing ultEbase® -
A New Class of Synthetic Base Oil
ultEbase® is a globally patented, Group V synthetic base oil platform developed by SantoLubes® for high-performance lubrication in gear and compressor systems. Engineered with ultra-low elastohydrodynamic (EHD) shear strength – up to 35% lower than PAG and up to 45% lower than PAO – ultEbase® helps improve energy efficiency while delivering high viscosity index along with high heat capacity and thermal conductivity that help lower operating temperatures.
ultEbase® base oils are designed to improve energy efficiency compared with conventional synthetic base oil technologies and support efficient lubrication across a wide temperature range. It’s formulated for precision applications, long-term reliability, and reduced power consumption under extreme mechanical stress. Proudly manufactured in the USA by SantoLubes®, an ISO 9001:2015 certified company with Six Sigma expertise and a global footprint in high-performance lubrication.
Why ultEbase® Delivers Superior Results
ultEbase® redefines expectations across a range of performance metrics – from energy efficiency and mechanical protection to cleanliness and biodegradability.
Superior Efficiency
Supports improved efficiency relative to conventional synthetic base oils due to its ultra-low elastohydrodynamic (EHD) shear strength, which helps reduce internal friction and improve energy efficiency in gearbox applications.
Outstanding Thermal Management
Higher thermal conductivity than PAG oils along with high heat capacity helps dissipate heat and lower operating temperatures in gearbox applications.
Longer Equipment Life
Provides excellent film thickness protection in properly formulated fluids used in demanding lubrication environments.
Eco-Conscious & Safe
ultEbase® base oils can be produced from bio-derived feedstocks derived from renewable sources.
Core Properties That Define ultEbase®
Each molecular characteristic of ultEbase® supports temperature stability and energy conservation.
Ultra-Low EHD Shear Strength
Up to 35% lower elastohydrodynamic (EHD) shear strength than PAG and up to 45% lower than PAO, supporting efficient torque transfer and improved energy efficiency in gearbox systems.
High VI (Viscosity Index)
Maintains film strength across cold starts and extreme heat.
Exceptional EP/AW Protection
Provides excellent film thickness protection in properly formulated lubrication systems used in demanding operating environments.
High Thermal Conductivity
Keeping oil sumps cooler and extending lubricant life.
High Performance & Cleanliness
Used in sealed and long-interval systems.
Biodegradability & Safety
Low toxicity supporting marine and other operations.
Performance Superiority Across Base Oil Classes
Lower friction. Higher efficiency. Validated results.
Not all synthetics are created equal. The performance of base oils can vary significantly based on their molecular structure, processing method, and raw material origin. ultEbase® base oils are designed to improve energy efficiency and lubrication performance compared with conventional synthetic base oil technologies:
Friction reduction
Up to 35% lower elastohydrodynamic (EHD) shear strength than PAG and up to 45% lower than PAO, supporting improved torque transfer efficiency and reduced internal friction losses in gearbox systems
Thermal conductivity
Higher thermal conductivity than PAG oils helps dissipate heat and lower operating temperatures in gearbox applications
Shear stability
ultEbase® base oils are stable to viscosity shear down in elastohydrodynamic lubrication environments and support consistent lubrication performance in gearbox systems
Where ultEbase® Excels
ultEbase® is designed for high-performance industrial, transportation, and renewable systems. Its performance and environmental profile make it ideal for:
Gearboxes
Supports efficient torque transfer and reduced internal friction in enclosed gearbox systems operating under demanding loads and temperatures.
ultEbase® provides consistent film strength under demanding load and temperature conditions often seen in enclosed gear systems. Its low EHD shear characteristics support efficient torque transfer and reduced internal friction, contributing to longer service intervals. Unlike conventional fluids that may degrade or shear in high-stress conditions, ultEbase® maintains viscosity stability, helping reduce operating temperatures, wear, and unplanned maintenance.
Wind Turbines
ultEbase® base oils are suitable for demanding gearbox applications such as wind turbine gear systems operating under variable loads.
ultEbase® performs beyond the limitations of traditional PAOs and PAGs by maintaining stable film strength under extreme loads and temperatures. Its ultra-low EHD shear strength enables smoother gear interaction and less mechanical resistance, which translates to higher efficiency and reduced internal wear. Where conventional synthetics often break down or shear under high stress, ultEbase® holds its structure, lowering operating temperatures and extending service life. This results in longer intervals between oil changes, less component fatigue, and reliable performance in both high-torque and sealed gear applications.
Electric Vehicle Drivetrains
Reduces drivetrain heat and mechanical loss; extends battery life and system durability.
Gear systems with significant sliding contact place unique demands on lubricant performance. ultEbase® supports efficient torque transfer and reduced internal friction through ultra-low elastohydrodynamic shear strength, helping improve lubrication efficiency in gearbox applications. Its stable fluid characteristics align with the precision needs of electrified mobility systems.
Oven Chains
High flash points, low volatility, and thermo-oxidative stability for minimal lubricant loss.
In high-temperature chain applications, such as baking ovens or curing lines, ultEbase® maintains film strength while resisting oxidation and carbon formation. Its elevated flash point allow for consistent lubrication with reduced smoke or residue, even during continuous exposure to elevated temperatures. This supports cleaner operation, longer relube intervals, and less buildup on surfaces prone to thermal stress.
marine
Protects gear systems while meeting environmental compliance for biodegradability.
ultEbase® supports gear protection and efficient lubrication performance in marine gearbox systems operating under demanding load conditions. It supports gear protection under load while helping meet biodegradability expectations. Its low-toxicity formulation reduces risk in case of fluid leakage and aligns with compliance needs in environmentally sensitive marine zones, including ports and inland waterways.
Compressors and Hydraulics
Outstanding air release, rust resistance, and foam control.
ultEbase® base oils are suitable for compressor fluids and hydraulic fluids where stable viscosity and efficient lubrication performance are required. It offers effective foam suppression, air release, and corrosion protection, helping to prevent cavitation, pressure loss, and premature wear. The fluid’s clean-operating characteristics support efficient power transmission and extended system uptime in both mobile and stationary equipment.
Greases and Chain Lubes
Compatible for blending with H-1x packages; supports low-wear and high-load performance.
ultEbase® base oils can be used in greases and additive formulations where efficient lubrication and thermal stability are required. Its chemical structure supports low wear under boundary conditions and strong compatibility with thickening agents and additive systems, including food-grade packages. This enables formulators to meet demanding performance needs across industrial, transport, and regulated environments where lubrication reliability is essential.
Elevator and Heavy Equipment Systems
Supports high-duty cycles with thermal stability and metal surface protection.
ultEbase® supports efficient lubrication and film protection in gearbox systems operating under high mechanical loads and demanding duty cycles, helping protect metal surfaces from scoring, and fatigue. Its ability to perform under both high-load and high-cycle environments makes it suitable for construction equipment, freight elevators, and other mission-critical lifting systems.
Request a Technical Consultation
Have an application in mind? Let us help you evaluate the right formulation and performance fit for your system.
Proven Results
Validated. Patented. Proven.
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