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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® to push the boundaries of what’s possible in gear and compressor lubrication. Engineered with the lowest elastohydrodynamic (EHD) shear strength ever recorded – up to 33% lower than PAO fluids – ultEbase® delivers superior energy efficiency, high viscosity index, and industry-leading heat dissipation.
Available in ISO 10 and ISO 680 grades, ultEbase® offers better performance and environmental safety than mineral oils, PAOs, and PAGs. 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 every performance metric – from energy efficiency and mechanical protection to cleanliness, biodegradability, and industry compliance.
Superior Efficiency
Delivers 3 – 13% higher efficiency than PAO/PAG oils through reduced shear and friction losses – verified in racing, worm gear, and gearbox testing.
Outstanding Thermal Management
Up to 15% higher thermal conductivity than PAG oils – rapidly dissipates heat and stabilizes operating temps in high-load systems.
Longer Equipment Life
FZG Load Stage Pass 12+, excellent micro-pitting resistance, and outstanding wear protection – prolonging seals, gears, and oil life.
Eco-Conscious & Safe
Readily biodegradable under OECD 301B protocol (>90% at 28 days), derived from bio-based feedstocks, and compatible with H-1 food-grade additive systems.
Core Properties That Define ultEbase®
Each molecular characteristic of ultEbase® supports real-world durability, temperature stability, and energy conservation – across the most demanding use cases.
Ultra-Low EHD Shear Strength
Up to 33% lower shear strength than PAOs – allowing superior torque transfer with less energy loss.
High VI (Viscosity Index)
Maintains film strength across cold starts and extreme heat – VI 182 (ISO 10) to 210 (ISO 680) far exceeding conventional synthetics.
Exceptional EP/AW Protection
Protects metal surfaces under extreme load – excellent copper compatibility, antiwear results, and load-stage dominance.
High Thermal Conductivity
Reduces oxidation, varnish, and localized hotspots – keeping oil sumps cooler and extending lubricant life.
High Solvency & Cleanliness
Naturally dissolves and prevents varnish, deposits, and sludge – essential in sealed and long-interval systems.
Biodegradability & Safety
Bio-based, low toxicity, and exceeds global biodegradability standards – supporting food-grade, marine, and regulated operations.
Where ultEbase® Excels
ultEbase® is designed for high-performance industrial, transportation, and renewable systems. Its performance and environmental profile make it ideal for:
Gearboxes
Reduces friction and power loss; increases torque throughput and oil life in enclosed gear reducers.
ultEbase® performs beyond the limitations of traditional mineral oils, 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.
Wind Turbines
Decreases flushing intervals and wear; excellent oxidation stability under variable torque.
ultEbase® performs beyond the limitations of traditional mineral oils, 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.
EV Drivetrains
Reduces drivetrain heat and mechanical loss; extends battery life and system durability.
ultEbase® performs beyond the limitations of traditional mineral oils, 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.
Oven Chains
High flash points (up to 288°C), low volatility, and thermo-oxidative stability for minimal lubricant loss.
ultEbase® performs beyond the limitations of traditional mineral oils, 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.
Marine Equipment
Protects gear systems while meeting environmental compliance for biodegradability.
ultEbase® performs beyond the limitations of traditional mineral oils, 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.
Compressors and Hydraulics
Outstanding air release, rust resistance, and foam control (ASTM D892).
ultEbase® performs beyond the limitations of traditional mineral oils, 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.
Greases and Chain Lubes
Compatible for blending with H-1x packages; provides low-wear and high-load performance.
ultEbase® performs beyond the limitations of traditional mineral oils, 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.
Elevator and Heavy Equipment Systems
Supports high-duty cycles with thermal stability and metal surface protection.
ultEbase® performs beyond the limitations of traditional mineral oils, 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.
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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