Synthetic Base Oils
Alkylated Naphthalene Base Oils
Today's lubricants need to perform even in extreme conditions. Our alkylated naphthalene (AN) base oils combine the stability of a polyalphaolefin with the solubility benefits of an ester — helping formulators extend the life and performance of both synthetic and mineral-oil-based lubricants across automotive and industrial applications.
Benefits
Thermal & Oxidative Stability
Supports longer lubricant life across demanding operating conditions.
Seal Compatibility Enhancement
Works well with common seal materials for reliable, leak-free performance.
Hydrolytic Stability
Reliable performance for use in high-moisture environments.
Improved Additive Effectiveness
Performs as an effective ester replacement in additive-sensitive formulations.
Performance Advantages
Typical properties* — replace with your own product data.
| Grade | SG at 15.6°C | KV at 100°C, cSt | KV at 40°C, cSt | VI | Pour point, °C | Flash point (COC), °C | Color | Water, ppm | TAN, mg KOH/g |
|---|---|---|---|---|---|---|---|---|---|
| ASTM D4052 | ASTM D445 | ASTM D445 | ASTM D2270 | ASTM D97/D5950 | ASTM D92 | ASTM D1500 | ASTM E1064 | ASTM D974 | |
| AN 5 | 0.908 | 4.7 | 29.0 | 74 | -39 | 222 | <1.5 | <50 | <0.05 |
| AN 12 | 0.887 | 12.4 | 109 | 105 | -36 | 258 | <4.0 | <50 | <0.05 |
*Typical properties; actual values will vary and are not to be construed as specifications.
Polarity Effects on Lubricant Additives
Compared to esters, alkylated naphthalenes can improve additive effectiveness through less competition for the metal surface, allowing a more complete additive film.
Base Oil + Ester + Additive
Base Oil + AN + Additive
Oxidative and Hydrolytic Stability
In turbine oil oxidation stability testing, replacing ester with AN in the formulation improved oxidative and hydrolytic stability, offering potential to extend compressor oil lifetime.
Oxidation Resistance in SAE 5W-30 Engine Oils
In oxidation screening tests, our AN formulated with Group III base stock demonstrates improved oxidative stability in engine oils compared to Group III blended with an ester.
Enhanced Additive Performance
Two tests demonstrate that our AN complements additive performance, improving lubricant durability and efficiency.
| Test — 5W-30 Grade Oil | 75% PAO Blend, 10% Polyol Ester, 15% Adpac | 75% PAO Blend, 10% Our AN, 15% Adpac |
|---|---|---|
| Sequence IVA Wear, µm | 541 | 147 |
| Sequence VIB Phase 1 FEI, % | 1.0 | 1.3 |
Sequence IVA test (ASTM D6891): use of our AN improves durability through more effective use of the additive package. Sequence VIB test (ASTM D6837): use of our AN improves efficiency (FEI) through reduced friction from more effective additive performance.
Sludge Reduction
Using a Cincinnati Milacron-type test, a PAO base oil reference was compared with PAO blended with our AN. Results demonstrate that AN base oils increase overall blend solubility and cleanliness.
