The vehicle electrification process brings technical challenges to the automotive lubricant industry, which leads to a technology shift that requires fluids with enhanced efficiency, metal-free and sulfur-free and compatible with Copper. ZDDP-based products are very popular and are still used in engine oil, however, in transmission and gear oils it has been progressively replaced by other technologies and is unlikely to be used in EVs due to their inherent limitations. These and other emerging markets require a metal-free, sulfur-free AW/EP additive that also provides high copper corrosion protection.
The Solution: Duraphos 178 phosphate ester from Solvay!
Duraphos 178 from Solvay is a globally registered, amine neutralized phosphate ester that offers outstanding anti-wear performance as well as extreme pressure protection and copper corrosion protection. Duraphos 178 offers equivalent performance to ZDDP in gear oil formulations with the same level of performance in fully formulated gear oils and electric vehicle fluids while being ashless gives you a leg up over traditional additives. In addition, Duraphos 178 also offers better extreme pressure performance over ZDDP, providing overall medium extreme pressure protection.
Comparison Testing: Duraphos 178 vs. ZDDP
• Equivalent to ZDDP while being ashless (Zn free)
• Same level of performance in fully formulated gear oils and electric vehicle fluids
- Better EP performance than ZDDP with equivalent anti-wear performance
- Same level of performance in fully formulated lubricants
- Provides a medium extreme pressure performance: Mild EP Solution
Duraphos 178 is also an excellent anti-wear/extreme pressure additive with corrosion prevention performance for grease:
Aluminum Food Machinery Greases:
● Corrosion inhibitor @ 0.27%: meet ASTM D1743
● Provides corrosion protection without affecting the shear stability and the dropping point
Calcium Food Machinery Greases: Corrosion inhibitor @ 0.27%: meet ASTM D1743
Lithium Greases:
● ASTM D5969 sea water rust test @ 3%
FDA Certification: 78.3570 and CFR 175.105: Approved for indirect food contact
The Ideal Additive for your Formulation Challenges
Duraphos 178 is not classified as eco-toxic and is based on a widely available raw material source. These key features and benefits make it an ideal addition to the formulator’s toolbox:
- Metal-free and Sulfur-free
- High Copper Corrosion Protection
- Approved for incidental Food Contact
- Outstanding anti-wear performance with extreme pressure protection
- Well suited for e-drivelines
Solvay’s next generation phosphate esters like Duraphos 178 are here to meet your future formulation requirements. Contact us for more information and to request a sample.