Zinc dialkyldithiophosphate
Product Introduction
Product NameZinc dialkyldithiophosphateQuality StandardStandardProduct Grade Ind
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- Update Time：2026-01
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Product Name | Zinc dialkyldithiophosphate |
| Quality Standard | Standard |
Product Grade | Industrial Grade |
Place of Origin | China |
Dangerous Goods | No |
Zinc dialkyldithiophosphate, commonly abbreviated as ZDDP, is a widely used multifunctional additive in lubricating oils and greases. It is a class of organometallic compounds renowned for its comprehensive performance in protecting mechanical components. With excellent compatibility with various base oils and other lubricant additives, ZDDP has become an essential ingredient in automotive engine oils, industrial lubricants, and metalworking fluids. Its unique chemical structure enables it to deliver multiple protective and performance-enhancing benefits in harsh operating conditions.
Key Functions
- Anti-wear Protection: ZDDP is primarily valued for its exceptional anti-wear properties. Under high pressure and temperature, it forms a durable protective film on metal surfaces, reducing friction and preventing direct contact between moving parts. This effectively minimizes wear and tear on engines, gears, and bearings, extending the service life of mechanical equipment.
- Extreme Pressure Performance: It exhibits strong extreme pressure (EP) capabilities, making it suitable for lubricating components operating under heavy loads or shock loads. The protective film formed by ZDDP resists breakdown under extreme pressure, preventing metal seizing, scuffing, or welding, which is critical for the reliability of high-stress machinery.
- Anti-oxidation and Corrosion Inhibition: ZDDP acts as an efficient antioxidant, inhibiting the oxidative degradation of lubricating oils caused by heat, oxygen, and metal catalysts. It also provides corrosion protection by forming a barrier against moisture, acids, and other corrosive agents, preventing rust and corrosion on metal surfaces.
- Metal Deactivation: The compound can deactivate metal ions (such as copper and iron) that accelerate oil oxidation, further enhancing the thermal and oxidative stability of the lubricant. This helps maintain oil performance over extended periods and reduces the formation of sludge, varnish, and other harmful deposits.
- Friction Modification: In addition to anti-wear protection, ZDDP moderately modifies friction between moving parts, improving energy efficiency and reducing fuel consumption in automotive and industrial applications.