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EP Antiwear & Corrosion Inhibitor Additives


T203 Zinc Diethylhexyl Dithiophosphate WX203 is Zinc Diethylhexyl Dithiophosphate anti-oxidation and anti-corrosion additive. It has excellent anti-oxidation, anti-corrosion and EP antiwear properties. It has super thermal stability used in mid and high grade diesel engine oil.

Storage and Handling:
In the storage, loading/unloading and blending. The maximum temperature is 65ºC; if in long time storage we suggest the Max. Temperature is 50ºC. Avoid contact with water and moist air. Packing in 200L drum, net weight is 185Kg/drum. The warranty period is 24 months.


Physical and Chemical Properties:




Test Method 

Density at 20℃, g/cm3

1.060 min

ASTM D - 4052

KV@ 100℃, mm2/s


ASTM D - 445

Flash Point(COC),℃

180 min.

ASTM D - 92

Water, m%

0.03 max.

ASTM D - 95

S content, m%

14.0 min.


Zn content, m%

9.0 min.

ASTM D-4628

P content, m%

7.50 min.

ASTM D-4927