Zinc DialkyldithiophosphatesNova Additives

ZP-102

Zinc dialkyldithiophosphate — primary C8

Pure primary C8. The most hydrolytically stable grade in the ZDDP range, which is why it is the one specified for hydraulic fluids that will see water ingress and for long-drain industrial service.

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Typical propertiesLiquid

Type: Primary
Alcohol: C8
Zinc: 7.6 – 8.4%
Phosphorus: 7.2 – 7.8%
Sulphur: 14.5 – 15.5%
Oil: 10%

Typical values, not a specification. The binding specification is the one on the certificate of analysis issued against each batch.

Chemical identity

CAS number: 4259-15-8
EC number: 224-235-5

Cross-reference

Grades a formulator would benchmark ZP-102 against. Naming them is not a claim of equivalence — it is where to start the comparison.

Lubrizol 1097Infineum C9425Afton HiTEC 7197Adeka Sakura-Lube 318Lanxess Additin RC 3080

The chemistry

Zinc Dialkyldithiophosphates

Antiwear, antioxidant and corrosion inhibitor in one molecule

Typical treat rate0.5 – 1.5 %

Still the most cost-effective antiwear chemistry ever commercialised. Primary alkyl ZDDPs are thermally more stable and preferred in industrial and heavy-duty applications; secondary alkyls decompose at lower temperature and film faster, which is why they dominate passenger-car engine oils. Alcohol chain length sets both the thermal stability and the hydrolytic stability.

Used in

Engine oilsHydraulic oilsIndustrial gear oilsAutomatic transmission fluidsGreasesCompressor oils

Where ZP-102 is specified

Engine Oils

Passenger-car, heavy-duty and gas engine crankcase formulations, including low-SAPS.

Industrial Gear Oils

Enclosed gear drives, wind turbine gearboxes and heavy industrial reducers.

Hydraulic Fluids

Anti-wear hydraulic oils, including zinc-free and fire-resistant fluids.

Driveline & Transmission

Automatic and manual transmission fluids, axle oils, EV reduction-gear fluids.

Other grades in ZDDP

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Documentation

A full technical data sheet, safety data sheet in the language of the receiving country, REACH status statement and SVHC declaration are issued with every enquiry for ZP-102. Certificates of analysis accompany each consignment and retained samples are held for the full shelf life.

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