Zinc dialkyl dithiophosphates (ZDDP IM)

Zinc Dialkyl Dithiophosphates (ZDDP IM) are a class of organophosphorus compounds widely used as anti-wear additives in lubricants, especially in engine oils, hydraulic fluids, and industrial greases. The “IM” designation typically refers to a specific isomeric mixture or intermediate molecular weight variant tailored for particular lubricant formulations.

ZDDP helps reduce wear, inhibit corrosion, and provide antioxidant protection by neutralizing free radicals and hydroperoxides. ZDDP IM variants are optimized for thermal stability, film-forming efficiency, and compatibility with base oils, making them suitable for high-performance and heavy-duty applications.