This product is a high-molecular-weight phosphite antioxidant with excellent thermal stability.

It offers high temperature resistance, hydrolysis resistance, and low volatility, and effectively controls color and melt flow index under extreme conditions. It provides good antioxidant performance even when used alone.

It delivers excellent color protection and thermal stability in humid or high-temperature environments, particularly during high-temperature processing, preventing yellowing and thermal degradation.

It is mainly used in engineering plastics, nylon, PVC, ABS, PMMA, and related polymers.