SI Group Polymer Additives Selector

NAUGARD™ 445 Granular is an excellent-performance amine antioxidant with significant synergy with phenolics, particularly effective in extreme heat and oxygen environments.

NAUGARD™ 445 Powder is an amine antioxidant with excellent synergy with phenolic antioxidants and excellent for use in extreme heat and oxygen environments.

Versatile phosphite stabilizer that improves color, processing stability, and end-use of a variety of polymers; similar to WESTON™ 398 but with food contact approvals.

Nonylphenol-free phosphite antioxidant, designed as a drop-in replacement for TNPP with a 20% lower loading rate.

WESTON™ TNPP is a versatile phosphite stabilizer that improves color, processing stability, and the end use of a variety of polymers; similar to WESTON^® 399, but with a higher flash point.