WESTON® 398 phosphite by SI Group is phosphite antioxidant stabilizer for HDPE, LLDPE, SBR, ABS and PVC. It improves the color and processing stability during recovery, drying, compounding... view more

WESTON® 504 by SI Group is a blend of 80% Weston TNPP phosphite and 20% Ultranox 27. It eliminates the pre-blending of antioxidants. It minimizes the risk of compounding errors and variability... view more

WESTON® 504B by SI Group is a blend of 80% Weston TNPP phosphite and 20% Ultranox 27. It eliminates the pre-blending of antioxidants. WESTON® 504B minimizes the risk of compounding errors and... view more

WESTON® DPDP phosphite ester by SI Group is alkyl-aryl phosphite antioxidant. It is used as a color and processing stabilizer in polycarbonate, polyurethanes and ABS polymers. It is also used as a secondary... view more

WESTON® ODPP by SI Group is diphenyl isooctyl phosphite. It acts as a heat stabilizer. WESTON® ODPP is suitable for rigid PVC, TPU, polyester, ABS and PC... view more