// Removed
SI Group Banner
Phosphites (L)




  Phosphites (L)
 Product Name     Product Description
  WESTON® 398 phosphite WESTON® 398 phosphite is a versatile phosphite stabilizer which is useful in a large number of polymers such as HDPE, LLDPE, SBR, ABS, PVC and others.
  WESTON® 398T phosphite WESTON® 398T phosphite is a versatile phosphite stabilizer which is useful in a large number of polymers such as HDPE, LLDPE, SBR, ABS, PVC and others.  
  WESTON® 399 phosphite WESTON® 399 phosphite is a versatile phosphite stabilizer which is useful in a large number of polymers such as HDPE, LLDPE, SBR, ABS, PVC and others.  
  WESTON® 430 phosphite WESTON® 430 phosphite is a speciality alkyl phosphite. It has a hydroxyl number of 395 mg KOH/gm. It is an effective heat, color and viscosity stabilizer for a variety of polymers including polyester fibers and polyurethanes.
  WESTON® 705 phosphite WESTON® 705 phosphite is a versatile phosphite stabilizer and nonylphenol-free. It is useful in a variety of polymer applications such as HDPE, LLDPE, SBR, NBR, SBC, SBS, ABS, PVC and others. Based on proprietary chemistry, it has been designed to replace TNPP in those instances where a TNPP alternative is sought. New advances in Polyethylene technology combined with the insatiable desire for continuous improvement in productivity and safety requires new and new and higher performing additive stabilization systems. WESTON® 705 antioxidant delivers a more consistent solution at the plant resulting in lowering operating and supply chain costs and a safer work environment. SI Group’s next generation nonylphenol-free, phosphite antioxidant is specifically designed to overcome the shortcomings of conventional solid phosphites. WESTON® 705 antioxidant not only meets all present performance and regulatory requirements but has been designed with the future in mind. For more information on WESTON® 705, please click here
  WESTON® 705T phosphite WESTON® 705 is the first nonylphenol-free liquid phosphite antioxidant to receive broad FDA and global food contact approval and today it is the most tested polymer antioxidant ever put on the market and the only one that has successfully passed these new higher standards. It is also useful in a variety of other polymer applications such as SBR, NBR, SBC, SBS, ABS and PVC.
  WESTON® TLTTP phosphite WESTON® TLTTP phosphite is a unique phosphite which contains sulfur. It can be used as an effective heat and thermal stabilizer for a variety of polymers where regulatory approval for food contact is not required.  
  WESTON® TNPP phosphite WESTON® TNPP phosphite is a versatile phosphite stabilizer which is useful in a large number of polymers such as HDPE, LLDPE, SBR, ABS, PVC and others.