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Unmatched Performance From POLYBOND™ 3200

The Industry Leading Coupling Agent From SI Group


The POLYBOND™ 3200 from SI Group is legendary for its performance as a coupling agent in plastic applications. POLYBOND™ 3200 outperforms other coupling agents, demonstrating superior thermal stability, color control and less degradation.

Due to its color and heat stability properties, POLYBOND™ 3200 is ideal in applications that require natural or white color resilience at elevated temperatures. In the following pictures, POLYBOND™ 3200 is compared to a competitor's coupling agent. After heat aging for 14 days at 150ºC (302º F), POLYBOND™ 3200 maintains its color better compared to the competition.

Before Heat Aging

POLYBOND™ 3200 & Competitor

After Heat Aging

POLYBOND™ 3200 & Competitor

MFI measured 9 for both grades before heat aging. After heat aging, POLYBOND™ 3200 retains its MFI while the competitors product degrades.



  • World class domestic ISO manufacturing assets
  • Robust supply chain with no MOQs
  • Minimal lead times with next-day turnarounds
  • First-in-class technical support from leading industry experts


SI Group is the world’s largest producer of liquid phosphites, specialty antioxidants and additives in non-dust forms, including its patented ANOX™ NDB™ stabilizer blend technology that enables up to eight components to be delivered in a single homogeneous blend. Recognized for its extensive portfolio of specialty additives, including light stabilizers, polymer modifiers, polymerization inhibitors and intermediates, SI Group is the former antioxidant and UV stabilizer solutions business of Chemtura Corporation. The company's global headquarters is in Connecticut, USA, with regional headquarters in Al Jubail, Saudi Arabia; Basel, Switzerland and Shanghai, China. It has 11 plants on five continents, as well as research, manufacturing and sales facilities around the globe.


ChemPoint is the leader in the marketing, sales and distribution of specialty and fine chemicals across North America and EMEA. We specialize in agile technologies and focused product teams, providing our customers with responsive, personalized service. ChemPoint was founded in 1999 & we operate on 3 principles.

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