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SI Group’s been providing high-quality products and solutions for over 100 years. Today, we offer leading additive solutions for plastics, rubber, fuels, lubricants, and more. Our broad global footprint spans more than 19 manufacturing sites and joint ventures across the globe to provide our customers with reliable and consistent products and services.
NAUGARD BIO-XL™
#AcceleratedSustainability
Ultra-accelerator that contains over 85% bio-based materials for tires and technical rubber goods that provides improved scorch protection, higher elongation, and prevents blooming.
WESTON™ 705
Embrace the Future
The next generation nonylphenol-free liquid phosphite antioxidant for plastics and elastomers. Approved for broad food contact worldwide including Europe, China, and USA.
![Logo](https://siigroup.com/hubfs/SI_Group_Oct2023/Images/Logo-icon.png)
EVERCYCLE™
#EnablingCircularity
EVERCYCLE™ additives for plastic recycling enable greater circularity in the plastics industry by closing the performance gap between virgin and recycled plastic.
![Logo](https://siigroup.com/hubfs/Website%202024/PDFs/Evercycle_Grey.jpg)