About SI Group

SI Group, established in 1906, is a renowned global leader in the chemical industry, headquartered in Schenectady, New York. With over a century of expertise, SI Group specializes in the development and production of high-performance additives, intermediates, and chemical solutions essential for diverse industries, primarily focusing on enhancing the quality and functionality of materials and products. SI Group's advanced range of polymer additives plays a crucial role in stabilizing, protecting, and enhancing polymers, ensuring they perform optimally under various environmental conditions. These additives help prevent degradation, enhance processing efficiency, and improve final product quality, making them indispensable in applications like automotive, construction, packaging, and more.

LOWILITE® 22

LOWILITE® 22 by SI Group is 2-hydroxy-4-octoxybenzophenone. Acts as an ultraviolet light absorber. It is effective in polyolefins, low and high density polyethylene, polypropylene and olefin copolymers such as EPR, EPDM and EVA. LOWILITE® 22 by SI Group is also designed for polyvinyl chloride, polyesters, natural & synthetic resins, polystyrene and ABS.

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WESTON™ 430 phosphite

WESTON™ 430 phosphite by SI Group is a specialty alkyl phosphite antioxidant for polyester fibers and polyurethanes. It provides heat, color and viscosity stability. The shelf life of WESTON™ 430 phosphite by SI Group is one year.

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WESTON™ 399 phosphite

WESTON™ 399 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, processing and end use.<br> <ul style="padding-left: 40px;"> <li> Synergism can be established when this product is combined with other stabilizers such as hindered phenols.</li> <li> It phosphite can be added alone or in combination with the monomers and/or in antioxidant emulsions during recovery and/or during compounding.</li> <li> It possesses low color and low nonylphenol content.</li> <li> It is FDA approved.</li> <li> It has a shelf life of 1 year.</li> </ul>

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