The SI Group is a leader and innovator in polymer additives and stabilizers that support a wide range of industries and markets. Their portfolio of Polyol Stabilization Antioxidants provides beneficial technology solutions for the polyurethane (PU) industry.
As the global leader in smart chemistry solutions that solves complex processing issues, the SI Group's antioxidant & stabilizer portfolio enhances the quality and lifetime of polymers. Naugard™ Polyol Stabilization Antioxidants are vital for Polyurethane (PU or PUR) polymers, as they protect the polyurethane system during the catalyst reaction. The catalyst reaction between polyols and isocyanates generates heat during the polymerization process. This increase in exothermic reactions can raise the internal foam temperature upwards to 160°C + which causes discoloration or damage to the foam product. Ultimately, foam and slabstock polyol producers require an antioxidant and additive package that can:
Improved PU processability
Lower VOC/FOG Emissions
Comply with regulatory parameters
Reduce waste, thermal scorch, and UV degradation for Polyurethane foam systems
Flexible and rigid polyurethane foam applications benefit from the SI Group's portfolio of Polyol Stabilization Antioxidants that are used to reduce thermal scorch and oxidative degradation.
NAUGARD™ PS 3015 is a liquid stabilizer blend of phenolic and aminic antioxidants that reduce FOG emissions by three times compared to the FOG industry standard for various slabstock polyol and polyurethane applications.
BHT Free Liquid Stabilizer Blend
Regulatory compliant stabilizer with OEKO-TEX Standard 100
Low emissive and 3-time FOG reduction compared to industry standard
Long-term protection against degradation due to thermal temperature and oxygen
NAUGARD™ PS 4830 stabilizer is a liquid hindered phenolic antioxidant used across polyurethane (PU) and polyol applications. This grade has outstanding polymer protection against long-term aging during processing.
Primary Antioxidant Blend (Phenolic + Aminic)
Low viscosity and low volatility
Readily soluble in polyols
Long-term Polyurethane (PU) protection against degradation due to heat, oxygen, thermal scorch, and surface discoloration
NAUGARD™ PS 48 stabilizer is a liquid hindered phenolic antioxidant used across polyurethane (PU) and polyol applications. NAUGARD™ PS 48 can be used in combination with phosphite or aminic boosters for slabstock polyols.
NAUGARD™ 445 provides exceptional protection to polymer systems, including plastics, elastomers, and various CASE applications. It also offers good protection from peroxide degradation during the processing of polyurethane systems.