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Irganox® B 900

Technical Datasheet | Supplied by BASF
Irganox® B 900 by BASF is a synergistic processing and long-term thermal stabilizer system. It is a blend of 80% Irgafos® 168 and 20% Irganox® 1076. Maintains original melt flow and offers low color formation. Provides long-term-thermal stability. Irgafos® 168, an organic phosphite of low volatility and particularly resistant to hydrolysis, protects the polymer during processing by decomposing the hydroperoxides. Irganox® B 900 is compatible with polyethylene, ethylene vinyl acetate copolymers, polycarbonates, polyesters, styrene homo- and copolymers, polyurethanes and elastomers. It can be used in combination with light stabilizers of the Tinuvin®, Uvinul® and Chimassorb® range.
Product Type
  • Antioxidants > Blends
  • Heat Stabilizers
  • Processing Aids > Polymeric Processing Aids
Chemical Composition
Blend of 20% octadecyl-3-[3,5-di-tert-butyl-4-hydroxyphenyl]propionate] and 80% tris (2,4-ditert-butylphenyl) phosphite
Physical Form
Powder, Free-flowing
Product Status
Applications/ Recommended for
  • Other Thermoplastic > EVA
  • Other Thermoplastic > Other Polyester
  • PC
  • TPE and TPV > TPU (or TPE-U)
  • Polyester, Polyurethane, Styrene homo- and copolymer
Food contact approval

Irganox® B 900 Properties


Value & Unit
Test Condition
Test Method
Density, Bulk
530 - 630 g/l

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