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Irgastab® IS 4188L

Technical Datasheet | Supplied by BASF
Irgastab® IS 4188L by BASF is an aqueous dispersion of low volatile and non-discoloring antioxidant. It acts as a thermal stabilizer and processing stabilizer. It provides excellent protection against thermo-oxidative degradation of ABS, MBS, SB latex and related emulsion polymerization type of polymers. Irgastab® IS 4188L is suitable for stabilization of thermoplastic styrene copolymer. It offers excellent polymer color performance, improved long term heat stability and outstanding storage stability. The recommended usage level is 0.5-2.0%.
Product Type
  • Antioxidants
  • Heat Stabilizers
  • Processing Aids
Physical Form
White to off-white
Product Status
Applications/ Recommended for
  • TPE and TPV > SBC (or TPE-S)
  • ABS
  • Polymerization
  • Polymer protection
  • Safety, regulation & environment > Low volatiles

Irgastab® IS 4188L Properties


Value & Unit
Test Condition
Test Method
Total Solid Content
52.5 - 55.5 %
9.0 - 10.0
Particle Size Distribution Median X/50
< 2.0 µm

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