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Irgastab® FS 533 FF

Technical Datasheet | Supplied by BASF
Irgastab® FS 533 FF by BASF is a phenol-free phosphite processing stabilizer designed for use in polyolefin fiber applications. Also acts as a light stabilizer when combined with hindered amine light stabilizers such as Chimassorb® 2020 and/or UV absorbers such as Tinuvin® 326. Offers excellent long term thermal stability, low color and minimal gas fade discoloration due to no phenolic interaction. Irgastab® FS 533 FF is suitable to be used in both controlled rheology and rheology reactor PP fibre grades. Recommended for bulk continuous filaments and staple fiber applications such as upholstery and floor covering. Its recommended use level ranges between 0.10–0.15%.
Product Type
  • Processing Aids > Polymeric Processing Aids
  • Antioxidants > Blends
Chemical Composition
Blend of tris(2,4-di-tert.-butylphenyl) phosphite, oxidized bis(hydrogenated tallow alkyl) amine, 1,6-Hexanediamine, N,N'-bis(2,2,6,6-tetramethyl-4-piperidinyl)-polymer with 2,4,6-trichloro-1,3,5-triazine, reaction products with, N-butyl-1-butanamine and N-butyl-2,2,6,6,-tetramethyl-4-piperidinamine
Masterbatch
No
Physical Form
Granules, Free-flowing
Appearance
White to off-white
Product Status
COMMERCIAL
Applications/ Recommended for
  • PP
  • Fibers/ Textiles/ Carpets > Fabrics
  • Fibers/ Textiles/ Carpets > Fibers
Food contact approval
Yes

Irgastab® FS 533 FF Properties

Property

Value & Unit
Test Condition
Test Method
Melting Range
93 - 182 °C
Softening Point
47 °C
Bulk Density
0.40 - 0.50 g/ml
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