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Tinuvin® 234 FF

Technical Datasheet | Supplied by BASF
Tinuvin® 234 FF by BASF is chemically phenol, 2-(2H-benzotriazol-2-yl)-4,6-bis(1-methyl-1-phenylethyl) grade. Acts as a UV absorber. It is a high molecular weight product belonging to hydroxyphenyl benzotriazole class. Imparts excellent light stability to a variety of polymers. Features low volatility, exceptional light absorbing characteristics and good compatibility in various substrates. This makes the product particularly suitable for applications characterized by high surface area, such as films and fibers. Suitable for polycarbonates, polyalkylene terephthalates, polyacetals, polyamides, polyphenylene sulfide, polyphenylene oxide, aromatic copolymers, thermoplastic polyurethane and polyurethane fibers, as well as for polyvinylchloride, styrene homo- and copolymers. Applications include molded articles, films, sheets and fibers. Use levels of Tinuvin® 234 FF ranges between 0.15 and 0.60%, depending on substrate and performance requirements of the final application.
Product Type
Light Stabilizers / UV Absorbers > Benzotriazoles
Chemical Composition
Phenol, 2-(2H-benzotriazol-2-yl)-4,6-bis(1-methyl-1-phenylethyl)
CAS Number
Physical Form
Product Status
Applications/ Recommended for
  • PC
  • PVC
  • TPE and TPV > TPU (or TPE-U)
  • Other Thermoplastic > POM (Polyacetal)
  • Other Thermoplastic > PPS
  • PA, Nylon
  • Fibers/ Textiles/ Carpets > Fibers
  • Safety, regulation & environment > Low volatiles
  • Polymer protection > Weatherability (UV, moisture, Oxygen...)
Bio Based

Tinuvin® 234 FF Properties


Value & Unit
Test Condition
Test Method
Molecular weight
448 g/mol
Melting range
137 - 141 °C
Flash point
> 150 °C

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