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GC UV 326

Technical Datasheet | Supplied by GreenChemicals SPA
GC UV 326 by GreenChemicals is a 2-(5-chloro-2H-benzotriazol-2-yl)-6-(1, 1-dimethylethyl)-4-methylphenol UV absorber. It exhibits high thermal stability and can be used in polymers processed at high temperatures. GC UV 326 shows compatibility with polycarbonates, polyalkylene terephthalates, polyacetals, polyamides, polyphenylene sulfide, polyphenylene oxide, aromatic copolymers, thermoplastic polyurethane fibers, polyvinylchloride, styrene homo- and copolymers.
Product Type
Light Stabilizers / UV Absorbers
Chemical Composition
CAS Number
Physical Form
Product Status
Applications/ Recommended for
  • Other Thermoplastic > POM (Polyacetal)
  • Other Thermoplastic > PPS
  • PA, Nylon
  • PC
  • PS (Polystyrene)
  • PVC
  • TPE and TPV > TPU (or TPE-U)

GC UV 326 Properties


Value & Unit
Test Condition
Test Method
> 99.0 %
1.32 g/ml
Melting point
137.0 - 141.0 °C

SpecialChem additionnal informations based on CAS Number : 3896-11-5

Hansen Solubility Parameters

[19.3, 5.3, 5.5]
[δD - Dispersion force interactions, δP - Polar force interactions, δH - Hydrogen bond force interactions]

Please note, these HSP values are estimations. It is based upon the “like seeks like” principle. It splits an ingredients interactions into three parameters; δD (Dispersion force interactions), δP (Polar forces interactions) and δH (Hydrogen bond force interactions). Hansen Solubility Parameters can help you find a wide range of products that are predicted to be compatible with GC UV 326. A practical determination of these HSP values would provide higher certainty. Learn More.

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