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Hong Kun Group UV 328 UV Absorber

Category Other Engineering Material , Additive/Filler for Polymer
Manufacturer Hong Kun Group
Trade Name
Port Shanghai port,China
Trade Terms FOB, CFR, CIF
Payment Terms L/C, T/T, Western Union
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Material Notes:
UV328 is a strong ultraviolet light absorber in the 290-400nm region. It provides effective light stabilization and prevents the yellowing and degradation of polymers such as PVC, unsaturated polyester, acrylics, ABS, thermoplastic urethanes, moisture cured polyurethanes, two component epoxies and urethanes, oil alkyds and thermosetting acrylic enamels.Chemical name: 2-(2'-Hydroxy-3',5'-di-tert-pentylphenyl)-benzotriazoleCAS No. 25973-55-1All information provided by Hongkun Group
Physical Properties Metric English Comments
Volatiles <= 0.50 %
<= 0.50 %
Molecular Weight 351.49 g/mol
351.49 g/mol
Ash <= 0.10 %
<= 0.10 %
Thermal Properties Metric English Comments
Melting Point 81.0 - 83.0 °C
178 - 181 °F
Optical Properties Metric English Comments
Transmission, Visible 97.5 %

@Wavelength 460 nm
97.5 %

@Wavelength 460 nm
98.5 %

@Wavelength 500 nm
98.5 %

@Wavelength 500 nm
Descriptive Properties Value Comments
Appearance light yellow powder
Purity (%) >= 99.0
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