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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
Download PDF	Hong Kun Group UV 328 UV Absorber.pdf
Price	EMAIL US sales@lookpolymers.com

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
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 Â°C	178 - 181 Â°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	GC

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