Chemical Name: 2-(2'-hydroxy-3',5'-di-t-butyl-phenyl)benzotriazole
CAS NO.: 3846-71-7
Molecular Weight: 323.4
|Appearance||Yellowish crystalline powder|
|Melting Point||152-156 ℃|
|Loss On Drying||≤0.3%|
|Transmittance||460 nm≥97% 500 nm≥98%|
Properties and Application:
UV-320 is a high-efficient light stabilizer, which has strong ultraviolet absorbing ability and low volatility characteristics.
UV-320 protects polymers as well as organic pigments from UV radiation helping to preserve the original appearance and physical integrity of molded articles, films, sheets and fibers during outdoor weathering. It is suitable for PVC, unsaturated polyester and other polymers.
PVC: 0.25-0.5 %
unsaturated polyester: 0.2-0.4%
Package: 20/25kg cartons or drums.