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Tiangang® UV-P

High Efficiency Benzotriazole UV Absorber 

Chemical name 2-(2H-benzotriazol-2-yl)-4,6-ditertpentylphenol
CAS number 2440-22-4

Molecular Weight 225 g/mol
Description Tiangang® UV-P is an efficient UV absorber for a variety of plastics and other organic substrates, including polyolefins, and engineering plastics, as well as PVC, PMMA, PU, PET, POM, polyesters, and various elastomers, and adhesives, especially those with lower processing temperatures. When added to the substrates, it protects the substrate from UV degradation, preserving the original appearance and physical integrity of molded articles, films, sheets, and fibers during outdoor use.
Dosage level of Tiangang® UV-P is between 0.10 and 0.5%, depending on substrate and performance requirements. When used in combination with Tiangang® series of Hindered Amine light stabilizers (HALS), synergistic performance is often observed.

Typical properties

  Appearance Melting range
2% weight loss, oC
Flash point
Tiangang® UV-P Slightly yellow powder 128 ~ 132 170 205

Solubility @ 20oC (g/100 ml solvent)

Tiangang® UV-P Acetone Chloroform Cyclohexane Ethyl acetate n-Hexane Methanol Water
3 13 1 3.5 0.8 0.2 < 0.01

Safety & handling

Tiangang® UV-P The use of proper protective equipment is recommended. Excess exposure to the product should be avoided. Wash thoroughly after handling. Store the product in a cool, dry, well-ventilated area away from incompatible materials.


DisclaimerThe information supplied is presented in good faith and has been derived from sources believed to be reliable. Since conditions of use are beyond our control, all risks are assumed by the user. No representation is expressed or implied, and nothing herein shall be construed as permission or recommendation to practice a patented invention without license.