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Tiangang® HS-770

Hindered Amine light stabilizer (HALS)

Chemical name Bis(2,2,6,6-tetramethyl-4-piperidyl)-sebaceate
CAS number 52829-07-9
Tiangang® HS-770 is a highly effective radical scavenger that protects organic polymers against degradation caused by exposure to ultraviolet radiation. It is widely used in a variety of applications including polypropylene, polystyrene, polyurethanes, ABS, SAN, ASA, polyamides and polyacetals. Its high effectiveness as a light stabilizer makes it well suitable for applications in both thick section and films, independent of the thickness of the articles. Combined with Tiangang’s other HALS products, Tiangang® HS-770 displays strong synergistic effects.

Typical properties

  Appearance Molecular weight Specific gravity, g/ml@ 20oC Melting range
Flash point
Tiangang® HS-770 White crystalline granules 481 1.05 81 ~ 85 > 150

Solubility @ 20oC (g/100 ml solvent)

Tiangang® HS-770 Water Hexane Methanol Acetone Ethyl acetate
0.001 5 38 19 24

Light Stabilizer Safety & handling

Tiangang® HS-770 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.


Light Stabilizer 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.