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UV Absorbers & HALS

What Are UV Absorbers and HALS?

UV absorbers and HALS (Hindered Amine Light Stabilizers) are used to protect plastic products from UV rayssunlight, and weathering.

  • UV absorbers block harmful ultraviolet light.
  • HALS stop free radicals and slow down material aging.

They are often used together to give the best protection in outdoor or high-light environments.

Product Name Type Use Case
UV-531 Benzophenone UV Absorber General plastic protection
UV-327 / UV-328 / UV-329 / UV-234 / UV-326 Benzotriazole UV Absorbers Strong UV blocking for PE, PP, PS, PET
Tinuvin 770 / 622 HALS Outdoor & automotive applications
Chimassorb 944 / 2020 HALS Long-term durability, high heat areas
Chimassorb 2020
Chimassorb 2020
Chimassorb 944
Chimassorb 944
Tinuvin 622
Tinuvin 622
Tinuvin 770
Tinuvin 770
UV-234
UV-234
UV-326
UV-326
UV-327
UV-327
UV-328
UV-328
UV-329
UV-329
UV-531
UV-531

Advantages

  • Prevent yellowing, fading, or cracking
  • Extend product life in sunlight
  • Keep surface smooth and color stable
  • Maintain flexibility and strength
  • Improve performance in outdoor and automotive use

Typical Applications

  • Outdoor furniture and construction plastics
  • Car parts and exterior trims
  • Greenhouse films and agricultural films
  • Artificial turf and sports equipment
  • Wires, cables, pipes exposed to sunlight
  • Masterbatches and compounding materials

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