UV Absorber

Overview
UV absorbers are additives that protect materials from harmful ultraviolet (UV) radiation by absorbing and dissipating UV energy as heat. They play a critical role in preventing photo-degradation, discoloration, yellowing, and loss of mechanical properties in plastics, coatings, adhesives, textiles, and other materials exposed to sunlight or UV light.

Key Properties

• Absorb UV light across critical wavelengths (UVA and UVB)

• Prevent polymer degradation, cracking, and loss of gloss

• Improve long-term durability, weather resistance, and stability

• Reduce yellowing and color fading in transparent or pigmented systems

• Compatible with a wide range of polymers and coatings

Examples of the Item

• Benzotriazole UV Absorbers — widely used in coatings and plastics (e.g., UV-328, UV-329)

• Benzophenone UV Absorbers — versatile protection in adhesives, coatings, and films

• Triazine UV Absorbers — excellent long-term performance, low volatility

• Hindered Amine Light Stabilizers (HALS) — often used together with UV absorbers for synergistic effects

Applications

• Plastics & Polymers — PE, PP, PET, PC, PVC, and engineering plastics for outdoor durability

• Coatings & Paints — automotive topcoats, industrial coatings, wood finishes

• Adhesives & Sealants — protection from yellowing and strength loss

• Films & Packaging — UV protection for agricultural films, PET bottles, and flexible packaging

• Textiles & Fibers — improved color fastness and weather resistance

Supply Options

• Grades: Industrial, High-purity, Specialty (low migration, low volatility)

• Forms: Powder, Granules, Liquid blends

• Compliance: RoHS, REACH, FDA (for food-contact polymers, depending on grade)

Note: Selection depends on polymer type, end-use exposure conditions, and regulatory requirements.