Guangzhou Eric Wei Chemical Co., Ltd.
Guangzhou Eric Wei Chemical Co., Ltd.

BASF Tinuvin 326 UV Absorber

BASF Tinuvin 326 is a high-performance benzotriazole-based UV absorber from the Tinuvin series, offering exceptional photostability and broad-spectrum protection against UV-A/UV-B radiation. Widely used in plastics, coatings, and adhesives, it prevents yellowing and mechanical degradation while maintaining clarity and long-term durability under intense sunlight exposure.
  • basf tinuvin 326 uv absorber_8337b8bb
  • basf tinuvin 326 uv absorber_8337b8bb

Features Of BASF Tinuvin 326 UV Absorber

  1. Highly effective benzotriazole-type UV absorber with strong absorption in the 300–400 nm range.

  2. Excellent thermal and hydrolytic stability, suitable for high-temperature polymer processing.

  3. Low volatility and good compatibility with a broad range of polymers including polyolefins, PVC, and engineering plastics.

  4. Provides long-term protection against photooxidative degradation without significant color formation.

  5. Compatible with other additives such as hindered amine light stabilizers (HALS) for synergistic stabilization effects.

Typical Applications Of BASF Tinuvin 326 UV Absorber

  1. Automotive interior components (e.g., dashboards, trim, seat fabrics).

  2. Outdoor building materials (e.g., PVC window profiles, roofing membranes, cladding).

  3. Agricultural films and greenhouse covers requiring extended UV durability.

  4. Packaging films for UV-sensitive consumer goods and pharmaceuticals.

  5. Coatings and inks for exterior signage and industrial finishes.

Specifications Of BASF Tinuvin 326 UV Absorber

Chemical TypeBenzotriazole derivative (2-(2H-benzotriazol-2-yl)-4-tert-butylphenol)
Product FormFree-flowing crystalline powder
AppearanceOff-white to pale yellow crystalline solid
Melting Point135–139 °C
Solubility (20 °C)Good in chlorinated hydrocarbons, aromatic solvents; low in water and aliphatic hydrocarbons
UV Absorption Max (in CHCl₃)~340 nm and ~305 nm
Primary ApplicationsPolyolefins, PVC, ABS, polycarbonate, coatings, adhesives
Key FeaturesUV absorption, thermal stability, low migration, polymer compatibility


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