Name: BASF Tinuvin 320 Benzotriazole UV Absorber
Brand: Guangzhou Eric Wei Chemical Co., Ltd.

Features Of BASF Tinuvin 320 Benzotriazole UV Absorber

Highly effective UV absorber based on the benzotriazole chemical class, offering strong absorption in the critical 290–400 nm UV range.
Excellent thermal and hydrolytic stability, ensuring consistent performance during high-temperature polymer processing and long-term outdoor exposure.
Good compatibility with a broad range of polymers including polyolefins, PVC, engineering plastics, and coatings.
Low volatility and minimal migration, supporting durable protection in thin films and demanding end-use environments.
Non-discoloring performance—maintains clarity and color fidelity in transparent and light-colored applications.

Typical Applications Of BASF Tinuvin 320 Benzotriazole UV Absorber

Automotive interior parts (e.g., instrument panels, trim, air vents) requiring long-term UV resistance and low VOC emission.
Exterior plastic components such as bumpers, grilles, and mirror housings exposed to intense sunlight and weathering.
Polyolefin-based agricultural films, greenhouse covers, and geomembranes requiring extended UV durability.
Coatings for metal and plastic substrates, including coil coatings and architectural finishes.
PVC profiles, window frames, and siding where thermal stability and color retention are critical.

Chemical Type	Benzotriazole derivative
Product Form	Free-flowing crystalline powder
Appearance	Off-white to pale yellow crystalline solid
Molecular Weight	350.4 g/mol
Melting Point	128–132 °C
Solubility (in Toluene)	~50 g/L at 20 °C
UV Absorption Max (λmax)	340 nm (in ethanol)
Primary Applications	Polyolefins, PVC, ABS, PC, coatings, adhesives

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