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

BASF Tinuvin 350 Benzotriazole UV Absorber

BASF Tinuvin 350 is a high-performance benzotriazole-based UV absorber offering exceptional photostability and thermal resistance. Designed for demanding polymer applications like polyolefins and engineering plastics, it effectively prevents UV-induced degradation, yellowing, and mechanical property loss. Its low volatility and excellent compatibility ensure long-term protection without blooming or migration.
  • basf tinuvin 350 benzotriazole uv absorber_2187f835
  • basf tinuvin 350 benzotriazole uv absorber_2187f835

Features Of BASF Tinuvin 350 Benzotriazole UV Absorber

  1. Highly effective UV absorber based on the benzotriazole chemistry, offering strong absorption in the critical 290–400 nm UV range.

  2. Excellent compatibility with a broad range of polymers including polyolefins, styrenics, engineering plastics, and coatings.

  3. Outstanding thermal and hydrolytic stability, enabling use in high-temperature processing (e.g., extrusion, injection molding).

  4. Low volatility and minimal migration, ensuring long-term UV protection without surface blooming or plate-out.

  5. Good lightfastness and synergistic performance when combined with hindered amine light stabilizers (HALS) and other additives.

Typical Applications Of BASF Tinuvin 350 Benzotriazole UV Absorber

  1. Automotive interior and exterior plastic components (e.g., dashboards, bumpers, trim).

  2. Outdoor construction materials such as PVC window profiles, cladding, and roofing membranes.

  3. Packaging films for agricultural mulch, greenhouse covers, and UV-sensitive consumer goods.

  4. Industrial coatings for metal and plastic substrates requiring durable gloss and color retention.

  5. Technical fibers and nonwovens used in geotextiles, awnings, and outdoor furniture.

Specifications Of BASF Tinuvin 350 Benzotriazole UV Absorber

Chemical TypeBenzotriazole derivative
Product FormFree-flowing off-white to light yellow crystalline powder
AppearanceCrystalline solid, free from visible impurities
Primary ApplicationsPolyolefins, PVC, PS, ABS, PC, coatings, adhesives
Key FeaturesUV absorption (λmax ≈ 340 nm), low volatility, polymer-compatible
BenefitsLong-term weatherability, color stability, process robustness
Recommended Use Level0.1–1.0 wt% depending on polymer and end-use requirements
Storage ConditionsStore in cool, dry place; keep container tightly closed


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