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

BASF Tinuvin 477 DW UV Absorber

BASF Tinuvin 477 DW is a high-performance, water-dispersible UV absorber from the Tinuvin series, offering excellent photostability and low volatility for coatings, inks, and adhesives. It provides superior UV protection without compromising clarity or compatibility, enabling durable, weather-resistant formulations with easy handling and reduced VOC impact.
  • basf tinuvin 477 dw uv absorber_97815ab3
  • basf tinuvin 477 dw uv absorber_97815ab3

Features Of BASF Tinuvin 477 DW UV Absorber

  1. High-performance benzotriazole-based UV absorber with broad-spectrum absorption (290–400 nm).

  2. Water-dispersible formulation enabling easy incorporation into aqueous systems without organic solvents.

  3. Excellent photostability and long-term UV protection for demanding outdoor applications.

  4. Low volatility and high thermal stability, suitable for processing up to 220 °C.

  5. Compatible with a wide range of waterborne polymers including acrylics, polyurethanes, and styrene-acrylic dispersions.

Typical Applications Of BASF Tinuvin 477 DW UV Absorber

  1. Waterborne architectural coatings for exterior walls and façades.

  2. Industrial maintenance coatings exposed to intense sunlight and weathering.

  3. Automotive refinish clearcoats and basecoats in aqueous formulations.

  4. Wood coatings for outdoor furniture and decking.

  5. Plastic coatings on metal substrates requiring durable UV resistance.

Specifications Of BASF Tinuvin 477 DW UV Absorber

Chemical TypeBenzotriazole derivative
Product FormAqueous dispersion
AppearanceOpaque white to slightly yellowish liquid
pH (1% aqueous dispersion)6.5 – 8.5
Active Content30.0 – 32.0 wt.%
Density (20 °C)1.02 – 1.06 g/cm³
Particle Size (D50)100 – 300 nm
Storage Stability≥ 6 months at 5–30 °C (unopened container)


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