UV absorbers
TINUVIN® and CHIMASSORB® UV absorbers (UVA) for water-based, solvent based, and solvent-free formaulations
Organic coatings and inks with aesthetical, protective, and other functional properties are exposed to a variety of environmental and artificial factors such as solar radiation, humidity, temperature change, microbiological attack, air pollutants, and many more. We offer a comprehensive portfolio of UVAs that on their own are insufficient for protecting the surface of a coating.
UVAs alone are sufficient in preventing both the colorant fading of coatings and inks as well as the yellowing of resins. By filtering out harmful UV radiation they provide protection against the degradation of both coatings and substrates. TINUVIN, Uvinul®, and Chimassorb UVAs prevent the degradation of coatings, adhesives, and substrates.
Key features and benefits
- Long-term durability
- Lower DFT (Dry film thickness)
- Excellent long-term color retention
- Easy stir-in processing
- Solutions for aqueous and solvent-based formulations
- Sustainable products
- Qualification for low-VOC or VOC-free labeling
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1TINUVIN 400-DW (N)Blue shifted UVA for water-based high performance applications; excellent spectral coverage in combination with TINUVIN 479-DW
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2TINUVIN 477-DW (N)Red shifted UVA for high performance water-based wood coatings.
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3TINUVIN 9945–DW (N)Multi-purpose UVA for medium to high durability requirements for water-based formulations.
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1TINUVIN 384-2Multi-purpose UVA for medium to high durability requirements; minimum color impact in refinish clear coat applications
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2TINUVIN 400Blue shifted UVA for high durability requirements in clear coat applications including UV curing systems; excellent spectral coverage in combination with TINUVIN 479
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3TINUVIN 477Red shifted UVA with high extinction coefficient; for high durability wood coating requirements; allows <1% transmittance up to 370nm
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1TINUVIN 405Blue shifted UVA for high durability requirements in powder clear coats; excellent spectral coverage in combination with TINUVIN 479
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2TINUVIN 479UVA with extremely high extinction coefficient; for highest durability requirements in clear coats, powder coatings or UV curing systems; specifically suited for thin film applications
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3TINUVIN 900UVA for medium to high durability requirements in powder and coil coating applications; limited solubility in organic solvents
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4TINUVIN 928UVA for medium to high durability requirements in powder and coil coating applications; excellent solubility in organic solvents.
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5CHIMASSORB 81Solid UV absorber of the 2-hydroxy-benzophenone class