TINUVIN® light stabilizers and UV absorbers
TINUVIN performance additives for UV protection and durability are designed to protect and extend the lifetime of coatings. Our portfolio contains two types of light stabilizers: Ultraviolet Light Absorbers (UVA) and Hindered-Amine Light Stabilizers (HALS). Based on the nature of the light absorbing unit, several types of UVA are commercially available. Benzotriazoles offer the broadest spectral coverage.
HALS trap free radicals maintain surface properties such as gloss and prevent cracking and chalking of paints. When combined, UVA and HALS provide synergistic effects and offer simplicity of formulation.
Key features and benefits
- Extended lifetime of UV-sensitive substrates
- Enhanced color retention
- Improved durability of coatings and adhesives
Applications
- ACE
- Automotive coatings
- Building materials
- Construction coatings
- Elastomeric roof coatings
- Furniture and wood coatings
- Industrial coatings
- Marine coatings
- Overprint varnish (OPV)
- Printing and packaging
Long photo-permanence; Long wavelength absorbance
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1TINUVIN 99-2UVA for medium performance solvent-based coatings.
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2TINUVIN 384-2Multi-purpose UVA for medium to high durability requirements; minimum color impact in refinish clear coat 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 1130UVA for medium performance solvent-based and water-based coatings (may require addition of cosolvent).
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5TINUVIN Carboprotect®Very red shifted UVA for protection of aromatic epoxy systems; especially recommended for carbon or glass fiber reinforced composites; allows <1% transmittance up to 420nm.
Long photo-permanence; High extinction coefficient
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1TINUVIN 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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2TINUVIN 405Blue shifted UVA for high durability requirements in powder clear coats; 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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4TINUVIN 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.
Synergistic combinations of UVA and HALS with ease of handling
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1TINUVIN 5050UVA / HALS blend for solvent-based applications.
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2TINUVIN 5060UVA / non-basic HALS blend for solvent-based oxidative curing coatings
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3TINUVIN 5151UVA / HALS blend for solvent-based coatings; use in water-based coatings may require addition of cosolvent.
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4TINUVIN 5248UVA / HALS blend for high performance solvent-based applications.
Low/zero VOC compositions; Stir-in, non-settling material
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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 479-DW (N)UVA with extremely high extinction coefficient for highest durability requirements in water-based clear coats; specifically suited for thin film applications.
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3TINUVIN 5333-DW (N)High performance UVA / non-basic HALS blend for water-based applications with broad spectral coverage.