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Dispersions, Resins and Additives

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

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Long photo-permanence; Long wavelength absorbance

  1. 1
    TINUVIN 99-2
    UVA for medium performance solvent-based coatings.
  2. 2
    TINUVIN 384-2
    Multi-purpose UVA for medium to high durability requirements; minimum color impact in refinish clear coat applications.
  3. 3
    TINUVIN 900
    UVA for medium to high durability requirements in powder and coil coating applications; limited solubility in organic solvents.
  4. 4
    TINUVIN 1130
    UVA for medium performance solvent-based and water-based coatings (may require addition of cosolvent).
  5. 5
    TINUVIN 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.

Free radical scavengers

  1. 1
    TINUVIN 123
    Non-basic HALS for acid catalyzed and oxidative curing coatings; improves yellowing resistance in direct-fired gas ovens.
  2. 2
    TINUVIN 292
    Multi-purpose basic HALS for various applications, use in water-borne coatings may require addition of cosolvents, may interact with sensitive dispersion binders.

Long photo-permanence; High extinction coefficient

  1. 1
    TINUVIN 400
    Blue shifted UVA for high durability requirements in clear coat applications including UV curing systems; excellent spectral coverage in combination with TINUVIN 479.
  2. 2
    TINUVIN 405
    Blue shifted UVA for high durability requirements in powder clear coats; excellent spectral coverage in combination with TINUVIN 479.
  3. 3
    TINUVIN 477
    Red shifted UVA with high extinction coefficient; for high durability wood coating requirements; allows <1% transmittance up to 370nm.
  4. 4
    TINUVIN 479
    UVA 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

  1. 1
    TINUVIN 5050
    UVA / HALS blend for solvent-based applications.
  2. 2
    TINUVIN 5060
    UVA / non-basic HALS blend for solvent-based oxidative curing coatings
  3. 3
    TINUVIN 5151
    UVA / HALS blend for solvent-based coatings; use in water-based coatings may require addition of cosolvent.
  4. 4
    TINUVIN 5248
    UVA / HALS blend for high performance solvent-based applications.

Low/zero VOC compositions; Stir-in, non-settling material

  1. 1
    TINUVIN 400-DW (N)
    Blue shifted UVA for water-based high performance applications; excellent spectral coverage in combination with TINUVIN 479-DW.
  2. 2
    TINUVIN 479-DW (N)
    UVA with extremely high extinction coefficient for highest durability requirements in water-based clear coats; specifically suited for thin film applications.
  3. 3
    TINUVIN 5333-DW (N)
    High performance UVA / non-basic HALS blend for water-based applications with broad spectral coverage.