Light Stabilizers

BASF Tinuvin® & Chimassorb® UV Absorber Series

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product name

chemical type

physical form

Melting point (°C)

Molecular weight (g/mol)

Key Properties and Applications

water-based UV absorber

Tinuvin®
400-DW (N)

Hydroxyphenyltriazine

Liquid, 20% Active Ingredient

mixture

Blue-shifted UV absorber for waterborne high performance applications; larger spectral range when combined with Tinuvin® 479-DW

Tinuvin®
477-DW (N)

Hydroxyphenyltriazine

Liquid, 20% Active Ingredient

mixture

Red-shifted UV absorber for high performance waterborne wood coatings

Tinuvin®
479-DW (N)

Hydroxyphenyltriazine

Liquid, 20% Active Ingredient

mixture

UV absorber with very high extinction coefficient for the highest durability requirements of waterborne varnishes; especially suitable for thin film applications

Tinuvin® 1130

benzotriazole

liquid

mixture

UV absorber for medium performance solventborne and waterborne coatings (cosolvent may be added)

Tinuvin®
9945-DW (N)

benzotriazole

Liquid, 45% Active

mixture

Multipurpose UV absorber for high durability requirements in waterborne formulations

Solvent-based UV absorber

Chimassorb®
81 (ED)

Benzophenone (BP)

solid

47-51

326

UV absorber for moderate durability requirements; stable gel coat quality

Tinuvin® 99-2

Benzotriazole (BTZ)

Liquid, 95% in MPA**

452

UV absorber for medium performance solventborne coatings

Tinuvin® 326

Benzotriazole (BTZ)

solid

138-142

316

Chlorinated red-shifted UV absorber, with transmittance <1% at wavelengths up to 420nm; limited solubility in organic solvents

Tinuvin® 384-2

Benzotriazole (BTZ)

Liquid, 95% in MPA**

452

Multipurpose UV absorber for medium to high durability requirements; minimal color impact in refinish varnish applications

Tinuvin® 900

Benzotriazole (BTZ)

solid

138-142

448

UV absorber for high durability requirements in powder coatings and coil coatings; limited solubility in organic solvents

Tinuvin® 928

Benzotriazole (BTZ)

solid

109-113

442

UV absorber for high durability requirements in powder coatings and coil coatings; excellent solubility in organic solvents

Tinuvin® 970

Benzotriazole (BTZ)

solid

132-136

560

Highly red-shifted UV absorber to protect aromatic hydrocarbon epoxy resin systems; especially recommended for carbon or glass fiber reinforced composites; provides <1% transmittance at wavelengths up to 420nm

Tinuvin® 1130

Benzotriazole (BTZ)

liquid

mixture

UV absorber for medium performance solventborne and waterborne coatings (cosolvent may be added)

Tinuvin® Carboprotect®

Benzotriazole (BTZ)

solid

132-136

560

Tinuvin® 460

TRT, high gloss, thermal durability

solid

97-101

630

Red-shifted UV absorber with extremely high extinction coefficient; transmittance <1% at wavelengths up to 370 nm; limited solubility in organic solvents

Tinuvin® 477

TRT, high gloss, thermal durability

Liquid, 80% in MPA**

mixture

Red-shifted UV absorber with extremely high extinction coefficient; suitable for high durability requirements of wood coatings; transmittance <1% at wavelengths up to 370nm

Tinuvin® 400

Hydroxybenzotriazine (HPT), best light and thermal durability, does not interact with amines, strong bases or any metal catalysts

Liquid, 85% in propylene glycol methyl ether

647

Blue-shifted UV absorber for varnishes with high durability requirements, including UV-curing systems; large spectral range when combined with Tinuvin® 479

Tinuvin® 405

Hydroxybenzotriazine (HPT), best light and thermal durability, does not interact with amines, strong bases or any metal catalysts

solid

73-77

584

Blue-shifted UV absorber for high durability requirements of powder varnishes; large spectral range when combined with Tinuvin® 479

Tinuvin® 479

Hydroxybenzotriazine (HPT), best light and thermal durability, does not interact with amines, strong bases or any metal catalysts

solid

39-43*

678

UV absorber with very high extinction coefficient for the highest durability requirements of varnishes, powder coatings or UV-curing systems; especially suitable for thin film applications

*For specific product specifications and other recommended applications, please contact us.