Product Category / Light Stabilizers

Light Stabilizers — HALS, UV Absorbers, Tinuvin Equivalents

12 polymer and coating light stabilizer SKUs across three chemistry families — HALS hindered amine stabilizers (Tinuvin-770 / 292 / 152 / 622, plus blended stab-50), pre-formulated HALS + UVA synergistic packages, and UV absorbers spanning benzotriazole (UV-326 / 328 / 384), triazine (Tinuvin-400 reactive), and benzophenone (UV-531). Direct functional alternatives to BASF Tinuvin, Chimassorb, and Cyasorb stabilizer ranges. 25 kg MOQ, 2–4 week lead time, full CoA and migration testing on request.

HALS — Hindered Amine Light Stabilizers

Free-radical-scavenging stabilizers that interrupt photo-oxidation propagation in polymer and coating film. Tinuvin-770 (low MW, mobile), Tinuvin-292 (low alkalinity for acid-sensitive systems), Tinuvin-152 (triazine-based, low extraction), HALS-622 (oligomeric, low volatility for outdoor / hot-process applications), and a blended stab-50 cost-performance grade. Direct functional alternatives to BASF Tinuvin and Chimassorb / Cyasorb HALS ranges.

HALS Light Stabilizer Tinuvin 770

CAS 52829-07-9

Tinuvin 770 hindered amine light stabilizer (HALS) for exterior coatings and polyolefins. Radical scavenging mechanism.

HALS Light Stabilizer Tinuvin 292 Type (Low MW Hindered Amine)

CAS 41556-26-7

Low-MW liquid HALS (Tinuvin 292 type) for automotive clearcoats, industrial topcoats and wood coatings. Excellent compatibility in thin-film…

HALS Light Stabilizer Tinuvin 152 Type (Oligomeric, Low Extractability)

CAS 741687-98-9

Oligomeric HALS (Tinuvin 152 type, MW ~3500) for automotive OEM coatings, powder coatings and high-durability topcoats requiring low extract…

Oligomeric HALS 622

CAS 65447-77-0

Oligomeric HALS 622 light stabilizer. Low volatility delivers excellent weathering resistance for exterior coatings and automotive clearcoat…

HALS/UVA Combination Stabilizer Blend (50:50)

Ready-to-use HALS/UVA 50:50 liquid blend — simplifies UV stabilization in industrial clearcoats, wood coatings and waterborne topcoats. Sing…

HALS + UV Absorber Pre-Formulated Packages

Synergistic HALS / UVA blend packages — proper ratio of UV absorber (front-of-film UV blocking) plus HALS (in-film radical scavenging) optimised for the most common polymer matrices. Drop-in for coil coatings, outdoor PVC, polyolefin masterbatch, and architectural paint where formulators want a single SKU instead of dosing two stabilizers.

HALS + UVA Combined Package HUP-50

Pre-blended HALS and benzotriazole UV absorber at optimized 1:1 ratio for outdoor architectural coatings. Simplifies dosing and replaces two…

HALS + UVA Stabilizer Package HUP-50

Nano-TiO2 UV dispersion, 30% active, <20 nm particles. Transparent UVA/UVB protection for clearcoats and architectural topcoats. No opacity.…

UV Absorbers — Benzotriazole, Triazine, Benzophenone

Tinuvin-326 / 328 / UV-384 benzotriazole absorbers (broad UVA + UVB coverage, low yellowing, the standard for coil and automotive coatings). Tinuvin-400-type reactive triazine for high-temperature stability and waterborne systems. UV-531 benzophenone for cost-optimised plastic-pigment masterbatch and PVC films. Choose by application temperature, expected outdoor life, and substrate sensitivity.

UV Absorber Tinuvin 326

CAS 3896-11-5

Tinuvin 326 benzotriazole UV absorber for exterior coatings and automotive refinish. Effective UV protection at 300–380 nm.

UV Absorber Tinuvin 328 Type (Benzotriazole)

CAS 25973-55-1

Benzotriazole UVA Tinuvin 328 type — UV absorber for wood topcoats, industrial coatings and PU clearcoats. High molar extinction, broad abso…

UV Absorber UV-384 (Benzotriazole)

CAS 127519-17-9

UV-384 benzotriazole UV absorber delivering low volatility and broad-spectrum UV protection. Excellent compatibility with waterborne and hig…

UV Absorber Tinuvin 400 Type (Triazine-based, Reactive)

CAS 153519-44-9

Tinuvin 400 type triazine UVA — high-MW liquid UV absorber for waterborne 2K PU, automotive basecoats and coil coatings. Low extractability.

UV Absorber UV-531 (Hydroxybenzophenone)

CAS 1843-05-6

UV-531 benzophenone UV absorber for solventborne coatings and wood finishes. Broad UVA absorption prevents yellowing and chalking. CAS 1843-…

Need stabilizer selection or QUV testing support?

Coatingsink technical team provides HALS / UVA blend ratio guidance, QUV / Atlas Ci3000 accelerated weathering correlation, and Tinuvin / Chimassorb / Cyasorb drop-in equivalence. Samples from 100 g on request.

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