Specialty additives for UV curing & polymer protection

UV Absorber UV-1130 (PEG-300 esters of 3-[3-(2H-benzotriazol-2-yl)-4-hydroxy-5-tert-butylphenyl]propionic acid (mixture))
CAS No.104810-48-2 / 104810-47-1 / 25322-68-3
CategoryUV Absorbers
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UV Absorbers

UV Absorber UV-1130

PEG-300 esters of 3-[3-(2H-benzotriazol-2-yl)-4-hydroxy-5-tert-butylphenyl]propionic acid (mixture)

Liquid benzotriazole — heat and extraction resistant, emulsifiable for waterborne systems.

Product Description

UV-1130 is a liquid benzotriazole UV absorber mixture based on polyethylene glycol 300 esters, efficiently absorbing 300–400 nm radiation. Its liquid form is ideal for pumping and dosing in paint production and is miscible with coating solvents in any ratio.

The PEG-ester structure gives UV-1130 outstanding resistance to high bake temperatures and to extraction — films retain their absorption after prolonged rain wash-off and stoving, suppressing gloss loss, cracking, blistering and discoloration. It emulsifies readily, a rare high-efficiency UVA choice for waterborne industrial coatings.

Typical addition is 1–3% on resin solids, combined with liquid HALS such as UV-292 or UV-123 for a complete coating weathering package. Aolong UV-1130 offers consistent batch control of solids and viscosity.

Key Features

  • Liquid form — easy pumping and dosing
  • Resists high bake and rain extraction
  • Readily emulsifiable — suits waterborne systems
  • Complete package with liquid HALS

Applications

  • Automotive OEM and refinish coatings
  • Waterborne and solvent-borne industrial coatings
  • Coil coatings
  • Wood coatings and clears
  • High-durability machinery coatings

Specifications

CAS No.104810-48-2 / 104810-47-1 / 25322-68-3
Molecular FormulaMixture
Molecular WeightMixture
AppearanceYellow to light amber liquid
Active Content≥ 98.0%
Density (20 °C)≈ 1.1 g/cm³
Water (Karl Fischer)≤ 0.3%

Packaging & Storage

25 kg HDPE drum, 200 kg steel drum or 1 kg aluminum bottle. Store cool and dry; shelf life 24 months in original sealed packaging.

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