• Product Overview: UV-1130

    UV-1130 is a liquid hydroxyphenyl benzotriazole-class ultraviolet absorber. It is a mixture of three components: monomeric 3-(2H-benzotriazol-2-yl)-5-(tert-butyl)-4-hydroxybenzenepropanoic acid PEG-300 ester (CAS 104810-48-2), its dimeric form (CAS 104810-47-1), and polyethylene glycol 300 (CAS 25322-68-3) . This unique liquid blend offers excellent compatibility with coating systems, high thermal stability, and resistance to extraction, making it the industry standard for automotive and industrial coatings [citation:1][citation:2]. It effectively absorbs UV radiation in the 280–380 nm range with a peak at 343 nm

    Property Typical Value

    Appearance Yellow to light amber viscous liquid

    Composition Monomer 46-52%

    Dimer 36-40%

    PEG-300 10-14%

    Total Content ≥99.0%

    Density (20°C) 1.15–1.18 g/cm³

    Viscosity (20°C) 7200–7600 mPa·s (up to 7400±2%)

    Molecular WeightMonomer 637

    Dimer 975

    PEG -300 ~300

    Transmittance (460 nm) ≥95%

    Transmittance (500 nm) ≥97-98%

    Solubility & Compatibility Profile

    Parameter Details

    Solubility (20°C g/100g) Soluble in benzene, styrene, ethyl acetate, toluene; slightly

    soluble in ethanol; insoluble in water

    Polymer Compatibility PC, PVC, PS, PMMA, ABS, Polyesters, PE, PP, PU, PA,

    Epoxy, EVA

    Recommended Dosage PC: 0.15-0.3%; PVC: 0.2-0.5%; Coatings: 1.0-3.0%; PU:

    0.3-1.0%; Unsaturated Polyester: 0.2-0.4%

  • Performance Advantages
    Liquid Form: Easy to handle, pump, and incorporate into solvent and waterborne coatings
    High Durability: Excellent resistance to high temperature and extraction, ideal for demanding automotive and industrial applications
    Broad UV Absorption: Covers 280–380 nm, peak 343 nm, protecting coatings from UV-A and UV-B damage.
    Waterborne Compatible: Easily emulsified for water-based systems .
    Synergistic: Excellent synergy with HALS (e.g., LS-292, LS-123) to prevent gloss loss, cracking, blistering, and delamination
    UV-329 is utilized across diverse sectors requiring UV protection with minimal color impact
    Polycarbonate (PC) sheets & moldings
    PVC profiles & rigid films
    Polystyrene (PS) & ABS
    PMMA (acrylic) sheets
    Polyester (PET/PBT) engineering plastics
    Polyurethane (PU) elastomers
    Coatings & industrial paints
    Adhesives & sealants
    Optical lenses & frames
    Automotive interior parts
    Primary Applications
    Polycarbonate (PC): UV-329 is particularly recommended for PC, effectively preventing yellowing and maintaining optical clarity. It is used in automotive glazing, headlamp lenses, and optical media.
    Coatings & Adhesives: In industrial coatings and adhesives, UV-329 provides excellent protection against UV-induced degradation, gloss loss, and delamination
    Engineering Plastics: Suitable for high-temperature processed plastics like PC, PA, PBT, and PET, maintaining mechanical properties during outdoor exposure
    Storage Conditions
    Store in original sealed container in a cool, dry, well-ventilated area .
    Keep away from direct sunlight, heat sources, and oxidizing agents .
    Recommended temperature: 5-25°C, relative humidity <60%].
    Shelf life: 24 months from manufacture date when stored properly . (Some suppliers specify 12 months )
    Standard Packaging
    20 kg carton or fiber drum with inner PE liner
    25 kg carton or cardboard box
    Industrial & Wood Coatings
    UV-292 is used in wood coatings, anti-corrosive coatings, and general industrial finishes to maintain appearance and prolong service life .
    Standard Packaging
    25 kg plastic drum .
    180-200 kg plastic-lined iron drum .

  • Frequently Asked Questions (FAQ)

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