LOWILITE™ 28 benzotriazole-type UV light absorber provides strong protection from degradation for a variety of polymers when exposed to UV in the range of 290–400 nm.
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LOWILITE™ 28 is a strong benzotriazole UV light absorber that prevents the yellowing and degradation of various polymers, including two-part epoxies and urethanes. LOWILITE™ 28 UV stabilizer absorbs harmful UV radiation, dissipates the radiation as heat, and protects the polymer additives behind the entire product.
Color: Off-white
White: Powder
CAS number: 25973-55-1
Bulk density: 260 kg/m³
Molecular weight: 351 g/mol
Specific gravity (@ 25°C): 1.17
Melting point: 80°C
Flash point: 230°C
Primary Chemistry:
2-(2'-Hydroxy-3',5'-di-t-amylphenyl) benzotriazole
Degradation of polymers in the UV range of 290–400 nm
Yellowing, discoloration, and degradation of polymers when exposed to light or UV radiation
Compatibility of UV stabilizers with two-part epoxy and polyurethane formulations
Unsaturated polyesters
Acrylics
Thermoplastic urethanes
Moisture-cured urethanes
Two-part epoxies and urethanes
Oil alkyds
Thermosetting acrylic enamels
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