1.UV-329 protects polymers from UV radiation, helping to preserve the original appearance and physical integrity ofmolded articles, films, sheets, and fibers during outdoor weathering.
2.UV-329 exhibits strong absorbance in the 300-400nm region and minimal absorbance in the visible region (> 400 nm) of the spectrum, The absorption maxima are at 301nm and 342nm(e =14728.8 and 16666.8 L/mol *cm) in chloroform solution.
3.UV-329 is an effective light stabilizer for a variety of plastics and other organic substrates.
4.The use levels of Uv-329 range between 0.10 and 1.0%, depending on substrate and performance requirements of the finalapplication, The product can be used alone or in combination with other light stabilizers, antioxidants, functional stabilizersand additives, The use of UV-329 in combination with hindered amine light stabilizers is particularly noteworthy in that asynergistic performance is often observed.