... with low volatility, used in polystyrene, Perspex, polyester, Applications:UV-329 isa strong ultraviolet absorber in the 300-400 nm region ... combination with other stabilizers,such as antioxidants. The use ofUV-329 in combination with HALS is particularly noteworthy in that asynergistic ... performance is often observed.The use levels of UV-329 range between 0.10-1.0%,depending on substrate ...