UV Absorber 327 is a benzotriazole type ultraviolet light absorber(UVA), imparting good lightstability for plastics and other organic polymers.
UV Absorber 328 is a strong absorber of ultraviolet radiation in the 290-400nm region. It has good chemical stability, light color, little volatility, good compatibility with polyolefin and other resins, good storage stability.
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