CHEMK UV-1577 is a special UV absorber with low volatility, high molecular weight, high temperature resistance and low volatility. It has good compatibility with most polymers, additives and formula resins. Compared with the traditional benzotriazole UV absorber, the polycarbonate(PC) and polyester (PET,PBT) which have added UV-1577 have better weathering resistance, better UV absorbency and no effect on transparency. It is especially suitable for the processing and application of UV absorber for large amount, low volatilization and good compatibility, such as complex moulding products, flat / corrugated panels, double panels, thin films, co-injection molding or co-extrusion semi-finished products. It allows double-layer direct co-extrusion without the usual sublimation or precipitation problems of UV absorbers that may have been encountered in the past.
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