Chiguard

Chiguard® 380W HXA UV2900 is a highly efficient and non-staining UV absorber, covering both of UV-B and UV-C regions up to 400 nm. It is based on benzoxaxinone structure which delivers a shortterm heat stability up to 350 °C and a long term heat stability up to 160 °C. By a proprietary process, Chiguard® 380W is made to dissolve quickly in PET resin and to give a transparent appearance even with high dosage (as demonstrated in the Comparative Data Section below).

Chiguard® UV-234 belongs to the family of substituted benzotriazoles which protect against ultraviolet radiation. Compared to other Chitec’s UV absorbers, Chiguard® 234 has lowest volatility which makes it especially useful for those applications involving high temperature processing.