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Recent content by BE05157

  1. BE05157

    blueing after ageing of rigid PVC with stab Ca/Zn ?

    In contrary to what we expected, a rigid PVC sheet (kw 66), stabilized with Ca/Zn soap (3.5 phr, with anti-UV Tinuvin 320 is becoming blue after ageing in a weatherometer. We suspect interaction between stabilizer and anti-UV. Do you have already heard baout something like that ? Best...

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