| 摘要 |
PVC surfaces with a covering layer of polymethyl acrylate or a copolymer thereof applied thereto in a strongly adhesive manner and containing colour pigments and UV stabilisers are additionally protected against the effects of sunlight. To this end, the covering layer is formed in such a way that it does not absorb IR radiation. IR-reflecting pigments and/or dyes in the covering layer or in the PVC layer reflect the IR radiation on incidence. The addition of UV stabilisers additionally makes the covering layer virtually opaque to UV. Warming and degradation by sunlight are thereby avoided, which is particularly important for external building components, such as window frames, etc.. |
