The sheets should not be left outside within the Solar and elements While using the protective masking. This may end up in the protecting masking not coming off very easily or the printing currently being superimposed around the floor on the Acrylic (Perspex® acrylic & other branded acrylic); Polycarbonate; Plexiglas. http://gunneraoxgo.imblogs.net/12297145/top-latest-five-composite-cladding-dalby-urban-news