After the color number, the coating type is designated.
2-08-2018, 13:20
The figure below, for example 3005, indicates the color of the corrugated board.
After the color number, the coating type is designated. PE is a polyester, AK - acrylic, PVC - polyvinyl chloride, PVDF - polyvinylendenfluoride coating, PUR - polyurethane