It is a special product with double-sided adhesive peel-off / reattach adhesive used to secure the cliché to the Printing Cylinder or Acetate. It does not leave adhesive residue on the cylinder, cliché or acetate during disassembly. Thanks to its wavy or embossed protector, it does not curl during assembly and does not cause air bubble problems. It is easy to expose. It is available in PVC, Fabric, and Foam versions suitable for different cliché thicknesses.