3M(TM) Cylinder Mount Build-Up Tape 1640 Clear, 18 in x 50 ft 40.0 mil, 1 per case Bulk 'This 0.040 inch (1.02 mm) tape helps improve print quality by allowing the use of thinner plates with existing cylinders. Can be left on the cylinder for multiple printing applications. 'Cylinder Mount Build-Up Tapes can be mounted on existing print cylinders. Any 3M(TM) Flexomount(TM), Cushion-Mount(TM) or Cushion-Mount(TM) Plus tape can be mounted to the non-linered side of Cylinder Mount Build-Up Tapes. Selecting a mounting system thickness will depend on the press configuration and the plate thickness being used.25 Yard (22.8 m) Roll Length. Standard Bulk Widths 18 inch(457.2 mm), 36 inch (914.4 mm) All thicknesses are nominal performance thicknesses for which the products are targeted to perform during the flexographic printing operation.