Bemis Associates UK has created a new duplex centrewind slitter for converting thin polymer films into narrow seam tapes for waterproof clothing . The 735 model was custom built for Bemis to handle 1600mm wide mill rolls of films up to 10 microns and polymer, paper and fabric composites in heavier gauges. It slits to a minimum width of 13mm at speeds as high as 450mm. Run lengths range from 250 to 3000 meters