© 2019 Kadant Solutions Division Challenge A lightweight coated paper machine in the Northeast U.S. ran FiberflexTM doctor blades on the 4 th press felt guide roll. The roll is 0-1 P&J hardness rubber and the machine runs at 3,600 fpm. A DST-E holder is used in this position. The roll has very little lubrication and mill personnel would often smell a burning odor and see rapid roll surface wear. The mill determined the friction was high on the Fiberflex doctor blade causing it to melt. Solution A PlusTek C doctor blade was recommended because the carbon fibers in the blade would provide some lubrication in this application. With the PlusTek C doctor blade, the blade life was two months with only 3/8” of blade wear. Results The carbon fibe

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