Carbon Fiber Epoxy Doctor Blade

Common carbon fiber blade thicknesses are 1.5, 2 and 3 mm. Most blades are black in color. From blade to blade there is a big difference in the amount of carbon in the blade composition, and similarly to fiber glass blades there is a wide variety of resins used.
The cost of carbon blades varies a lot from manufacturer to manufacturer, and even within a producer's product range. However the benefits can be huge comparing cost to runtime of the blade. Thus, it's very challenging and important for mills to determine which specific type and formulation of carbon fiber blade to use.
Most mills require a doctor blade expert to assist with recommendations, trials and follow-ups. The main benefit of using a carbon blade is the very low friction coefficient. Stated another way, carbon blades transport heat from the blade edge very effectively. If it were possible to achieve 100% heat transfer, it would effectively be frictionless and the doctor would not wear at all. Water lubrication of the rolls is a powerful means of decreasing friction and reducing blade wear.