Delrin® 100AF Blend Calendered Sheet

These thin gauges are produced by calendering - the polymer is drawn between heated precision rollers into flat stock of even thickness, rather than being extruded thick and machined down. The result is a smooth surface on both faces, tight gauge consistency across the sheet and less internal stress than machined plate, which matters in a bearing material that will be punched into small parts. Stock runs 1/32" to 3/16" in five gauges, in sizes from 12"x12" to 24"x48"; thicker sections come as extruded plate.

With PTFE fibre already dispersed through the acetal, thin calendered stock is used where a part has to slide without lubrication and cannot be greased: thrust washers, wear pads, bearing shims, low-friction slide strips, seal backup rings and face washers in food, packaging and light mechanical assemblies. Parts are typically punched or die-cut straight from the sheet rather than machined, which suits short runs and prototypes. Expect the same dry-running behaviour as the extruded grade, in sections too thin to machine economically.