Delrin® 150 Calendered Sheet

Calendering is what makes these thin gauges possible. Rather than extruding a thick slab and machining it down, the polymer is drawn between heated precision rollers, producing flat stock in even, repeatable thicknesses with a smooth surface on both faces and far less locked-in stress than a sawn slice of plate. Stock runs from 1/32" to 1/4" in ten gauges and sheet sizes from 12"x12" up to 24"x48". Above 1/4", extruded Delrin® 150 plate is the right product.

Thin calendered acetal is the workhorse for parts cut, punched or die-stamped rather than machined: washers, shims, spacers, thrust and wear faces, gaskets, insulating pads, seal backups, slide strips and low-friction liners. The flatness and consistent gauge matter most in stacked or sealing assemblies, where a few thousandths of variation across a sheet shows up as a leak or a bind. It shears and punches cleanly at these thicknesses, and the low moisture pickup of acetal keeps parts on-size in wet service.