Curing is a term in polymer chemistry and process engineering that refers to the toughening or hardening of a polymer material by cross-linking of polymer chains, brought about by electron beams, heat or chemical additives.esin curing [edit]. Despite the wide variety of thermoset resin formulations (epoxy, vinylester, polyester, etc.), their cure behavior is qualitatively identical.
The brake drum mounts on the axle or wheel hub, and some drums incorporate the hub. Most brake drums are made of solid cast iron, but there are also steel and aluminum drums with cast iron liners. The machined friction surface on all drums is cast iron.
Asbestos Brake Linings, Gaskets & Pads - Bendix, Raybestos, American Brakeblok (Abex),Wagner, EIS, Gatke, Maremont (Grizzly brakes), Johns Manville, Fomoco, Delco and Mopar. Until as late as the 1990s, asbestos was used in automotive brake linings and disc pads. Many brake shoe linings contained up to 70% asbestos. Asbestos helped withstand the heat of the friction created when, through the hydraulic pressure of the braking mechanism, brake shoes were pressed against the interior of the wheel drums to stop the wheels from turning.