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.
Even in normal use, brake pads wear and must be replaced. Amazon.com sells brake pads to fit most vehicles sold in the United States that are equipped with disc brakes. Brake pads differ in the type of friction material used. Brake pads made with organic materials are standard equipment on some vehicles. Organic brake pads are quiet and run clean, but wear rapidly and can lose effectiveness when hot.