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.
Organic brake pads, sometimes called nonasbestos organic brake pads, are made from natural materials liked glass and rubber, as well as resins that can withstand high heat. In fact, the high heat helps to bind the brake pad materials together. Kevlar is also an important component in many organic brake pads. An advantage of organic brake pads, including Kevlar brake pads, is that they're made of materials that don't pollute as they wear and they're easier to dispose of, too.