Rubber extrusion is a part forming process. During this process, a high-pressure extrusion machine forces synthetic or natural rubber materials through a shaped die in order to get it to take on its section profile, shape or cut.

Extruded parts are forced through a die of the required cross section under pressure of an extruder. These parts are often made with soft, unvulcanized rubber compounds that are fed into the extruder.

The resulting extrusion leaves the rubber in a soft, pliable state. In this case, the finished extruded products will typically need to be vulcanized, or hardened, before they are rendered usable.