Consisting of a significant range of synthetic or semi-synthetic organic compounds, plastics are a versatile material. Due to their low cost, ease of manufacture, durability and weight, plastics are used in a multitude of products of different scale.
Utilizing some of the same parts manufacturing processes as cast and extruded metals, the secondary processes are much the same. Finishing marks, gates, parting lines, etc. all need to be removed or cleaned up before parts are usable.