Plastic moulding is a manufacturing process, for making parts from thermosetting plastic and thermoplastic materials. In the plastic moulding process, material is fed into a heated barrel, it is then mixed and forced into a mould cavity, where it will harden, and cool to the shape of the mould cavity. After a product has been designed, the plastic injection moulds are made by a mould maker or toolmaker. The plastic injection moulding is made from metal, either aluminium or steel and machined to form the features of the required part. Plastic moulding is used to manufacture many different things, such as bottle caps, milk cartons, children’s toys, dashboards and most other plastic products available today. Some advantages of plastic mouldings are high tolerances. High production rates, low labour costs and minimal scrap losses. Plastic moulding is used widely for manufacturing a variety of parts, from the smallest component, to large body panels of cars.