Injection molding use as shaping technique , that can be used for parts such as cups, cutlery, vials, caps, containers, housewares, and automotive parts such as batteries.
The related techniques of blow molding and injection-stretch blow molding are also used, which involve both extrusion and molding.
Various numbers of end-use applications for polypropylene is often possible because of the capability to tailor grades with specific molecular properties and additives during its manufacture.
For example, antistatic additives could add to assist polypropylene surfaces resist dust and dirt. Many physical finishing techniques can also be used on polypropylene, such as machining. Surface treatments could apply to polypropylene parts in order to help adhesion of printing ink and paints.