What do automotive exterior parts include?

Automotive exterior parts are the system parts that use the most plastic materials among auto parts, mainly including bumpers, reversing mirrors, lights, door handles, front faces, panoramic sunroofs, etc.

Modern car exterior parts are generally formed by injection molding, and then sprayed or textured. As spray parts, in order to ensure consistency with the color of the car body and the quality of the paint, the spray paint system must be taken into consideration when selecting materials. For example, in North America, high-temperature baking systems are often used for car body paints. When selecting materials for exterior parts, materials that can withstand heat baking must be considered; as for leather parts, the color and aging resistance of the materials must be taken into consideration when selecting materials, and whether the design requirements are met.

Common interior materials at this stage include PP (polypropylene), ABS (acrylonitrile-butadiene-butadiene plastic), ASA (butadiene, acrylonitrile and acrylic vulcanized rubber mixture), POM (polyester chips), PA (polyester, Acrylic resin), PC (polycarbonate), PE (high-pressure polyethylene), etc., but the actual materials used in each part are very different. The following is a detailed introduction to the selection and application of materials for the actual parts system.