Many of the new plastic molding process are driven by the development of the automobile industry. In the highly competitive automobile market today, rapid prototyping companies will always have to develop new plastic processing technology with continuous innovation in order to meet the needs of vehicles being lightweight so as to occupy more future market share.

RIM (Reaction Injection molding) is one of a variety of new plastic molding process. Because of its high efficiency, short production cycle, simple process, low cost as well as other advantages, RIM is suitable for the product development of small batch trial production, and low volume production, simple covers and large-scale thick-walled and uneven wall thickness products.

Preproduction of exterior trimming parts includes front and rear headlights, bumper prototypes etc. The trial process of rapid prototypes for automobile lamps are as follows:
http://www.kaiao-rprt.com/Technique/rapid-prototypes-for-automobile-exterior-parts.html