GM's 3800 valve cover( BMC 685 )was a one on one replacement for die-cast aluminum. It is currently used on over 9 different models and is the longest-running passenger car valve cover application in the industry
Since the 1980's, BMC 304 have been used in headlamp reflector applications. BMC 304 offers compatibility with coatings and adhesives that allow designers to utilize complex reflector shapes for optimum performance.