Powder priming of SMC nears commercialization.A unique research collaboration has resulted in the development of interrelated in·ter·re·late tr. & intr.v. in·ter·re·lat·ed, in·ter·re·lat·ing, in·ter·re·lates To place in or come into mutual relationship. in technologies that allow sheet molding compound (SMC SMC Saint Mary's College SMC Santa Monica College SMC Solaris Management Console SMC Smooth Muscle Cell SMC Small Magellanic Cloud (also see LMC) SMC Safety Management Certificate (maritime shipping) ) to be powder primed. A new SMC primer from Red Spot Paint & Varnish Co., Evansville, Ind., and a new low-moisture-content polyester resin system from AOC AOC, n an acronym for the Aromatherapy Organizations Council. , Colliersville, Tenn., are key components of a flew approach that is near commercialization. General Motors R&D spearheaded the multipronged mul·ti·pronged adj. 1. Having many prongs. 2. Involving several different directions, aspects, or elements: a multipronged attack; a multipronged tax bill. industry effort, which also included Tier 1 SMC molder Meridian Automotive Systems, Allen Park, Mich. In response to environ car makers have pushed for powder primers for steel and SMC body parts as a replacement for liquid solvent-based systems in order to reduce volatile organic compounds (VOCs) and overspray Overspray refers to the application of any form of paint, varnish, stain or other non-water soluble airborne particulate material onto an unintended location. This concept is most commonly encountered in graffiti, auto detailing, and when commercial paint jobs drift onto unintended waste. However, research showed that powder-primed conventional SMC develops a leather-like surface during the primer s high-temperature cure cycle. The reason, according to GM, was a combination of air and moisture that are released when a common low-profile additive is used. In response, AOC developed a resin formulation that incorporates new low-profile additives that reduce moisture by up to 60%. Meanwhile, Red Spot Paint & Varnish developed a liquid spray-on conductive sealer/primer that controls the release of moisture from the SMC into the subsequent powder primer. The sealer/primer (which replaces the older liquid in-mold coating) is applied by Meridian before SMC parts are shipped to the GM facility for powder priming The combination of the new sealer/primer and low-moisture SMC is said to raise the surface quality of powder-primed SMC to acceptable OEM (Original Equipment Manufacturer) The rebranding of equipment and selling it. The term initially referred to the company that made the products (the "original" manufacturer), but eventually became widely used to refer to the organization that buys the products and levels. AOC: (901) 854-2800/PTDirect: 643BB * Red Spot: (800) 457-3544/PTDirect: 911BD * Meridian: (313)336-4182 * www.meridianautosystems.com |
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