A. B. Boyd Company puts a little zip in rubber manufacturing. Initially a zipper distributor, the company has evolved to operate as Boyd Corporation and manufacture rubber, plastic, and fiber products that offer environmental sealing and energy-efficient solutions. The custom-designed and manufactured products meet requirements for acoustic, thermal, shock, and shielding systems, among others. Boyd uses a range of specialized materials from silicone to Mylar, polypropylene, copper and aluminum foils, and coated fabrics to deliver a low-cost, engineered lineup. It caters to OEMs in aerospace, electronics, medical equipment, telecommunications, and transportation. Boyd is held by Stonebridge Partners Management.