Quality You Can Count On... Integral to our Rapid Response program is an extremely competitive pricing structure designed to save you money. We offer flexible order quantities and stocking programs to help integrate our closures into your production schedule. In addition, our products are manufactured within the highest quality standards. Our GMP facility is temperature controlled and has earned an ISO 9001:2008 certification. EMP Closures is the proprietary stock cap and closure business for Erie Molded Plastics. For more than 35 years, Erie Molded Plastics has been providing OEM and distribution customers custom injection molded parts and integrated packaging solutions. All of our custom and stock products are manufactured in our state-of-the-art molding facility conveniently located in Erie, PA. This temperature and humidity controlled plant features more than 20 molding presses, ranging from 85 to 725 tons.