Imprex Inc. has been in the casting impregnation business since 1958. Based in Milwaukee, Wis., the company specializes in providing solutions for electronic component sealing, metal impregnation and vacuum pressure impregnation systems. In addition, it customizes metal casting and powdered metal impregnation systems. With its Imprex-e process, Imprex Inc. also seals leak paths within electronic components from the inside out. The company also assembles and tests all systems it builds and then disassembles them into largest parts for shipment in order to expedite reassembly.