Construction of the original building began in February 1955 after the company was founded and with more community leaders coming on board for support. In 1958 Kleen-Pak merged with the Pyroil Company of La Crosse, Wisconsin. In 1956 Pyroil had purchased Champion Laboratories of Meriden, Connecticut, a filter assembly operation. Champion moved to West Salem and merged with Kleen-Pak. The merged companies continue to prosper. In 1966 an Albion plant was constructed and new buildings and additions have been made since.