TCI Powder Coatings, a subsidiary of RPM International Inc., hired Dale Blackwell as director of manufacturing, effective May 1, 2017. " /> TCI Powder Coatings, a subsidiary of RPM International Inc., hired Dale Blackwell as director of manufacturing, effective May 1, 2017. " /> TCI Powder Coatings, a subsidiary of RPM International Inc., hired Dale Blackwell as director of manufacturing, effective May 1, 2017. " />