Warren, Mich.-based toolmaker Proper Group International Inc. has completed training for the initial class of MuCell-certified tooling engineers and designers.
Trexel of Woburn, Mass., and Proper Group announced their partnership to train MuCell-certified mold makers last fall.
Proper Group toolmakers now can design molds for the MuCell process, which adds microscopic bubbles to plastic melt using nitrogen or carbon dioxide gas.
Contact Trexel at tel. 781-932-0202, fax 781-932-3324.