WM Plastics operates from 70,000 square feet of dedicated manufacturing space housed in a cast concrete structure with 18-foot clear ceilings. The company s services include engineering, part design, material selection, prototyping, custom decorating, machining and assembly. The company also offers engineering support. Its material competencies consist of engineering grade resins, such as acetate, nylon and polyester; liquid crystal polymers, which require higher temperatures for tool building; electrostatic discharge materials, including thermoplastic elastomer materials that process like thermoplastics but have the characteristics of rubber; and elastomer overmolding. WM Plastics is located in McHenry, Ill. Bill Metz, a tool and die maker, established WM Plastics in 1967.