CMT Materials Inc. claims its new composite foam, called Hytac-B1X, makes better thermoforming plugs than competing materials. The plugs are used to make molds for thermoforming.
The foam is a mix of engineering thermoplastics filled with hollow glass microspheres. It combines low thermal conductivity, low specific heat and coefficient of thermal expansion, high impact resistance and easy machining, the Attleboro, Mass., company said.
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