A new epoxy plug-assist material reportedly provides improved surface finish for forming clear PP cups. CupForm from CMT Materials Inc., Attleboro, Mass., is said to be smoother than syntactic foam and has heat insulating properties similar to high-performance thermoplastics like polysulfone and polyetherimide. CupForm has a surface roughness of 3 to 4 RMS vs. 8 to 10 for syntactic foam. It is easy to machine and less abrasive to cutting tools, and it resists the microcracking associated with engineering thermoplastics, says CMT. CupForm also costs less than the thermoplastics and about the same as syntactic foam at 70¢/cu in. Tel: (508) 226-3901 . www.cmtmaterials.com
CMT Materials Inc
50 Eddy St Unit 18 Attleboro, MA 02703
Phone (508) 226-3901 Fax (508) 226-3902
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