Any idea what IBM used in the IBM PS/2 Model 80, and
many of the older
RS/6000's? It's some kind of plastic, but not ABS. It's quite fibrous
looking on the inside. It seems to be very strong.
My guess is epoxy resin, based on talking with a (fairly highly
educated) plastics recycler. It appeared that this type material
does not melt as easily as what we call regular plastic.
John A.