On 1/8/2006 at 2:20 PM C Fernandez wrote: >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. Well, I don't have a PS/2 model 80, but various materials can be added as filler to most plastics to improve strength. Cheers, Chuck