Show new plastics get more remarkable all the time while plastic cars and plastic houses are certainly not for the immediate future dr J J pyle director of general electrics plastics laboratory declares you may rest assured that in the next 10 years plastic products will find their way into your everyday life in ever everin in creasing numbers dr pyle mentioned a list of properties available in plastic materials which runs the gamut materials so tough that they can not be broken with a hammer to others as brittle as sandstone plastics tic with greater transparency than glass to others that even X rays have difficulty going through materials that are as soft as putty or rubber to others almost as hard as glass certain plastics flow and distort at temperatures considerably less than boiling water degrees F whereas others will withstand temperatures as high as the melting point of aluminum alloys 1300 1400 degrees F certain compositions are among the best electrical insulators and others are semiconductors some plastics can be exposed to sunlight forever with no color change and others only for matters of minutes or hours |