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MODERN PLASTICS AUGUST 1958 Does it pay to automate the thermosets? page 85 How to thermoform polyethylene sheet tl page 113 : Plastics' stake in footwear page 90 ,ndiana SOURRE D COMPRNY ,, rarUi uil <?- penerai-purpose phcruAio <ont- pound for molding electrical parte like these. Clockwise from upper left: lug base for circuit breaker, plug fuse bast, pole barrier, bus and neutral support. Square D Company needed a pheno lic that could be molded on auto matic presses to produce electrical parts of many different sizes, shapes, And uses. Their specifications also required good dimensional stability, rigidity, high heat resistance, low water absorption, outstanding elec trical properties. Square D chose G-E12929 because it fits all of these requirements-and has good moldability as well. G-E12929 is easy to set up on any compression or plunger molding equipment. Cure cycle is short. The compound can tolerate a wide tem perature range during molding. It is not critical with respect to other molding variables. One flow covers manydifferentparts, including those with thick and thin sections. High barriers All out well. Here is another example of the extra values molders realize from phentilics -- lowest in price of ther mosetting materials, highest in per formance where the specifications call for exceptional heat resistance, dimensional stability and rigidity. For more complete information about G-E 12929 and other G-E com pounds, write General Electric Com pany, Chemical Materials Dept., Section MP 78, Pittsfield, Mass. ^heno/fes-fitst of/Ae modern p/asA'es.. .-firstt'h va/i/& GENERAL ELECTRIC