NEW POLYMERS FOR COLD EXTRUSION Available to Purchase

TEFLON fluorocarbon resin has been used for many years as a low friction material (its anti‐stick properties for foods in pots and pans are well known), but these properties have not been available to the metal extrusion industry because of application and adhesion problems. ‘Teflon’ is basically a long chain of tetrafluoroethylene groups —about 10 to 30 thousand. This polymeric chain melts at 621°F and has a very high melt viscosity which allows negligible flow at this temperature. It is essentially insoluble in all common solvents.