For inventory control purposes, product name may be followed  by an X. Products labeled PFA 345 and PFA 345 X are equivalent, and all  information in this document is applicable to both. 

Typical Applications  

Applications for Teflon™  PFA 345 include extruded tubing, wire  and cable insulation, injection molded parts, and chemically  resistant linings for bellows, valves, fittings, pipes, pumps, and  other fluid-handling components. 

Description  

Teflon™  PFA 345 is a medium melt flow rate fluoropolymer resin  available in pellet form. Compared with Teflon™  PFA 340, it offers  increased flex life and greater resistance to environmental  stress-cracking (Teflon™  PFA 345 offers a typical MIT folding  endurance of 50,000* compared to 15,000 in Teflon™  PFA 340).  Table 1 shows the typical property data for Teflon™  PFA 345.  

Teflon™  PFA 345 is used when traditional extrusion and molding  processes are required for producing products with the  superior properties of a fluoropolymer resin. Compared to other  thermoplastics, the high melt strength and thermal stability  of Teflon™  PFA 345 can be used to improve processing rates.  Compared with other fluoropolymers, creep resistance at high  service temperatures provides a superior balance and level of  end-use properties. Teflon™  PFA 345 combines the processing  ease of conventional thermoplastics with many properties similar  to those of polytetrafluoroethylene.  

Properly processed products made from neat Teflon™  PFA  345 resin provide the superior properties characteristic of  fluoropolymer resins: chemical inertness, exceptional dielectric  properties, heat resistance, toughness and flexibility, low  coefficient of friction, non-stick characteristics, negligible  moisture absorption, low flammability, performance at  temperature extremes, and excellent weather resistance. 

In a flame situation, products of Teflon™  PFA 345 resist ignition  and do not promote flame spread. When ignited by flame from  other sources, their contribution of heat is very small and added  at a slow rate with very little smoke.