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Visit Zeus Inc. for Fluoropolymer Tubing
DuPont™ Teflon® PFA Grade 345 Extrusion and Molding Resin
Categories: Polymer; Thermoplastic; Fluoropolymer; PFA

Material Notes: Teflon® PFA 345 is a medium-flow-rate resin available in clear 2.5-mm (0.1-in.) pellets. Compared with Teflon® PFA 340, it offers increased flex life and greater resistance to environmental stress cracking.

All grades of Teflon® PFA combine the processing ease of conventional thermoplastics with properties similar to those of Teflon® PTFE fluorocarbon resin. They have high melt strength, stability at high processing temperatures, and resistance to creep at high service temperatures.

Teflon® PFA retains its properties after service at 260°C (500°F) and has useful properties at temperatures as low as –196°C (–320°F). It is inert to nearly all industrial chemicals and solvents, and its dielectric properties are excellent. Products madewith Teflon® PFA have moderate stiffness and high elongation.

In a flame situation, products of Teflon® PFA resist ignition and do not themselves 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.

Applications

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

Key Words: DuPont Fluoroproducts; DuPont PFA
Vendors:
Available Properties
  • Specific Gravity, ASTM D792
  • Water Absorption, ASTM D570, 24 hours
  • Melt Flow, ASTM D3307
  • Hardness, Shore D, ASTM D2240
  • Tensile Strength, Ultimate, ASTM D638
  • Elongation at Break, ASTM D638
  • Flexural Modulus, ASTM D790
  • Izod Impact, Notched, ASTM D256
  • Volume Resistivity, ASTM D257
  • Surface Resistivity per Square, ASTM D257
  • Dielectric Constant, ASTM D150
  • Dielectric Strength, ASTM D149, film
  • Dissipation Factor, ASTM D150
  • Arc Resistance, ASTM D495
  • CTE, linear, ASTM D696
  • Melting Point, ASTM D3418
  • Maximum Service Temperature, Air
  • Flammability, UL94
  • Oxygen Index, ASTM D2863
  • Processing Temperature, Cure Temperature
  
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Category Notes
Plastic

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Visit Zeus Inc. for Fluoropolymer Tubing
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