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HomeChemours® PTFE 7A

Chemours® PTFE 7A

Chemours® PTFE 7A Sheets, Rods and Tubes are made from a white powder with very small particle size. Its most unique feature is high bulk density. The small particle size of Chemours® PTFE 7A helps to minimize voids even at relatively low molding pressure. High bulk density increases the size of moldings possible from a given mold or press opening.

Chemours® PTFE 7A is preferred for large moldings, such as billets, requiring optimum mechanical and electrical properties. It is also used in a mixture with fillers when they are added to modify the mechanical properties of moldings.

Properly processed products made from neat Chemours® PTFE 7A provide the superior properties typical of the fluoropolymer resins: retention of properties after service at 260°C (500°F), useful properties at –240°C (–400°F), chemical inertness to nearly all industrial chemicals and solvents, and low friction and antistick surfaces. Dielectric properties are outstanding and stable with frequency and temperature. Molded products have moderate stiffness and high ultimate elongation.

In a flame situation, products of Chemours® PTFE 7A resist ignition and do not themselves promote flame spread. When ignited by flame from other sources, their contribution of heat is small and with very little smoke.

Chemours® PTFE 7A
Typical End Products- Many end products are fabricated from moldings of Chemours® PTFE 7A, including skived film and sheet, gaskets, packings, mechanical seals, bridge or pipeline bearing pads, shaft bearings, electrical insulators, piston rings, expansion bellows, diaphragms, and chemical linings. The use of fillers provides a wide choice of modified mechanical properties.

FDA Compliance - Properly processed products (sintered at high temperatures common to the industry) made from Chemours® PTFE 7A resin can qualify for use in contact with food in compliance with FDA Regulation 21 CFR 177.1550.
   (TEFLON 7A PTFE) Chemours® PTFE 7A

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