OVERVIEW of Chemours® PTFE 7C |
Chemours® PTFE 7C is a white powder with very small particle size. Its most unique feature is the
irregular, fibrous character of the particles. The small particle size of Chemours® PTFE 7C helps
to minimize voids even at relatively low molding pressure. The fibrous particles promote good
capture and uniform distribution of inorganic fillers when they are added to modify the mechanical
properties of moldings. Chemours® PTFE 7C exhibits relatively high mold shrinkage.
Chemours® PTFE 7C is preferred for moldings requiring optimum mechanical and electrical properties.
Its relatively low bulk density limits the size of moldings from a given mold or press opening. It is
often preferred for making filled compounds, especially with metal powders that are difficult to mix
because of density differences.
Properly processed products made from neat Chemours® PTFE 7C 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 7C 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.
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FEATURES AND BENEFITS of Chemours® PTFE 7C |
End products using Chemours® PTFE 7C include skived film and sheet, gaskets,
bridge or pipeline bearing pads, piston rings, and diaphragms.
Properly processed products (sintered at high temperatures common to the industry) made from
Chemours® PTFE 7C resin can qualify for use in contact with food in compliance with FDA Regulation
21 CFR 177.1550.
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![Chemours® Ptfe 7c]( "Chemours® Ptfe 7c")
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