Teflon® 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 Teflon® 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.
Teflon® 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 Teflon® 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 Teflon® 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
NOTE: Due to Current Supply Conditions, Extended Lead-Time May Apply (4-5 Weeks Estimated Delivery) - Contact Sales Dept for Exact Details
FEATURES AND BENEFITS
Teflon® PTFE 7A Typical End Products- Many end products are fabricated from moldings of Teflon® 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 Teflon® PTFE 7A resin can qualify for use in contact with food in compliance with FDA Regulation
21 CFR 177.1550.
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