E&T Fasteners offers a wide variety of specialty fasteners produced in PTFE, or polytetrafluoroethylene, including but not limited to, screws, bolts, hex nuts, washers, spacers, shoulder washers, bushings, and screw insulators. Please call on us if you require prototype or production quantities of PTFE parts that you want an experienced PTFE parts manufacturer to produce. We excel in the production of PTFE specialty fasteners that have temperature stability. Our facilities and the outstanding craftsmen, who work with us, are at your disposal.
PTFE is the name trademarked by Dupont for polytetrafluoroethylene, or PTFE. PTFE is a synthetic fluoropolymer that finds numerous consumer and industry applications.
PTFE PTFE fluoropolymer resin was first discovered in 1938 by DuPont chemist Roy Plunkett.
PTFE (PTFE) is a fluorocarbon solid, as it is a high-molecular-weight compound consisting wholly of carbon and fluorine.
Due to Teflon’s extremely low coefficient of friction, it is an excellent material choice for avoiding surface wear. PTFE has no-stick characteristics. Teflon’s static and dynamic coefficients are equal. Nothing sticks with any strength to an unheated PTFE surface. Both virgin and mechanical grades are UV stabilized. Virgin material meets FDA standards and is USDA-approved.
PTFE has many popular industry applications. PTFE is easily machined using mechanical, stamping and tooling equipment. E&T Fasteners can also produce parts in glass-filled PTFE. Some of the shapes we have machined are PTFE discs, nozzles, vent plugs, pipe plugs, and dowels. We also produce specialty fasteners that are custom sizes of standard fasteners.
Industry applications for PTFE heat resistance include semiconductor manufacturing, automotive, water purification, defense, communications, aerospace, computing, pharmaceutical research, biotech, chemical handling, valves and pumps, food processing equipment and much more.
For petrochemical and chemical processing, PTFE is the material choice for gaskets, washers, rings, seals, spacers, and well drilling components because it is corrosion resistant and chemically inert.
As an electrical insulating material, PTFE is one of the best known. PTFE is frequently used to separate conductive surfaces in capacitors. PTFE can be machined into standoff insulators, and many types of high-voltage electrical insulating material devices for electrical components.
PTFE wire has been used in downhole logging tools almost exclusively since the 1960s because of its excellent high temperature performance. Some manufacturers have also used PTFE wire in logging surface electronics to avoid insulation melt-back.
For the semi-conductor industry, PTFE is inert, and its operating temperature makes it especially suitable for various items used in chip manufacturing, including encapsulation devices for quartz heaters.
Virgin PTFE is approved by the FDA for use in the food, beverage, cosmetics and pharmaceutical industries. E&T PTFE specialty fasteners can withstand high temperatures inside baking and drying ovens and other heated industry applications.
Chemical resistance is outstanding with only molten alkali metals and certain halogens, under special conditions, attacking the material. There are no known solvents for PTFE. Electrical insulation and loss properties are remarkable as no other solid material maintains its dielectric constant over such a wide range of temperature and frequency. Parts made of PTFE are virtually unaffected by weather, i.e. extremes of heat and cold and ultra-violet light; moisture absorption is zero. PTFE will not burn under any conditions.
PTFE is compatible with many chemicals such as Nitric Acid Aq. 10%, Perchloric Acid Aq., Phenol Aq., Phosphoric Acid Aq. 3%, Acetic Acid, Acetone, Aluminum Chloride, Aluminum Sulfate, Ammonium Carbonate, Barium Chloride, Benzene, Boric Acid, Butanol, Butyric Acid, Carbon Tetrachloride, Chloral Hydrate, Chloroform, Chloralsulphonic Acid, Chromic Acid, Citic Acid Aq., Cresylic Acid, Cyclohexanol, Cyclohexanone, Diesel Oil, Dioxan, Ether,Diethyl, Ethyl Acetate, Ethylene Dichloride, Ethylene Glycol Aq., Ferrous Chloride Aq, Fluosolic Acid, Formaldehyde Aq., Formic Acid, Glycerin, Heptane, Hydrobromic Acid, Hydrochloric Acid Aq., Hydrofluoric Acid Aq., Hydrogen Sulphide Aq., Hydroquinone, Lactic Acid Aq. 10%, Lead AcetateAq., Magnesium Chloride Aq., Malcics Acid, Maonie Acid Aq., Methyl Acetate, Methyl Ethyl Ketone, Methyl Chloride, Nickel Sulphate Aq., Phosphoric Acid Aq. 10%, Phthalic Acid Aq., Potassium Chloride Aq., Propane Gas, Salicylic Acid, Silver Nitrate, Sodium Acetate Aq., Sodium Bicarbonate Aq., Sodium Hypochlorite 15%Cl, Sodium Nitrate Aq., Stannic Chloride Aq., Stearic Acid, Sulphuric Acid 2%, Sulfurous Acid Aq., Turpentine, Vegetable Oils, Water, Xylene, Xylenol, Zinc Chloride Aq. These chemicals have an A rating regarding Chemical Resistance which translates as “no attack, possible slight absorption, negligible effect on mechanical properties. PTFE is unaffected by large doses of radiation.
PTFE is a white solid at room temperature, with a density of about 2.2 g/cm3. According to DuPont, its melting point is 327 °C (621 °F), but its mechanical properties degrade above 500 °F (260 °C). PTFE gains its properties from the aggregate effect of carbon-fluorine bonds, as do all fluorocarbons. PTFE has excellent flame resistance, and it meets the UL 94 V-0 standard.
As a producer of specialty fasteners, E&T Fasteners is ready to work with you to meet your needs for PTFE hardware.