Gaskets & Seals
PTFE sheet is widely used to fabricate gaskets and seals for chemical, pharmaceutical and food processing equipment.
PTFE (polytetrafluoroethylene) sheet for industrial gaskets, seals, linings and insulation. Manufactured from virgin or filled PTFE with outstanding chemical resistance, wide temperature range, low friction and excellent dielectric properties for demanding industrial applications.
Explore PTFE sheet in virgin and filled grades for industrial gaskets, seals, linings, bearings and electrical insulation. Available in a wide range of thicknesses, sheet sizes and custom cut dimensions.
PTFE sheet is a solid sheet material manufactured from polytetrafluoroethylene resin. It is selected for applications requiring outstanding chemical resistance, wide temperature range, low friction coefficient, non-stick surface and excellent electrical insulation properties.
PTFE sheet is available in virgin (unfilled) and filled grades. Filled grades incorporate additives such as glass fiber, carbon, graphite, bronze or molybdenum disulfide to improve specific properties including wear resistance, compressive strength, thermal conductivity and dimensional stability.
We supply PTFE sheet for overseas distributors, industrial buyers, gasket manufacturers, maintenance companies and OEM customers, with different grades, thicknesses, sheet sizes and custom cutting available according to specification.
PTFE sheet combines outstanding chemical resistance, wide temperature capability, low friction and excellent dielectric properties for demanding industrial applications.
PTFE is resistant to virtually all industrial chemicals, including strong acids, bases, solvents and oxidizing agents, making it suitable for aggressive media.
PTFE maintains its properties over a temperature range from approximately -180°C to +260°C, suitable for both cryogenic and high-temperature service.
PTFE has one of the lowest coefficients of friction of any solid material, typically between 0.05 and 0.10, reducing wear and energy loss.
The non-stick properties of PTFE prevent adhesion of most substances, making it easy to clean and ideal for anti-stick applications.
PTFE exhibits high dielectric strength, low dielectric constant and low dissipation factor, making it ideal for high-frequency and high-voltage insulation.
Glass, carbon, graphite, bronze and other fillers can be added to PTFE to improve wear resistance, compressive strength, thermal conductivity and dimensional stability.
Technical properties depend on the PTFE grade (virgin or filled), manufacturing method and sheet thickness. The values below are typical for standard virgin PTFE sheet and should be confirmed for the selected grade before ordering.
| Product | PTFE Sheet (Virgin / Filled) |
|---|---|
| Material | Virgin PTFE or filled PTFE (glass fiber, carbon, graphite, bronze, MoS₂ etc. depending on grade) |
| Color | White / Natural for virgin PTFE; filled grades may be gray, black, brown or other colors |
| Density | Approximately 2.1–2.3 g/cm³ for virgin PTFE; filled grades may vary depending on filler type and content |
| Temperature Range | Continuous service: -180°C to +260°C; short-term tolerance up to +300°C depending on application and load |
| Tensile Strength | ≥ 15 MPa for virgin PTFE sheet (typical 25–35 MPa); filled grades may vary |
| Elongation at Break | ≥ 150% for virgin PTFE (typical 200–400%); filled grades typically lower |
| Hardness | Shore D 50–65 for virgin PTFE; filled grades may be higher |
| Coefficient of Friction | 0.05–0.10 (dynamic) for virgin PTFE against steel |
| Dielectric Strength | 18–60 kV/mm depending on thickness and test conditions |
| Chemical Resistance | Virtually inert to all chemicals except molten alkali metals, elemental fluorine and some fluorine compounds at elevated temperatures |
| Water Absorption | < 0.01% (virtually zero) |
| Sheet Thickness | 0.25 mm to 100 mm; custom thicknesses available subject to specification |
| Sheet Size | Standard sizes: 1000×1000 mm, 1000×2000 mm, 1220×1220 mm, 1220×2440 mm, 1500×1500 mm, 1500×3000 mm; custom sizes and cut pieces available |
| Supply Form | Sheet, cut-to-size pieces, roll (skived film), or customized dimensions subject to specification |
| Compliance | ISO 9001 quality management and RoHS compliance documentation available where applicable; FDA compliant grades available for food contact applications |
PTFE sheet is available in standard sheet sizes and a wide range of thicknesses. The following table lists commonly stocked dimensions. Custom sizes, thicknesses and cut pieces can be produced according to customer requirements.
| Thickness | Standard Sheet Size | Typical Application | Grade |
|---|---|---|---|
| 0.25 mm | 1000×1000 mm / 1000×2000 mm | Dielectric film, gasket, anti-stick liner | Virgin PTFE |
| 0.5 mm | 1000×1000 mm / 1000×2000 mm | Gasket, diaphragm, electrical insulation | Virgin PTFE |
| 1.0 mm | 1000×1000 mm / 1220×1220 mm | Gasket, seal, lining, insulation | Virgin / Filled PTFE |
| 1.5 mm | 1000×1000 mm / 1220×1220 mm | Gasket, seal, bearing pad | Virgin / Filled PTFE |
| 2.0 mm | 1000×1000 mm / 1220×1220 mm | Gasket, chemical lining, slide plate | Virgin / Filled PTFE |
| 3.0 mm | 1000×1000 mm / 1220×1220 mm | Gasket, seal, bearing, insulator | Virgin / Filled PTFE |
| 5.0 mm | 1000×1000 mm / 1220×1220 mm | Chemical lining, bearing pad, seal | Virgin / Filled PTFE |
| 10 mm | 1000×1000 mm / 1220×1220 mm | Machined components, heavy-duty seal | Virgin / Filled PTFE |
| 20 mm | 1000×1000 mm / 1220×1220 mm | Thick gasket, machined block, insulator | Virgin / Filled PTFE |
| 50 mm | 500×500 mm / 1000×1000 mm | Machined component, heavy-duty insulation | Virgin / Filled PTFE |
* Reference standard sheet sizes and thicknesses are shown for procurement guidance. Available sizes depend on the selected PTFE grade and manufacturing method. Custom thicknesses from 0.25 mm to 100 mm and custom sheet dimensions are available subject to specification.
PTFE sheet is used across a wide range of industries where chemical resistance, temperature stability, low friction and electrical insulation are required.
PTFE sheet is widely used to fabricate gaskets and seals for chemical, pharmaceutical and food processing equipment.
Linings, diaphragms and components for aggressive chemical environments requiring outstanding resistance.
High-frequency and high-voltage insulation components, connector insulators and cable spacers.
Low-friction slide plates, bearing pads and wear strips for machinery and structural applications.
FDA-compliant PTFE sheet for gaskets, seals and contact surfaces in food and pharmaceutical processing.
Stock material for CNC machining of custom parts, bushings, spacers and precision components.
The correct PTFE sheet grade and dimensions should be selected based on chemical exposure, temperature, mechanical load, electrical requirements and machining needs.
Choose virgin PTFE for broadest chemical resistance and electrical properties. Choose filled PTFE for improved wear resistance, compressive strength and dimensional stability.
Specify the required sheet thickness, width and length. Standard sizes are listed, and custom dimensions can be produced or cut to size.
Chemical exposure, temperature range, mechanical load, friction and wear conditions determine the appropriate grade and thickness.
Specify if FDA compliance, RoHS documentation, or other material certifications are required for your application.
Consistent material composition, density, surface finish and dimensional accuracy are important for reliable PTFE sheet performance.
Virgin PTFE resin or filled compounds are selected according to the required grade and performance specifications.
PTFE sheet is produced by compression molding and sintering, or skiving from molded billets for thin gauges and film.
Finished sheet is checked for thickness tolerance, density, tensile strength, surface quality and other specified properties.
Sheet can be supplied in standard sizes, cut to custom dimensions, or machined into components with protective packaging for export.
We focus on supplying industrial fluoropolymer materials to overseas distributors, equipment manufacturers, maintenance companies and industrial buyers.
The more technical information you provide, the more accurately we can recommend the appropriate PTFE sheet grade and prepare a quotation.
You can also send a drawing, required specifications or application details after our sales team contacts you.
Tell us your grade, thickness, sheet size, operating conditions and compliance requirements. Our team will review your requirements and provide a suitable product recommendation and quotation.
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