Kaxite Sealing is a China-based PTFE sheet supplier and PTFE sheet manufacturer serving industrial buyers, engineers, distributors, and OEM partners worldwide. Our PTFE sheets, also known as Teflon® sheets or Polytetrafluoroethylene sheets, are high-performance engineering plastics known for exceptional chemical resistance, wide temperature tolerance, low friction, and excellent electrical insulation. We supply virgin PTFE sheets, filled PTFE sheets, skived PTFE sheets, molded PTFE sheets, and expanded PTFE sheets for sealing, lining, insulation, and non-stick applications.
PTFE sheet is used to cut gaskets, fabricate seals, line equipment, and produce wear parts. Selecting the correct grade depends on chemical exposure, operating temperature, pressure, mechanical load, friction, and conductivity requirements. Kaxite Sealing helps procurement teams and engineers choose the right PTFE sheet material, confirm MOQ, review lead time, request a free sample, and move quickly to RFQ and quotation.
Send material grade, thickness, sheet size, quantity, and drawing. Get factory-direct pricing, OEM support, sample availability, and fast quotation.
Send RFQ WhatsApp Download DatasheetWe manufacture and supply a wide range of wholesale PTFE sheets and custom PTFE sheets for industrial sealing, lining, insulation, and wear applications. Material grades can be selected for chemical compatibility, high temperature, low friction, wear resistance, thermal conductivity, and food contact requirements.
| Grade Type | Description | Key Characteristics | Typical Applications |
|---|---|---|---|
| Virgin PTFE | 100% pure, unfilled PTFE. | Highest purity, excellent chemical and electrical properties, lower mechanical strength. | Gaskets for ultra-pure systems, medical components, electrical insulation, labware. |
| Glass Filled PTFE | Reinforced with glass fibers (5%–40%). | Improved compressive strength, reduced creep, better wear resistance. | Bushings, bearings, thrust washers, industrial gaskets under load. |
| Carbon Filled PTFE | Filled with carbon or graphite powder. | Enhanced thermal conductivity, lower friction, superior wear resistance. | Piston rings, compressor rings, dynamic seals in dry or wet environments. |
| Bronze Filled PTFE | Filled with bronze powder. | High load-bearing capacity, excellent thermal conductivity, very low wear. | Heavy-duty bearings, wear plates, backup rings for high-pressure seals. |
| Stainless Steel Filled PTFE | Filled with stainless steel powder. | High stiffness, excellent wear resistance, good thermal conductivity. | Seals for abrasive media, chemical pump components, heavy-duty guides. |
| MoS2 Filled PTFE | Filled with molybdenum disulfide. | Reduced initial friction, improved break-in characteristics. | Seals and bearings for slow, high-load applications. |
| Property | Test Method | Virgin PTFE | 25% Glass Filled | 20% Carbon Filled | 15% Bronze Filled |
|---|---|---|---|---|---|
| Density (g/cm³) | ASTM D792 | 2.15 – 2.20 | 2.20 – 2.30 | 2.10 – 2.20 | 3.00 – 3.10 |
| Tensile Strength (psi) | ASTM D638 | 3,000 – 5,000 | 2,500 – 3,500 | 2,200 – 2,800 | 2,000 – 2,500 |
| Elongation at Break (%) | ASTM D638 | 300 – 500 | 200 – 300 | 150 – 250 | 100 – 200 |
| Compressive Strength (psi) | ASTM D695 | 1,800 | 3,500 | 3,200 | 4,000 |
| Coefficient of Friction (Dynamic) | ASTM D1894 | 0.04 – 0.10 | 0.10 – 0.15 | 0.08 – 0.12 | 0.10 – 0.18 |
| Continuous Service Temp. | — | -200°C to +260°C | -200°C to +260°C | -200°C to +260°C | -200°C to +260°C |
As a custom PTFE sheet manufacturer, Kaxite Sealing supports OEM and ODM projects for distributors, gasket manufacturers, equipment builders, and industrial end users. We can supply standard sheets or fabricate finished parts according to your drawing, sample, or specification.
Our PTFE sheets are used in a wide range of industries where chemical resistance, high temperature, low friction, and electrical insulation are critical. Typical applications include:
Kaxite Sealing focuses on consistent material quality, dimensional stability, and reliable performance. Our virgin PTFE sheets meet FDA regulations for food contact under 21 CFR 177.1550 and are USP Class VI compliant for certain medical applications. If your project requires specific certification documents, material test reports, or compliance statements, please contact our technical sales team before ordering.
To receive an accurate quotation for bulk PTFE sheets or custom PTFE parts, please provide the following information:
MOQ, lead time, sample policy, and bulk discount are confirmed according to material, thickness, size, and order quantity. Send your requirements through the RFQ form or WhatsApp for a fast response.
Not sure which PTFE sheet grade to choose? Send your medium, temperature, pressure, and mechanical load. Our team will recommend a suitable material and help you move from inquiry to quotation.
Contact Us >> Send RFQ >> Download Datasheet >>Virgin PTFE is the pure base polymer, offering the best chemical resistance and electrical properties but is softer and more prone to creep under sustained load. Filled PTFE sheets incorporate materials like glass, carbon, or bronze to enhance specific mechanical properties. Fillers significantly improve wear resistance, reduce creep, increase compressive strength, and can enhance thermal conductivity, making them suitable for demanding mechanical applications like bearings and heavy-duty seals.
The choice depends on your primary performance requirement. For general wear resistance and stiffness, glass-filled is a common choice. For applications requiring low friction and good wear in dry or wet conditions, carbon-filled is excellent. For high-load, high-wear applications where heat dissipation is important, bronze-filled is superior. For highly abrasive media or where galvanic corrosion is a concern with bronze, stainless steel filled is recommended. Our engineers can provide detailed guidance based on your specific operating conditions.
Yes, PTFE is renowned for its excellent machinability. It can be easily cut, skived, drilled, turned, and milled using standard workshop equipment for metals or plastics. Sharp tools and proper fixturing are recommended to avoid deformation, as the material is soft. Kaxite Sealing provides sheets with consistent density and homogeneity, ensuring clean, precise machining results for complex gaskets, seals, or components.
PTFE is virtually inert and is resistant to almost all industrial chemicals, including strong acids, bases, and solvents. The only known chemicals that can affect PTFE at elevated temperatures and pressures are molten alkali metals and certain highly fluorinated compounds. It is this near-universal chemical resistance that makes it the material of choice for gaskets and linings in chemical processing equipment.
Kaxite Sealing PTFE sheets maintain useful mechanical properties across an exceptionally broad range. They can be used continuously from cryogenic temperatures as low as -200°C (-328°F) up to +260°C (+500°F). Short-term excursions up to 300°C (572°F) are possible. Prolonged exposure above 260°C can lead to gradual thermal degradation. It does not melt but begins to decompose at temperatures above 327°C (620°F).
Yes, virgin PTFE is physiologically inert and meets FDA regulations for food contact applications under 21 CFR 177.1550. It is also USP Class VI compliant, making it suitable for many medical and pharmaceutical uses. It is critical to ensure that the specific grade used is certified for such applications. Kaxite Sealing offers high-purity, FDA-compliant virgin PTFE sheets for these sensitive industries.
PTFE outperforms elastomers in extreme chemical and temperature environments where rubbers would fail. It has much lower creep relaxation than traditional soft gaskets, meaning it maintains bolt load better in flanged connections, leading to longer seal life. Compared to CNA, PTFE offers superior chemical resistance, a wider temperature range, and is inherently non-stick. For severe service conditions, PTFE, especially filled grades from Kaxite Sealing, is often the most reliable and cost-effective long-term solution.
Absolutely. While we stock a wide range of standard sheet sizes, thicknesses, and filler grades, Kaxite Sealing specializes in custom solutions. We can manufacture sheets to your exact dimensional requirements. Furthermore, we can develop custom compound formulations with specific filler percentages or blends to meet unique application challenges regarding wear, friction, conductivity, or PV (Pressure-Velocity) limits.
