Skived PTFE Teflon Sheet
Precision-peeled virgin PTFE with tighter thickness tolerance and a smoother surface. 0.5–10 mm, sheet or roll form, available sodium-etched for adhesive bonding.
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Kaxite Sealing is a custom PTFE sheet manufacturer and supplier based in Ningbo, China. We produce molded, skived and expanded polytetrafluoroethylene sheets in virgin and filled grades, supply them cut to size, and machine them into finished gaskets, liners, wear pads and electrical insulation components. Engineers and procurement teams source from us for three practical reasons: controllable factory pricing, documented material traceability, and short production lead times.
Resin sourcing, compression molding, sintering and skiving all happen inside our Ningbo plant. No trading layer means a more stable PTFE sheet price and consistent batch-to-batch quality for bulk orders.
Every shipment can be supplied with resin lot records, density and tensile test reports, plus FDA 21 CFR 177.1550, USP Class VI, RoHS and REACH declarations for regulated industries.
Die cutting, waterjet cutting, CNC machining, skiving and sodium-etching or plasma treatment for bonding. Send a drawing and we return finished custom PTFE sheet parts, not just raw sheets.
Not sure whether virgin, glass-filled or bronze-filled sheet suits your media, load and temperature? Our technical team reviews your operating conditions before quoting.
Precision-peeled virgin PTFE with tighter thickness tolerance and a smoother surface. 0.5–10 mm, sheet or roll form, available sodium-etched for adhesive bonding.
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Continuous-peeled sheet in 53-G virgin, GF, C and B grades. 0.5–8 mm thick, 1000/1200/1500 mm widths, with one-side or two-side etched options.
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Compression-molded and sintered to full density for high tensile strength and stress relief. 1.5–50 mm thick, virgin and filled grades.
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Molded, skived or expanded formats from 0.5–50 mm, inert across pH 0–14. Virgin for chemical, food and pharma service; filled grades for mechanical duty.
View specifications| Property | Standard Value | Test Method | Remarks |
|---|---|---|---|
| Specific Gravity | 2.15 – 2.20 g/cm³ | ASTM D792 | Indicates material density |
| Tensile Strength | 25 – 35 MPa (3600 – 5000 psi) | ASTM D638 | Resistance to breaking under tension |
| Elongation at Break | 300 – 500 % | ASTM D638 | High flexibility and ductility |
| Coefficient of Friction | 0.05 – 0.08 (dynamic) | ASTM D1894 | Extremely low, self-lubricating |
| Continuous Service Temp. | -200 °C to +260 °C (-328 °F to +500 °F) | — | No melting point; degrades above 260 °C |
| Dielectric Strength | 40 – 60 kV/mm | ASTM D149 | Excellent electrical insulation |
| Water Absorption | < 0.01 % | ASTM D570 | Virtually non-absorbent |
| Available Thickness | 0.5 – 50 mm (0.02" – 2.0") | — | Custom thickness on request |
| Standard Sheet Sizes | 1000×1000 mm, 1200×1200 mm, 48"×48", 60"×60" | — | Other sizes cut to order |
| Property | 15% Glass Filled | 25% Glass Filled | Test Method |
|---|---|---|---|
| Specific Gravity | 2.20 – 2.25 g/cm³ | 2.25 – 2.30 g/cm³ | ASTM D792 |
| Tensile Strength | 18 – 25 MPa | 15 – 20 MPa | ASTM D638 |
| Compressive Strength | Significantly improved | Excellent | ASTM D695 |
| Creep Resistance | Good | Very good | — |
| Wear Rate | Reduced | Further reduced | ASTM D3702 |
| Coefficient of Friction | Slightly higher than virgin | Slightly higher than virgin | ASTM D1894 |
| Machinability | Good | Good, more abrasive on tooling | — |
Virgin PTFE sheet — maximum chemical purity and dielectric strength. Specify for chemical containment, food contact and pharmaceutical processing where FDA 21 CFR 177.1550 or USP Class VI certification is required.
Glass filled PTFE sheet — improved creep resistance and dimensional stability under load. Specify for mechanical seals, thrust washers and general load-bearing components.
Bronze filled PTFE sheet — higher thermal conductivity and wear resistance. Specify for high-load bearing pads and bushings.
Carbon filled PTFE sheet — improved wear and deformation resistance plus electrical conductivity. Specify for wear strips, slides and static-dissipative parts.
MoS₂ filled PTFE sheet — enhanced self-lubrication and lower friction. Specify for dry-running and low-speed sliding applications.
PTFE sheet is specified across chemical processing, oil and gas, food and beverage, pharmaceutical, semiconductor, electrical and general engineering sectors. Common finished parts include PTFE gaskets, flange insulation kits, vessel and pipe liners, wear pads, slide bearings, dielectric barriers and expanded PTFE sheet for low-bolt-load sealing. You can review the full breakdown on our applications page, or explore complementary formats such as PTFE rods and PTFE tubes.
There is no functional difference. Teflon® is a registered trademark of Chemours for its brand of PTFE; PTFE (polytetrafluoroethylene) is the generic material name. Kaxite Sealing PTFE sheets are manufactured to the same high-performance standards as branded material.
Yes, with care. Virgin PTFE creeps under sustained pressure, so high-pressure static seals should use filled grades such as glass or carbon filled sheet, which offer significantly better creep resistance, together with flange designs that confine the gasket and prevent extrusion.
Thickness follows function. Static seals: 0.5–3 mm conforms better to rough flange surfaces. Bearing and wear pads: thickness is driven by expected wear life and load. Chemical linings: thickness is set by corrosion allowance and mechanical abuse. Our technical team can recommend a value once you share the operating conditions.
Pure PTFE is difficult to bond because of its non-stick surface. A reliable joint requires sodium etching or plasma treatment first, after which standard epoxy or acrylic adhesives perform well. Kaxite Sealing can supply pre-treated sheet or components ready for bonding.
Wear life is governed by the PV value (pressure × velocity), counterface material and finish, operating temperature, lubrication and the specific PTFE compound. A smooth, hard counterface such as polished stainless steel paired with a bronze or carbon filled grade delivers the longest service life. Exceeding the material's maximum PV limit causes rapid failure.
Standard PTFE has limited resistance to prolonged UV exposure, which can cause gradual surface embrittlement. For critical outdoor installations, specify a UV-stabilised grade or shield the material from direct sunlight. We can advise on grade selection for outdoor service.
Yes. Precision fabrication is a core service. We die-cut, waterjet cut, CNC machine, skive and mold PTFE sheet into finished gaskets, seals, bushings, thrust washers and complex liners to your drawings, reducing both your lead time and material waste.
Store flat or properly supported in a cool, dry place away from direct sunlight and heat sources. Handle with clean gloves to avoid contaminating the surface, particularly for high-purity and electrical insulation applications.
Send us your thickness, sheet size, grade, annual volume or finished-part drawing. Our export team replies to every enquiry within 24 hours and will confirm lead time, packaging and documentation before you place a bulk order.
