Virgin PTFE Sheet
- Suitable for high-temperature applications such as food processing in non-stick cookware
- Low coefficient of friction, making them perfect for bearings
- Poor electrical conductors hence, perfect as insulators
- Excellent chemical resistance, thus they are used in pharmaceutical industries or processing plants
- Virgin PTFE temperature is between -200oC and +260oC making it perfect for both high heat and very low-temperature environments. A reason you will find virgin PTFE gaskets in many applications.
- Excellent chemical resistance hence can withstand both corrosive and aggressive substances
- Thermal conductivity is 5.1 x 10-4 cal / cm s °C, hence it has low thermal conductivity
- Excellent resistance to corrosion
- Superior stress cracking resistance properties
Professional Virgin PTFE Sheet Supplier in China
A virgin PTFE sheet is made from 100% pure Polytetrafluoroethylene resin. These sheets do not have any recycled PTFE materials.
At times, you can also refer to it as a natural-grade PTFE sheet.
Normally, these sheets have superior mechanical and physical properties. They are not like the mechanical PTFE sheets which have a percentage of reprocessed material.
In terms of the price of virgin grade PTFE vs PTFE (reprocessed), the latter is economical. Additionally, comparing mechanical PTFE and virgin material, it has the whitest color.
Virgin PTFE Safety
Currently, there are serious complaints that have been recorded about the safety of virgin PTFE. PTFE has been approved by FDA for being safe. One reason, it plays an important role in the manufacturing of cookware.
Furthermore, it is vastly used in the medical industry. This is because the material is inert and biocompatible.
You can access the FDA PTFE safety information. However, if you live in California, read this: PTFE Guidelines.
Shelf-life of Virgin PTFE
Have you heard of materials that last “forever”? Virgin grade PTFE sheet is one such material. Currently, the shelf life of this PTFE material is “unlimited”. As long as you store the material properly, it will remain in good condition forever.
Virgin PTFE Material Properties
- Suitable for high-temperature applications such as food processing in non-stick cookware
- Low coefficient of friction, making them perfect for bearings
- Poor electrical conductors hence, perfect as insulators
- Excellent chemical resistance, thus they are used in pharmaceutical industries or processing plants
- Virgin PTFE temperature is between -200oC and +260oC making it perfect for both high heat and very low-temperature environments. A reason you will find virgin PTFE gaskets in many applications.
- Excellent chemical resistance hence can withstand both corrosive and aggressive substances
- Thermal conductivity is 5.1 x 10-4 cal / cm s °C, hence it has low thermal conductivity
- Excellent resistance to corrosion
- Superior stress cracking resistance properties
Cost of Natural Grade PTFE Sheet
The prices vary broadly depending on the information on the virgin PTFE date sheet. These may include dimensions or other custom specifications.
Take a look at the virgin PTFE data sheet below:
Key Features of Virgin PTFE
Coefficient of friction (COF) as low as 0.04, featuring a smooth surface with self-lubricating properties that eliminate the need for external lubricants.
Demonstrates favorable compressive and creep resistance at ambient temperatures, though may soften under elevated temperatures, suitable for low-stress applications.
Exhibits corrosion resistance capable of withstanding aggressive agents and the majority of chemical media (pH 0-14).
Operational range spans from -200°C to +260°C for sustained service, with short-term exposure tolerance up to 300°C.
Applications of Virgin PTFE Sheet
Extensive application areas
– Industry : chemical, electronics, food processing, medical, aerospace and so on.
– Examples : chemical seals, semiconductor manufacturing fixtures, non-stick pan coatings, heart valve materials.
More details about the Virgin PTFE Sheet
- Technical Specifications of PTFE Sheet Variants
- Specialized Applications
- Material Selection Guideline
| Product Category | Key Applications | Material Standards |
| Standard PTFE Sheet | • Chemical processing equipment linings<br>• High-voltage insulation components | ASTM D3295 Commercial Grade<br>UL 94V-0 Flame Rated |
| Reinforced Wear-Resistant PTFE | • Bearing pads with 15% glass fiber filler (ASTM D7193)<br>• Linear guide wear strips | ISO 13000-2 Tribology Grade<br>Dynamic μ ≤0.12 @ 1MPa |
| Skived Gasket-Grade Sheet | • Flange seals for ASME B16.21 facings<br>• Valve stem packing rings | ASTM D626 Compression Molding Grade<br>RoHS 2011/65/EU |
| Medical-Grade PTFE Sheet | • Implantable device housings<br>• Sterilizable surgical instrument components | FDA 21 CFR 177.1550<br>ISO 10993-5 Cytotoxicity Certified |
| Product Category | Technical Specifications | Engineering Applications |
| Microporous ePTFE Sheet | • Node-fibril matrix: 0.2-100 μm pore throats (SEM per ASTM F1872)<br>• Air permeability: 5-200 L/m²·s @10 Pa (ISO 5636-5)<br>• Hydrostatic head ≥50 kPa (AATCC 127) | • HEPA/ULPA filter media (EN 1822-1:2019)<br>• Breathable medical drapes (ISO 22609)<br>• PEM fuel cell gas diffusion layers |
| Oriented PTFE Sheet | • Molecular alignment degree: ≥80% (WAXS analysis per ISO 13741)<br>• MD tensile strength: ≥25 MPa (ASTM D4894)<br>• Dielectric constant: ≤2.1 @1 MHz (IPC-4103) | • High-frequency PCB substrates (IEC 61249-2-11)<br>• Microwave antenna radomes (MIL-STD-1376)<br>• 5G waveguide components |
| Application Priority | Recommended Material | Technical Basis |
| Corrosion Resistance/Insulation | • Standard PTFE Sheet (ISO 13000-1 Grade)<br>→ Virgin PTFE without fillers<br>→ Resistivity >10<sup>18</sup> Ω·cm (ASTM D257) | • ASTM D3307 for chemical resistance<br>• UL 1446 insulation system certified |
| Wear Resistance/Load Bearing | • Glass Fiber Reinforced PTFE (15-25% content per ISO 13000-2)<br>• Carbon-Filled PTFE (ISO 13000-3) | • COF reduction 45% vs. virgin PTFE<br>• PV limit 1.8 MPa·m/s (ASTM D3702) |
| Sealing Applications | • Skived PTFE Sheet (ASTM D626)<br>→ Minimum 99.2% purity<br>→ 0.05-6 mm thickness (±5% tolerance) | • Creep relaxation <15% @23°C/20MPa (ISO 899-1)<br>• ASTM F37 leakage rate qualification |
Related Products
Virgin PTFE sheets are made of 100% virgin PTFE resin, including Dongyue, MIDLON, Dakin,3F brand, and PTFE molding power resin, such as DF102, M18, FR104, CGMW16F lot numbers.
We use most of Dongyue ptfe grade 1 resin, the quality is relatively stable, with few impurities. We use an equal pressure process to make the billets, which have better physical properties such as density, tensile strength, and elongation at break, making it more suitable for anti-corrosion lining. The most popular width is 1000mm,1200mm,1500mm, and 48’’ and 60’’. Thickness can be from 1/64’’ to 1/4’’ with skived sheets. Also, have strick thickness tolerance, which can be within +/-0.02mm.
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