0.5mm~10mm Thickness expanded PTFE sheets
Expanded PTFE sheets is engineered with a uniform node-fibril microstructure, delivering low creep, high compressibility, and exceptional chemical resistance. It performs reliably as a sealing and insulating material in harsh industrial environments.
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Expanded PTFE Sheets Data Sheet
| Test Item | Unit | Target |
| Compressibility | % | 45+/-5 |
| Rebound Rate | % | ≥10.0 |
| Sealing Leakage Rate | cm³/s | ≤1.0x10¯³ |
| Density | g/cm³ | 0.7-0.9 |
Product Specifications
| Width x Length x Thickness (mm) | |||
| 1500x1500x0.5 | 1500x4500x0.5 | 1500x1800x0.5 | 1800x5400x0.5 |
| 1500x1500x1 | 1500x4500x1 | 1500x1800x1 | 1800x5400x1 |
| 1500x1500x2 | 1500x4500x2 | 1500x1800x2 | 1800x5400x2 |
| 1500x1500x3 | 1500x4500x3 | 1500x1800x3 | 1800x5400x3 |
| 1500x1500x4 | 1500x4500x4 | 1500x1800x4 | 1800x5400x4 |
| 1500x1500x5 | 1500x4500x5 | 1500x1800x5 | 1800x5400x5 |
| 1500x1500x6 | 1500x4500x6 | 1500x1800x6 | 1800x5400x6 |
| 1500x1500x8 | 1500x4500x8 | 1500x1800x8 | 1800x5400x8 |
| 1500x1500x10 | 1500x4500x10 | 1500x1800x10 | 1800x5400x10 |
PTFE sheets in irregular or non-listed sizes are available for custom fabrication to meet specific customer requirements.
Expanded PTFE sheets (ePTFE) are made by processing a special process under controlled temperature and pressure to form a homogeneous, dense, multi-directional fiber structure, and which is then further processed into sheets or plates. This unique structure gives the material outstanding flexibility, low density, and excellent air permeability while maintaining PTFE’s inherent chemical inertness and thermal stability. Compared with conventional PTFE sheets, expanded PTFE sheet provides higher compressibility and recovery, making it ideal for sealing and gasket applications where surface irregularities must be compensated. It remains stable across a wide temperature range and resists almost all corrosive chemicals, solvents, and gases.
Applications:
- 1. Industrial flange gaskets and sealing joints
- 2. Chemical and pharmaceutical process equipment
- 3. Electronics and semiconductor manufacturing
- 4. Venting and filtration systems
- 5. Medical and cleanroom components requiring gas permeability
