Cobetter Skived PTFE Membrane is a porous PTFE membrane, produced by skiving process based on sintering technology. The PTFE granules are sintered and formed under high temperature and high pressure molding, then skived into a membrane with a specific thickness by professional skiving equipment, and converted into roll and more applicable forms. It is worth mentioning that the pore size of the membrane has been determined in the early sintering process, combine with Cobetter's special skiving process and professional process control, our skived porous sintered PTFE membrane ensures the consistency of the pore size and the stability of the pore structure. The skived PTFE is made of pure PTFE material without any additives, reinforcing agents, and no supporting layer. Compared with the expanded PTFE membrane, sintered and skived PTFE membrane can better exert the great physical and chemical properties of Polytetrafluoroethylene PTFE material itself. In terms of formats, Cobetter offers standard rolls, sheets, die cut discs, connected with adhesives, and various other forms.
Manufacturing Process
For applications in need of ultra-hydrophobicity, high air permeability, high temperature tolerances, good corrosion resistance, out-standing chemical resistance, and great robustness, sintered and skived PTFE membrane is a perfect choice.
Key Measuring Properties
- Water Entry Pressure (WEP)
- Air Permeability (Gurley)
- Maximum Working Temperature
- Continues Working Temperature
- IP Protection Rate
- Reflective Percentage
- Dielectric constant
Suitable Assembly Methods
- Thermal welding
- Ultrasonic welding
- Connected with adhesive
- Press fit
- Overmolding
Geometric Options
| Width | Length | Thickness | Pore Size | |
| Roll | Various slit roll width, maximum 300mm | Customized length | 0.1 - 3.5 mm | 0-10um |
Size | Pore Size | |||
| Discs | Based on die cutting, maximum 300mm diameter discs | 0-10um | ||
Other Various Formats
- Rotary cut plugs
- Rods
- Tubes
- Thermoformed shapes
- Customized shapes from machined process
Sintered and Skived PTFE Various Applications
Medical Devices | |
Infusion Devices | IV Catheter, Arterial Syringe Devices |
Drug Delivery Components | |
Infusion Therapy Vents (venting membranes for IV spike, IV Filter, Prime Stop Cap) | |
Injection Control | Reusable Sterilization Containers, use PTFE reusable filter, withstand repeated sterilization cycles of high temperature and pressure, remain stable bacteria resistance BFE99.99%. |
Lyophilization Tray, Bone/Tissue Protection Package, use PTFE lyophilization vent filter, ensure low temperature stability, as sterile barrier with BFE99.99%. | |
Drainage | Ostomy System, Urinary Drainage Bag |
Sensor Application☆ | |
Sensor Protective Filter | Sensor protection skived PTFE membrane is designed to protect the sensor from dust, water and other pollution sources, and balance the internal and external pressures to improve the sensor life term. |
Air Monitoring Sensor | For environmental gas analysis applications, the specially treated PTFE filter can specifically adsorb single or multiple gases that may interfere the sensor reading, including H2S, SO2, HMDS, organic substances, alcohol, etc. |
Electrochemical Sensor | PTFE catalyst carrier filter can collect current, and is not easy to shrink or deform due to the curing of the catalyst. It has the characteristics of high pressure resistance. |
In-Vitro Diagnostics | |
Sample Analysis | Regent carrier, Sample Filtration, Wick, Vent |
Lab Analytical Science | |
Chromatography | Solid Phase Extraction (SPE) frits, Automated pipetting system |
Specially treated PTFE pipette filter, used to capture and bind specific target substances | |
Protein concentration, purification and filtration, retain organic solvents | |
Purification and Extraction | DNA/RNA extraction and purification, Reagent carrier |
Bio-processing Media | Disposable biological processing media and filters |
Automotive and Aerospace | |
Lighting | Vent for automotive lighting shell, balance the pressure, prevent moisture entering, and is tough and durable. |
Battery | Battery vent, safety isolator, easy for assemble |
Powertrain | Engine system vent, waterproof and oil-proof |
Fluid Reservoir | Fluid reservoir vent |
Electronic Products | |
Acoustics | Mobile electronic components, water-proof and acoustic vent |
Flow modulator, balance the airflow pressure in the speaker room | |
Mobile Electronics housing | Mobile electronic products vent, providing IP protection above IP6 |
Outdoor electronics housing vent | |
Telecommunication | Low dielectric media in antennas and cables |
UVC Reflective Media | |
UVC Disinfection | Air conditioning system disinfection, using Ultraviolet light reflective membrane |
Air purifier, using UV light reflective membrane | |
Closed disinfection system, using Disinfection Ultraviolet light reflective PTFE membrane | |
UVC lighting system, using Disinfection UV light PTFE membrane | |
Robot and mobile disinfection system, using Ultraviolet light reflective sheet | |
Portable handheld UV system, using Ultraviolet light reflective sheet | |
Household water disinfection system, using UV light reflective sheet | |
Building water disinfection system, using UV light reflective sheet | |
Personal water disinfection system, using UV light reflective sheet | |
UV Applications | Phototherapy, using Ultraviolet light reflective PTFE membrane |
UV curing, using Ultraviolet light reflective PTFE membrane | |
| Integrating spheres, using UV light reflective PTFE | |
| Architectural lighting, using UV light reflective PTFE | |
| LED application, using UV light reflective PTFE | |
Multiple optical test applications, in photometry equipments, using UV light reflective PTFE | |
Industrial Applications | |
Fuel system | Marine fuel vent, Oleophobic PTFE membrane, reduce hydrocarbon emissions |
Fuel filtration and vent for small engine systems | |
Industrial Packing | Covering or packaging material for industrial and household containers |
Petroleum and Gas | Transmission ventilation system vent |
For technical data sheet or application inquiry, you are more than welcome to contact our sales representative by sales@cobetterfilter.com or leave a message
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