cobetter

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%.
Injection Control	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
Acoustics	Flow modulator, balance the airflow pressure in the speaker room
Mobile Electronics housing	Mobile electronic products vent, providing IP protection above IP6
Mobile Electronics housing	Outdoor electronics housing vent
Telecommunication	Low dielectric media in antennas and cables
UVC Reflective Media Cobetter microporous PTFE sheets provide reliable resistance to degradation, high reflectivity, and diffuse (Lambertian) reflectance
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 system	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