Unique-Mem® track-etched membranes consist of a single, unsupported membrane layer (PET or PC) with cylindrical shaped pores that penetrate the membrane in defined angles. Because of this angled pore structure which divides multiple pores on one side to a single pore on the other side, regular pore sizes and densities can be achieved. Thus, exact flow-through and water entry pressure (WEP) can be reached.
Oxyphen´s track-etched membranes are resistant to pressure changes, memory effects and offer optimal flex-fatigue properties. Their naturally smooth surface delivers outstanding backflushing abilities in cell-culturing or water filtration as well as excellent repellency from liquids and solids for flow rate consistency during operation. Our membranes are available using hydrophilic, hydrophobic or oleophobic material and have precisely determined flow rates which can be customized to your application.
Unique-Mem® track-etched membranes are biologically inert, low protein binding, low in extractables and leachables, and endotoxin-free. They show high chemical resistance and therefore are well suited for organic-solvent applications. It is common for gamma-ray and X-ray sterilization methods to be used with our technologies. as well.
All Oxyphen membranes are PFOA-free and can be used freely in accordance with the latest REACH legislation from July 4, 2020.
- Single, unsupported membrane layer
- Customizable flow rate (pore size, pore density, thickness)
- Consistent flow-rates and Water-Entry-Pressure characteristics
- Transparent or translucent depending on pore density
- Adjustable burst-pressure rate
- Hydrophilic, hydrophobic or oleophobic treated (extended hydrophilic coating available)
- IP 6X-rated protection according to DIN 40050
- USP class VI
- Biological inert / low protein binding
- High chemical resistance
- Thermally stable
- Self-cleaning and reversible function through minimal pressure difference
- Resistant to Gamma-ray and X-ray sterilization
- 100% Free of PFOA: Compliant with (EC) 1907/2006 REACH / Regulation (EU) 2019/1021 POP
|Specification||Unique-Mem® Track-Etched Membranes|
10, 13, 14.5, 20 & custom sizes
|High Quality Raw Materials||
PET – naturally slightly hydrophilic
PC – naturally slightly hydrophobic
|Pore Size Ranges||
0.1µm to 10µm
|Pore Density Ranges||
105 to 109 pores per cm2
8µm to 50µm
– 40°C and 160°C (for special application < 200°C)
|Air Flow Ranges||
Up to 800 l / (bar cm2 min)
Various hydrophilic treatments increase water flow rate and wetting abilities of the membrane (example: PVP treatment)
|Hydrophobic / Oleophobic Treatment:||
Grade up to 7.5; AATCC TM 118
|Salt spray resistance test2||
According to IEC 60068-2-52, based on validation by the customer
|Temperature resistance test1||
In accordance with ISO 16750-4
|Ice water shock test1&2||
In accordance with ISO 16750-4
|Climate resistance test||
In accordance with ISO 16750-4
|Chemical resistance test1||
According LV124/ ISO 16750-5
IP 64/65/66/67/68, according to DIN 40050
1 Testing in Progress
2 Based on Customer Validation
Highlighted Case Study
Oxmotex AG is a research and development company dedicated to electroosmotic vapour and fluid transport, who developed revolutionary proprietary technology for electronically controlled moisture transport in membranes and textiles. As they looked to create a new innovative technology which would provide active electronically driven moisture transport, they came to Oxyphen for a track-etched membrane solution that would be responsive to changing climates, transport moisture beyond normal sweat rates, and be comfortable for the wearer.
EV Battery Safety Vents Application Brochure
Learn more about Oxyphen’s hydrophobic all-in-one solution that protects critical internal components from the ingress of liquid, dust, dirt, and other contaminants while also having the ability to burst at predefined overpressures to prevent potential explosions from taking place in the event of thermal runaway.
Automotive Lighting Application Brochure
Learn more about Oxyphen’s ultra-hydrophobic fiber-based membrane vents that provide a high airflow while also preventing liquid, fine dust and particles, and humidity from entering the lighting system.
Rollstock Membrane Product Brochure
Learn more about Oxyphen rollstock track-etched membrane material for in-house and large-scale manufacturing integration, which can be produced laminated or unlaminated, converted into different lengths, and surface treated upon request.
Register for our On-Demand Webinar
Delivering Precision & Control: An Introduction to Track-Etched Membrane Technology
Ideally suited for in-house and large-scale manufacturing applications, Oxyphen’s track-etched Rollstock membrane can be laminated, unlaminated, or fiber-based – supplied from polyester (PET) or polycarbonate (PC) high quality raw materials.
OxyPad® Self-Adhesive Pads
OxyPad® membrane pads, which are easily integrated inside or outside your housing design, promote consistent pressure equalization and protection against water, dust, and other harmful particulates.
OxyDisc® Die-Cut Membrane Discs
OxyDisc® die-cut membrane discs can be easily mounted and produced using either hydrophobic or hydrophilic membranes for a variety of filtration or venting application requirements.
OxySeal® Pressure Compensation Units
OxySeal® pressure compensated venting plugs, which are available with hydrophobic or oleophobic treated membranes, can prevent the ingress of liquid, water, dust, dirt, salt, and other contaminants.
Assemblies & Modules
To meet specific product solution requirements within the life-science and automotive spaces, Oxyphen partner with leading OEMs to develop highly tailored components and assemblies for specific applications.
Oxyphen consists of a team of scientists, problem solvers, engineers, and strategic thinkers who are passionate about creating high-value solutions that bring customer’s product designs or concepts to life.
Other Membrane Technologies
RoTrac® Laminated Track-Etched Membranes
RoTrac® track-etched membranes are Unique-Mem® membranes that are supported with non-wovens (PP or PET) to create a more robust membrane. They are available as either hydrophilic or hydrophobic membranes.
Fiber-based membranes are surface modified using a super-hydrophobic coating to repel water and other liquids while still allowing maximum airflow.
Interested in speaking with one of our track-etched membrane experts?