Why let long lead times hold you back? Porex Virtek® is ready to deliver your membrane materials in just weeks – fast, flexible, and tailored to your schedule.
The changing global healthcare environment requires differentiated, reliable and reproducible medical materials for increased precision, accuracy and consistency in current and next-generation medical devices. POREX Virtek Medical PTFE membranes are 100% pure PTFE, maintaining the purity of PTFE along with its natural chemical resistance and other material benefits. Our portfolio of Medical PTFE membranes is performance tested and specifically designed for medical-surgical device applications with optimal airflow, bacterial filtration efficiency (BFE) and fluid barrier features.
Design engineered for medical-surgical device applications
- 100% pure PTFE with no interfering support layers
- Hydrophobic surface naturally sheds water
- >99.999% Bacterial Filtration Efficiency (BFE)
- ASTM F 2638 conformity
- ETO & steam sterilization compatible
- Batch ID and date code printing available
- Broad range of flow and filtration capabilities
Easy to assemble due to sintered pore structure
- Omni-directional
- Safe to handle during assembly without fear of damaging
- Can be mounted inside or outside of enclosure
- No scrim or support backing required
- Wide range of bonding techniques – adhesive backing, ultrasonic, insert molding, heat welding, or mechanical clamping
Contact us for more information or to request a sample of POREX Virtek Medical PTFE
POREX Virtek PTFE Membrane Comparison to Pall® Versapor® R & Versapor® Membranes
| Feature | POREX Virtek PTFE Membrane | Versapor® R Membrane | Versapor® Membrane |
|---|---|---|---|
| Naturally extremely hydrophobic | Yes | No (1) | No (1) |
| 100% pure PTFE | Yes | No | No |
| Durable sintered porous structure (2) | Yes | No | No |
| High-temperature resistance (continuous up to 260°C) | Yes | No | No |
| Low thickness variation (3) | Yes | No | No |
| UL 94 flammability (V0) Certified (4) | Yes | No | Yes |
| Water naturally runs off either surface (5) | Yes | No | No |
| PFOA free | Yes (6) | ID | ID |
| Over 25 years of product availability (without reformulation) (7) | Yes | No | No |
ID = Insufficient Data
(1) Requires secondary treatment to reach highest levels of hydrophobicity – Virtek does not
(2) Virtek has no shelf life or special handling instructions while Pall states 5 years and special handling instructions on some data sheets
(3) Virtek has much tighter published thickness specifications
(4) See ul.com under Porex for complete list of UL certified products
(5) Post hydrophobic treatment required and some supporting layers may retain water even after treatment
(6) Meets REACH regulations as PFOA free
(7) Virtex has always been 100% PTFE, Versapor has discontinued and reformulated their product over the past 25 years
Choose from a variety of porous membrane technologies based on your specific needs.
Porex offers a global manufacturing network to meet your supply chain needs. As a trusted membrane manufacturer of standard and customized porous material solutions, our portfolio includes a wide range of venting and filtration membrane solutions across multiple industries.
PTFE Membranes
Naturally robust and versatile to address some of the most demanding medical and industrial applications, our PTFE porous membrane technology is capable of filtering particles as small as 0.1 microns in environments up to 500°F. This naturally hydrophobic and waterproof membrane has extreme durability and provides superior chemical resistance to aggressive media and corrosive solvents that can impact device functioning and overall performance.
Sintered PTFE Membrane
Expanded PTFE Membrane (ePTFE)
Track-Etched Membranes
Track-etched membranes (TEM), which come from our sister company Oxyphen, feature a unique pore structure that offers the most precise control of pore size and pore density on the market. It revolutionizes the standard definition of surface filtration for hydrophobic, oleophobic, and hydrophilic applications.
Track-Etched Membrane
Related Resources:
Datasheet: Porex Virtek PTFE vs Pall Versapor Membrane
Learn more about typical medical PTFE applications
Infection Control
Materials for sterilization containers
Urology and Ostomy Care
Materials for urine drainage & ostomy collection systems
Drug Delivery
Materials for wearables and IV/safety catheters
Medical & Pharmaceutical Packaging
Materials for sterile container vents