Advantages of Porex Virtek® PTFE Membranes
- Robust and durable sintered PTFE due to 3D matrix construction
- Naturally hydrophobic for waterproof venting
- Self-supporting membrane that is easy to handle and omni-directional
- UL-94 flammability and UL-746C weatherability listings
- Reflecting property to diffuse light or radiation
Sintered PTFE vs. ePTFE
Proper diffuse reflectivity is critical in uniformly distributing light energy. This is particularly critical in UVC disinfection devices.
Healthcare applications may include filters for sterilization containers that need to resist microbe entry yet allow steam heat to penetrate into the box to fully sterilize the equipment.
Applications include electrical enclosures, container venting, diagnostic & medical venting, and more. Porex Virtek is the material of choice for durable and reliable venting.
Porex Virtek PTFE membrane is unaffected by virtually any chemical. This is important when supporting other media such as in chromatography applications.
Having optimal dielectric properties is critical in products such as antennae systems. Porex Virtek PTFE membrane can attain a consistent dielectric constant while maintaining tight thickness tolerances.
Applications for Porex Virtek® :
Reflectivity:
Proper diffuse reflectivity is critical in uniformly distributing light energy. This is particularly critical in UVC disinfection devices.
Filtering:
Healthcare applications may include filters for sterilization containers that need to resist microbe entry yet allow steam heat to penetrate into the box to fully sterilize the equipment.
Venting:
Applications include electrical enclosures, container venting, diagnostic & medical venting, and more. Porex Virtek is the material of choice for durable and reliable venting.
Media Support:
Porex Virtek PTFE membrane is unaffected by virtually any chemical. This is important when supporting other media such as in chromatography applications.
Dielectrics:
Having optimal dielectric properties is critical in products such as antennae systems. Porex Virtek PTFE membrane can attain a consistent dielectric constant while maintaining tight thickness tolerances.
| Style | Thickness | Water Intrusion Pressure (WEP) mbar |
Airflow l/hr/cm2 (Typ. @70mbar) |
Hydrophobic / Oleophobic |
Spec Sheet | Application |
|---|---|---|---|---|---|---|
| MD10 | 0.005″ | 175-270 | 70-125 | Hydrophobic |  |
Medical |
| MD15 | 0.007″ | 265-380 | 45-70 | Hydrophobic | |
Medical |
| MD20 | 0.009″ | 350-520 | 16-34 | Hydrophobic | |
Medical |
| MD25 | 0.007″ | 750-1000 | 2-5 | Hydrophobic | |
Medical |
| PM22S | 0.01″ | 400 | 2.3 | Hydrophobic | |
Packaging |
| PM22ST | 0.01″ | 400 | 2.3 | Oleophobic | |
Packaging |
| PMA10 | 0.007″ | 265-380 | 45-70 | Oleophobic | |
Electronic |
| PMA15 | 0.01″ | 350-520 | 16-34 | Oleophobic | |
Electronic |
| PMA20 | 0.007″ | 750-1000 | 2-5 | Oleophobic | |
Electronic |
| PMV10 | 0.005″ | 175-270 | 70-125 | Hydrophobic | |
Electronic |
| PMV10L | 0.011″ | 185-270 | 48-85 | Hydrophobic | |
Electronic |
| PMV15 | 0.007″ | 265-380 | 45-70 | Hydrophobic | |
Electronic |
| PMV15T | 0.007″ | 265-380 | 45-70 | Oleophobic | |
Electronic |
| PMV20 | 0.009″ | 350-520 | 16-34 | Hydrophobic | |
Electronic |
| PMV25 | 0.004″ | 500-750 | 5-15 | Hydrophobic | |
Electronic |
| PMV27 | 0.007″ | 750-1000 | 2-5 | Hydrophobic | |
Electronic |
| PMV30 | 0.009″ | 700-1000 | 1-4.5 | Hydrophobic | |
Electronic |
| PM0510 | 0.04″ | 410 | 3.6 | Hydrophobic | |
Legacy |
| PM0520 | 0.079″ | 550 | 3.6 | Hydrophobic | |
Legacy |
| PM3030 | 0.118″ | 70 | 2.3 | Hydrophobic | |
Legacy |
| PM5010 | 0.04″ | 7 | 9.1 | Hydrophobic | |
Legacy |
| PM5015 | 0.059″ | 30 | 4.5 | Hydrophobic | |
Legacy |
| PM5030 | 0.118″ | 20 | 2.7 | Hydrophobic¹ | |
Legacy |
| PMG25 | 0.007″ | 750-1000 | 2-5 | Hydrophobic | |
Legacy |
| PM1015 | 0.059″ | 200 | 3.2 | Hydrophobic | |
Legacy |
| PM131 | 0.01″ | 30 | 4.5 | Hydrophobic | |
Legacy |
| PM15M | 0.007″ | 270 | 7.7 | Hydrophobic | |
Legacy |
| PM21M | 0.005″ | 200 | 10 | Hydrophobic¹ | |
Legacy |
| PM3010 | 0.04″ | 40 | 3.6 | Hydrophobic | |
Legacy |
| PM6M | 0.004″ | 650 | 3.6 | Hydrophobic¹ | |
Legacy |
| PM0130 | 0.118″ | 1030 | 0.5 | Hydrophobic¹ | |
Legacy |
1 Can be Oleophobically treated to Grade 8 by AATCC TM 118-1997
We encourage you to contact our team for specification sheets
| Item Number | IP Rating | WEP* mbar(Typical | Typical Airflow l/hr/cm² @70mbar |
Filtration Efficiency* >99.99% |
Thickness mm | Max Operating Temp °C |
Salt Fog$ |
|---|---|---|---|---|---|---|---|
| PMA10‡ | 64,67 | 370 | 75 | 0.4 µ | 0.18 | 260 | No pen. |
| PMA15‡ | 65,67,68 | 520 | 25 | 0.1 µ | 0.25 | 260 | No pen. |
| PMA20‡ | 65,66,67,68 | 1050 | 7 | 0.1 µ | 0.19 | 260 | No pen. |
| Porex Virtek – General Puropse Venting product range (hydrophobic) | |||||||
| PMV10 | 64,67 | 270 | 107 | 0.5µ | 0.13 | 260 | No pen. |
| PMV10L*** | 64,67 | 270 | 85 | 0.5µ | 0.3 | 100 | No pen. |
| PMV15 | 64,67 | 370 | 75 | 0.4µ | 0.18 | 260 | No pen. |
| PMV15T‡ | 64,67 | 370 | 75 | 0.4µ | 0.18 | 260 | No pen. |
| PMV20 | 64,65,68 | 520 | 25 | 0.1µ | 0.25 | 260 | No pen. |
| PMV25 | 65,67,68 | 765 | 17 | 0.2µ | 0.1 | No pen. | |
| PMV27 | 65,66,67,68 | 1050 | 7 | 0.1µ | 0.19 | 260 | No pen. |
*WEP = Water Entry Pressure
$ ASTM B117-11 test method
*** Laminated polyolefin mesh backing
‡ Oleophobic, AATC TM 118- Grade 8
| Material | Thickness mm Nominal |
Typical Airflow l/hr/cm2 at 70 mbar |
BFE* % Nominal |
VFE** % Nominal |
Typical WEP*** mBar |
|---|---|---|---|---|---|
| MD10 | 0.13 | 107 (min 70) | >99.9 | † | 270 (min 175) |
| MD10L | 0.3 | 85 (min 48) | >99.99 | † | 270 (min 175) |
| MD15 | 0.18 | 75 (min 45) | >99.99 | † | 370 (min 265) |
| MD20 | 0.25 | 25 (min 16) | >99.9999 | >99.999 | 520 (min 350) |
| MD25 | 0.19 | 7 (min 2) | >99.9999 | † | 1050 (min 750) |
***WEP = Water Entry Pressure
**According to IEST RP-CC007.2 2009
| Porex PTFE Product | General/ Industrial Pore Size |
Thickness (In) | Thickness (MM) | Spec Sheet |
|---|---|---|---|---|
| *PM6M | 5 | 0.004 | 0.1 | |
| *PM22S | 6-10 | 0.01 | 0.25 | |
| *PM15M | 10 | 0.007 | 0.178 | |
| *PM21M | 12-16 | 0.005 | 0.13 | |
| *PM0510 | 4-7 | 0.04 | 1 | |
| *PM1015 | 7-14 | 0.059 | 1.5 | |
| *PM3010 | 25-35 | 0.04 | 1 | |
| *PM5010 | 40-75 | 0.04 | 1 | |
| *PM5015 | 30-60 | 0.059 | 1.5 | |
| *PM5030 | 30-45 | 0.118 | 3 | |
| * Items currently stocked at Interstate | ||||
| * Pore size values are measured by Bubble Point and indicate the largest measured pore. Effective mean pore sizes will be lower than the stated value and will depend on the operating conditions. | ||||
