POREX® VIRTEK PTFE MEMBRANES

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

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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 pdf Medical
MD15 0.007″ 265-380 45-70 Hydrophobic pdf Medical
MD20 0.009″ 350-520 16-34 Hydrophobic pdf Medical
MD25 0.007″ 750-1000 2-5 Hydrophobic pdf Medical
PM22S 0.01″ 400 2.3 Hydrophobic pdf Packaging
PM22ST 0.01″ 400 2.3 Oleophobic pdf Packaging
PMA10 0.007″ 265-380 45-70 Oleophobic pdf Electronic
PMA15 0.01″ 350-520 16-34 Oleophobic pdf Electronic
PMA20 0.007″ 750-1000 2-5 Oleophobic pdf Electronic
PMV10 0.005″ 175-270 70-125 Hydrophobic pdf Electronic
PMV10L 0.011″ 185-270 48-85 Hydrophobic pdf Electronic
PMV15 0.007″ 265-380 45-70 Hydrophobic pdf Electronic
PMV15T 0.007″ 265-380 45-70 Oleophobic pdf Electronic
PMV20 0.009″ 350-520 16-34 Hydrophobic pdf Electronic
PMV25 0.004″ 500-750 5-15 Hydrophobic pdf Electronic
PMV27 0.007″ 750-1000 2-5 Hydrophobic pdf Electronic
PMV30 0.009″ 700-1000 1-4.5 Hydrophobic pdf Electronic
PM0510 0.04″ 410 3.6 Hydrophobic pdf Legacy
PM0520 0.079″ 550 3.6 Hydrophobic pdf Legacy
PM3030 0.118″ 70 2.3 Hydrophobic pdf Legacy
PM5010 0.04″ 7 9.1 Hydrophobic pdf Legacy
PM5015 0.059″ 30 4.5 Hydrophobic pdf Legacy
PM5030 0.118″ 20 2.7 Hydrophobic¹ pdf Legacy
PMG25 0.007″ 750-1000 2-5 Hydrophobic pdf Legacy
PM1015 0.059″ 200 3.2 Hydrophobic pdf Legacy
PM131 0.01″ 30 4.5 Hydrophobic pdf Legacy
PM15M 0.007″ 270 7.7 Hydrophobic pdf Legacy
PM21M 0.005″ 200 10 Hydrophobic¹ pdf Legacy
PM3010 0.04″ 40 3.6 Hydrophobic pdf Legacy
PM6M 0.004″ 650 3.6 Hydrophobic¹ pdf Legacy
PM0130 0.118″ 1030 0.5 Hydrophobic¹ pdf Legacy

1 Can be Oleophobically treated to Grade 8 by AATCC TM 118-1997

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.
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)
MD15 0.18 75 (min 45) >99.99 370 (min 265)
MD20 0.25 25 (min 16) >99.9999 >99.999 520 (min 350)
MD22 0.1 17 (min 5) >99.99 765 (min 500)
MD25 0.19 7 (min 2) >99.9999 1050 (min 750)
Porex PTFE Product General/ Industrial
Pore Size
Thickness (In) Thickness (MM) Spec Sheet
*PM6M 5 0.004 0.1 pdf
*PM22S 6-10 0.01 0.25 pdf
*PM15M 10 0.007 0.178 pdf
*PM21M 12-16 0.005 0.13 pdf
*PM0510 4-7 0.04 1 pdf
*PM1015 7-14 0.059 1.5 pdf
*PM3010 25-35 0.04 1 pdf
*PM5010 40-75 0.04 1 pdf
*PM5015 30-60 0.059 1.5 pdf
*PM5030 30-45 0.118 3 pdf
* 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.

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