Keep automobiles safer with higher performing venting materials
Compared to competitive vents, POREX Virtek® vents:
- Are a sintered structure that is tougher and more durable than expanded PTFE.
- Can be directly ultrasonic or thermally welded to plastic enclosures, creating a permanent bond.
- Restricts moisture vapor transmission, which results in less humidity entering into the enclosure during cooling, thereby reducing potential condensation issues.

Automotive Lighting Vents
Minimize headlight condensation

Electronic Enclosure Vents
Protect electronic enclosures with sintered PTFE material
Automotive Lighting Vents

Optimize headlight performance
Without the fragility and variability common in non-sintered materials, POREX Virtek PTFE is a unique sintered material that outperforms competitive expanded materials. With its robust porous structure, our vents equalize pressure while minimizing humidity flow into the enclosure and protects enclosure seals from premature failure.
Specifically designed for exterior automotive lights, our vents:
- Reduce moisture buildup and condensation– POREX Virtek resists the entry of moisture into the headlight enclosure, thus lowering the risk of condensation on the headlamp lens.
- Stop contaminants from entering enclosure–POREX Virtek sintered material repels water, dust, oil and other automotive fluids.
- Assemble easily–Very robust sintered structure allows easy handling and can be ultrasonic or thermal welding without cumbersome assembly methods.
- Free of PFOA: Compliant with (EC) 1907/2006 REACH / Regulation (EU) 2019/1021 POP
Auto Lighting Vents PTFE
Porex Virtek – Automotive / oleophobic product range (hydrophobic & oleophobic)
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
** According to IEST RP-CC007.2 2009
$ASTM B117-11 test method
***Laminated polyolefin mesh backing
‡ Oleophobic, AATCC TM 118 – Grade 8
Moisture Vapor Transmission Rate approx. 900g/m2/day. ASTM E96-16 water escaped from sealed cup @ 23±2°C, 50±10%rH chamber.
Properties are typical and not meant for specifications. Selected options and adhesives may affect properties
RoHS, WEEE, REACH Compliant (PFOA Free)
PRODUCT OFFERING BY MATERIAL SERIES – POREX Virtek® ADHESIVE DISCS
Dimenions (OD x ID in mm)
Material Series | 5 x 2 mm* | 7 x 3 mm | 10 x 6 mm | 12.7 x 7.1 mm | 20 x 13 mm |
---|---|---|---|---|---|
PMV10 | PMV10M | PMV10N | PMV10P | PMV10W | PMV10C |
PMV10L | PMV10LM | PMV10LN | PMV10LP | PMV10LW | PMV10LC |
PMV15 | PMV15M | PMV15N | PMV15P | PMV15W | PMV15C |
PMV20 | PMV20M | PMV20N | PMV20P | PMV20W | PMV20C |
PMV27 | PMV27M | PMV27N | PMV27P | PMV27W | PMV27C |
PMA10 | PMA10W# |
Special order items highlighted for higher MOQ. All others are stocked items
3M 93020LE adhesive standard (120 °C continuous use temperature
# Oleophobic treated and high temperature adhesive (good to 150 °C)
M, N, P, W & C are size codes as listed in column heading.
Many other standard and custom sizes available. Contact Porex for more information

Related Resources:
Datasheet: POREX Ingress Protection (IP) Rated Vents
Datasheet: Porex Virtek IP Rated Protection Vents
Datasheet: POREX Automotive Components
Demonstration video: Demo of Porex Virtek PTFE Common Joining Techniques
Demonstration video: Hydrophobicity and handling properties: POREX Virtek PTFE vs. expanded PTFE
Demonstration video: Dangers of not venting a sealed enclosure
Demonstration video: Keep electronics dry and protected with POREX Virtek PTFE vents
Demonstration video: Porex Virtek PFOA Free Membrane vs. Cast and Non-woven Membranes
Electronic Enclosure Vents

Protect electronic enclosures with sintered PTFE material
POREX Virtek PTFE is a unique sintered material that outperforms common expanded PTFE.
Without the fragility and inconsistency found in non-sintered PTFE materials, our vents:
- Reduce pressure buildup in sealed enclosures–Air-permeable structure acts as a pressure relief valve, equalizing pressure and protecting enclosure seals from premature failure.
- Stop contaminants from entering enclosure– POREX Virtek sintered material repels dust, water, oils and other automotive fluids.
- Assemble easily–Sintered structure allows easy handling and ultrasonic welding without cumbersome assembly techniques.
- Free of PFOA: Compliant with (EC) 1907/2006 REACH / Regulation (EU) 2019/1021 POP
Auto Lighting Vents PTFE
Porex Virtek – Automotive / oleophobic product range (hydrophobic & oleophobic)
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
** According to IEST RP-CC007.2 2009
$ASTM B117-11 test method
***Laminated polyolefin mesh backing
‡ Oleophobic, AATCC TM 118 – Grade 8
Moisture Vapor Transmission Rate approx. 900g/m2/day. ASTM E96-16 water escaped from sealed cup @ 23±2°C, 50±10%rH chamber.
Properties are typical and not meant for specifications. Selected options and adhesives may affect properties
RoHS, WEEE, REACH Compliant (PFOA Free)
PRODUCT OFFERING BY MATERIAL SERIES – POREX Virtek® ADHESIVE DISCS
Dimenions (OD x ID in mm)
Material Series | 5 x 2 mm* | 7 x 3 mm | 10 x 6 mm | 12.7 x 7.1 mm | 20 x 13 mm |
---|---|---|---|---|---|
PMV10 | PMV10M | PMV10N | PMV10P | PMV10W | PMV10C |
PMV10L | PMV10LM | PMV10LN | PMV10LP | PMV10LW | PMV10LC |
PMV15 | PMV15M | PMV15N | PMV15P | PMV15W | PMV15C |
PMV20 | PMV20M | PMV20N | PMV20P | PMV20W | PMV20C |
PMV27 | PMV27M | PMV27N | PMV27P | PMV27W | PMV27C |
PMA10 | PMA10W# |
Special order items highlighted for higher MOQ. All others are stocked items
3M 93020LE adhesive standard (120 °C continuous use temperature
# Oleophobic treated and high temperature adhesive (good to 150 °C)
M, N, P, W & C are size codes as listed in column heading.
Many other standard and custom sizes available. Contact Porex for more information

Related Resources:
Datasheet: POREX Ingress Protection (IP) Rated Vents
Datasheet: Porex Virtek IP Rated Protection Vents
Datasheet: POREX Automotive Components
Demonstration video: Demo of Porex Virtek PTFE Common Joining Techniques
Demonstration video: Hydrophobicity and handling properties: POREX Virtek PTFE vs. expanded PTFE
Demonstration video: Dangers of not venting a sealed enclosure
Demonstration video: Keep electronics dry and protected with POREX Virtek PTFE vents
Demonstration video: Porex Virtek PFOA Free Membrane vs. Cast and Non-woven Membranes