Breathable Vent: Weldable Vent | Household Chemical

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Weldable Vent

The product has good air permeability and surfactant resistance capabilities, which can equalize pressure, prevent leakage or packaging deformation of household chemicals during packaging and transportation process, to ensure product safety and intact appearance.

Technical Data

    • Membrane: ePTFE
    • Reference Thickness: 0.18mm
    • Membrane Color: White
    • Oil Rating: 7 Minimum
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Product Application : Weldable Vent


Weldable vents are made by hot-melt or ultrasonic welding, with oil-proof rating reaching up to Grade 8. The weldable vents also have excellent air permeability, high filtration efficiency, high air flow, as well as excellent chemical compatibility and temperature adaptability. After special treatment, the surface of the breathable vent can maintain good air permeability and pressure equalization even when in contact with high viscosity liquid, to avoid casing bulging or collapsing, and effectively prevent the liquid leaking.


Multiple product solutions of weldable vents can be provided for different needs. These types of membranes are easy to weld, and appropriate welding specifications and processes can be selected for different breathable membrane substrates and plastics.


Product Technical Specifications:

Characteristics Typical Membrane A Typical Membrane B Typical Membrane C Typical Membrane D
Oil Rating seven seven eight no
Typical Air Flow 600ml/min/cm²@7kPa 1000ml/min/cm²@7kPa 2200ml/min/cm²@7kPa 600ml/min/cm²@7kPa
WEP (60s) >150kPa >100kPa >50kPa >150kPa
Reference Thickness 0.18mm 0.18mm 0.18mm 0.18mm
Membrane Type ePTFE ePTFE ePTFE ePTFE
Membrane Characteristics Oleophobic Oleophobic Oleophobic Hydrophobic
Membrane Color White White White White

Key Features
  • Pressure Equalization
  • Small
  • Light Weight
  • Long Service Life
  • Easy to Weld

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