Automotive Electronics

Automotive Electronics Waterproof Breathable Membrane

Mimoyin Automotive Waterproof Breathable Membrane

Automotive Waterproof Breathable Membrane

Our automotive waterproof breathable membrane is designed for vehicle electronic systems that require reliable sealing, pressure equalization and long-term environmental protection. It prevents water, dust, oil mist and condensation from damaging sensitive automotive components.

Why Automotive Electronics Need Vent Membranes

Modern vehicles contain many sealed electronic units. During temperature changes, pressure differences and humidity build-up can cause condensation, deformation or failure. Our ePTFE membrane solves these problems by allowing air exchange while blocking liquids and contaminants.

Core Advantages

  1. Stable performance from -40°C to +260°C automotive environments
  2. IP67/IP68 waterproof and dustproof protection for vehicle systems
  3. Prevents condensation inside sealed electronic housings
  4. Resistant to oil mist, fuel vapor and chemical exposure
  5. Custom die-cut shapes for automotive module integration

Main Applications

  • Engine control units (ECU)
  • Automotive sensors (pressure, temperature, ADAS systems)
  • New energy vehicle battery packs
  • On-board charging systems
  • Car lighting and control modules
  • Vehicle communication and infotainment systems

Material Options

  • ePTFE waterproof breathable membrane
  • PU waterproof breathable membrane
  • TPU laminated breathable film

Why Choose Us

  • OEM & ODM customization for automotive industry
  • Stable mass production for automotive-grade applications
  • Precision die-cutting for compact electronic modules
  • Fast sample delivery for engineering validation
  • Technical support for integration design

Order Information

  • MOQ: 1000 pcs
  • Sample Lead Time: 3–5 working days
  • Mass Production Lead Time: 7–15 working days
    Automotive waterproof breathable membrane samples - ePTFE PU TPU films for ECU sensors and battery packs

Related Materials:

Breathability & Water-Pressure Capability

TierBreathability (ml/min @ Ø10 mm, 7 kPa)Water pressureTypical application
Low breathability (high waterproof)200–1,00050–30 mDeep-water / harsh waterproof; custom per spec
Mid (balanced)1,000–5,00030–2 mAutomotive / general outdoor; custom per spec
High breathability5,000–12,00010–1 mHigh heat dissipation / low waterproof need; custom per spec

Mimoyin does not sell fixed catalog SKUs. For each project we match the membrane material to your drawing and required breathability, acoustic loss, and water pressure, then produce samples for your validation testing.