Waterproof breathable membrane (ePTFE)

Waterproof & Dustproof Mesh · Protection · Precision Die-Cutting for Electronics

Waterproof breathable membrane (ePTFE)
Waterproof & Dustproof Mesh

Waterproof breathable membrane (ePTFE)

Expanded polytetrafluoroethylene (ePTFE) microporous membrane, with pore sizes smaller than water molecules but larger than air molecules, achieving selective permeability for waterproofing and breathability. Protection level reaches IP67, and with special coating can reach IP68. It balances internal and external pressure differences and prevents condensation, making it a core protective material for outdoor sensors, automotive electronics, and battery pack vent valves.

Key Features

  • Waterproof and breathable (IP67), microporous selective permeability
  • Balance internal and external pressure differences, prevent sealing cavity deformation
  • Anti-condensation, protect internal electronic components
  • Good weather resistance, suitable for long-term outdoor use

Applications

Protection for outdoor/automotive sensors · Battery pack vent valves · Outdoor lighting · Communication equipment · Beauty devices · 3C protection

Material Tags

ePTFEWaterproof and breathableIP67IP68pressure balanceGore

Specifications

TypeWaterproof breathable membrane (ePTFE)
Protection levelIP67 (waterproof and dustproof), special coating can achieve IP68
Air permeability≥ 10000 ml/min/cm²
Sound loss> 1 dB
Temperature resistance−40 ~ 105 ℃
AdhesiveAcrylic / Silicone
Die-cutting tolerance±0.10 mm

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