Waterproof electronic vapor horn sound permeable IP68 waterproof and breathable white membrane, EPTFE

EPTFE waterproof breathable membrane
Breathability: 1000-3500ml/min/7kp/cm2
Protection level: IP67-IP68 (2 meters underwater, soaking for 1 hour, impermeable)
Temperature resistance range: -40 ℃ -100 ℃
Thickness: 0.15mm white non-woven fabric support
EPTFE membrane is made by expanding and stretching polytetrafluoroethylene. After being stretched, the polytetrafluoroethylene film forms a network structure in three dimensions, with over 9 billion micropores per square inch on the surface of the film. Excellent stretching technology can maintain the diameter of micropores between 0.1-1.0 micrometers (0.1-1.0 × 10-6m). More than 10000 times smaller than water droplets, ePTFE membrane has excellent water resistance performance (exceeding the waterproof requirements of IP67 standard), and even the smallest water droplets (light mist) cannot pass through the membrane. At the same time, the diameter of the micropores is over 700 times larger than that of water vapor molecules. So while having strong waterproof (and preventing oil, dust, bacteria, etc.) performance, it can also allow gas molecules to easily pass through the micropores on the membrane, thereby achieving the function of air permeability and pressure balance. Therefore, it achieves the removal of negative pressure water absorption caused by gas expansion and contraction stress, and solves the problem of fog and vapor.
Waterproof breathable membrane
1: Effectively blocking moisture, salt, and other corrosive liquids, exposing sensitive components of equipment to the outdoors.
2: Contact with liquids such as water and oil can quickly restore breathability.
3: The dense and uniform distribution of micropores not only provides waterproofing and breathability, but also effectively blocks dust.
4: Balance pressure, prevent air and moisture around the sealing components from entering the body, and protect the tightness.
5: Protect components from weather conditions and withstand immersion in water and other liquids.
6: Make the protected components easy to clean and not affected by corrosive pollutants, ensuring component performance and service life.
7: UV resistance, strong chemical inertness, and resistance to extreme temperatures.
8: Thin and lightweight, with good concealment, it brings convenience to design and production, and is an ideal waterproof and breathable product. Waterproof breathable membrane has three main functions:
1. Waterproof: Micro pores of 0.1-0.5 microns, with a pore size less than 10000 times that of water droplets, prevent moisture from passing through, effectively protect sensitive components, prevent liquid erosion, and improve product service life.
2. Breathability: The micropore size is 700 times larger than that of water vapor, making it waterproof while allowing air to pass through smoothly, effectively dissipating heat, preventing fogging on the inner wall of the product, and balancing the air pressure inside and outside the space.
3. Dust prevention: Micro porous channels form a mesh like three-dimensional structure inside the membrane, with uniformly dense micro pores distributed to block dust and achieve effective dust prevention. The smallest particles that can be captured are 0.1 microns.
Application industry:
Three proof mobile phones, hearing aids, portable devices, telecommunications equipment, electronics industry
Our company specializes in producing waterproof and breathable e-pTFE electronic membranes, and can composite non-woven support materials according to customer requirements