Kunshan Xinzhenpin New Thin Film Material Technology Co LTD.
| Thickness | 0.10 – 0.50 mm |
| Oleophobicity Grade | ≥ 7 |
| Chemical Resistance | Corrosion-resistant，Acid-resistant |
| Moisture Vapor Transmission Rate | 8,000 – 18,000 g/m²·24h |
| Delivery Time | 15 working days |
| 90° Peel Strength | ≥ 15 N/25mm |
| Material Compliance | PFAS Free |
| Payment Terms | T/T |
| Waterproof Rating | IP68 |
| Operating Temperature | -40°C to +150°C |
| Water Entry Pressure | ≥ 400 kPa |
| Size | Customizable |
| Supply Ability | Monthly Output: 300,000 sqm |
| Air Permeability | Gurley：3 – 30 s/100ml @ 300 ml |
| Color | White |
| Packaging Details | Small orders by express; bulk orders by FCL sea freight. |
| Brand Name | OEM/ODM |
| Certification | IATF16949/ISO |
| Model Number | OEM/ODM |
| Place of Origin | China |
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Product Specification
| Thickness | 0.10 – 0.50 mm | Oleophobicity Grade | ≥ 7 |
| Chemical Resistance | Corrosion-resistant，Acid-resistant | Moisture Vapor Transmission Rate | 8,000 – 18,000 g/m²·24h |
| Delivery Time | 15 working days | 90° Peel Strength | ≥ 15 N/25mm |
| Material Compliance | PFAS Free | Payment Terms | T/T |
| Waterproof Rating | IP68 | Operating Temperature | -40°C to +150°C |
| Water Entry Pressure | ≥ 400 kPa | Size | Customizable |
| Supply Ability | Monthly Output: 300,000 sqm | Air Permeability | Gurley：3 – 30 s/100ml @ 300 ml |
| Color | White | Packaging Details | Small orders by express; bulk orders by FCL sea freight. |
| Brand Name | OEM/ODM | Certification | IATF16949/ISO |
| Model Number | OEM/ODM | Place of Origin | China |
| High Light | ADAS Sensor Acoustic Vent Membrane ，PFAS Free Acoustic Vent Membrane ，Blind Spot Detection Sensor EPTFE Vent | ||
EPTFE ADAS Blind Spot Detection Sensor Acoustic Vent Membrane
This EPTFE acoustic vent membrane is designed for ADAS blind spot detection sensors that use ultrasonic or millimeter-wave radar technologies to monitor adjacent lanes. The low-dielectric-constant EPTFE material introduces less than 0.5 dB of radar signal attenuation, making it virtually transparent to 24 GHz and 77 GHz radar waves while providing full environmental sealing. It shields the sensor’s radiating element from rain, snow, road spray, and car wash detergents that can cause signal absorption or reflection artifacts. The membrane’s superhydrophobic surface encourages water to bead and roll off, preventing the formation of a water film that could degrade radar performance. With an operating temperature range spanning from -40°C to +105°C and compliance to automotive thermal shock profiles, this vent ensures that blind spot monitoring and rear cross-traffic alert systems function reliably across all climates. It also resists de-icing chemicals such as calcium chloride and magnesium chloride, which are increasingly used on winter roads.
ADAS blind spot sensors are safety-critical components. Any obstruction on the sensor face—water, ice, mud, or salt residue—can generate false positives or system inhibition, leading to driver frustration or dangerous situations. This EPTFE vent membrane provides a non-stick, self-cleaning surface that minimizes contaminant adhesion. Its low dielectric constant reduces reflection at the air-material interface, maintaining the sensor’s calibrated radiation pattern. The solution helps Tier 1 suppliers achieve AEC-Q100 reliability benchmarks for sensor modules and supports OEM compliance with Euro NCAP and NHTSA safety recommendations. By preventing moisture ingress, it also extends the operational life of the sensor electronics, reducing warranty costs.
| Parameter | Typical Value |
|---|---|
| Material | EPTFE with low-dielectric coating |
| Frequency Range | 24 GHz, 76 – 81 GHz compatible |
| Radar Signal Attenuation (one-way) | ≤ 0.4 dB |
| Dielectric Constant (εr) | ~1.1 |
| Water Contact Angle | > 135° |
| Water Entry Pressure | ≥ 0.15 MPa |
| IP Rating | IP67 / IP69K |
| Operating Temperature | -40°C to +105°C |
| Chemical Resistance | CaCl₂, MgCl₂, NaCl, windshield fluid |
| Adhesion to Housing | LSE acrylic adhesive for ABS/PC/PBT |
Side mirror blind spot detection radars, rear cross-traffic alert sensor modules, bumper corner radars for automatic lane change assist, and 360° surround sensor arrays.
Radar waves pass through the EPTFE membrane with minimal reflection because the material’s dielectric constant is close to that of air. Water, which has a high dielectric constant and strongly absorbs radar energy, is prevented from forming a sheet over the sensor face by the hydrophobic surface that causes it to bead and slide off. The fine pore structure blocks dust and salt particles that could cause surface roughness and scattering. The result is a consistently clean, dry sensor face that maintains factory-calibrated radar beam patterns over years of driving.
Q1: Will heavy rain temporarily blind the sensor?
A: No. The hydrophobic surface ensures that water beads up and is quickly shed by airflow or gravity. Even in heavy rain, no continuous water film forms, so radar attenuation remains below 1 dB.
Q2: Does the membrane need to be calibrated out of the radar path?
A: The attenuation is consistent and can be accounted for in the sensor’s factory calibration. No dynamic compensation is needed.
Q3: Can it withstand automated car washes with rotating brushes?
A: Yes. The membrane is mounted recessed behind the sensor housing and protected from direct brush impact. The material’s abrasion resistance is sufficient for incidental brush contact, but the housing design provides the primary mechanical protection.
Company Details
Business Type:
Manufacturer,Exporter
Year Established:
2018
Total Annual:
1,000,000-2,000,000
Employee Number:
30~50
Ecer Certification：
Verified Supplier
Kunshan Xinzhenpin New Thin Film Material Technology Co., Ltd. Established in 2018, Kunshan Xinzhenpin is a specialized manufacturer dedicated to ePTFE waterproof and breathable membrane solutions. We operate a fully integrated production chain covering ePTFE raw membrane manufacturing, composite a... Kunshan Xinzhenpin New Thin Film Material Technology Co., Ltd. Established in 2018, Kunshan Xinzhenpin is a specialized manufacturer dedicated to ePTFE waterproof and breathable membrane solutions. We operate a fully integrated production chain covering ePTFE raw membrane manufacturing, composite a...
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