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Membrane Properties
| Physical Properties | Referred Test Standard | Unit | Typical Data |
|---|---|---|---|
| Membrane Color | / | / | Black |
| Membrane Construction | / | / | Mesh/PTFE |
| Membrane Surface Property | / | / | Hydrophobic |
| Thickness | ISO 534 | mm | 0.07±0.01 |
| Interlayer Bonding Strength (90 degree peel) | Internal Method | N/inch | >2 |
| Min Air Flow Rate | ASTM D737 (Test Area: 1 cm²) | ml/min/cm² @ 3Kpa | >6000 |
| Typical Air Flow Rate | ASTM D737 (Test Area: 1 cm²) | ml/min/cm² @ 3Kpa | 9000 |
| Water Entry Pressure | ASTM D751 (Test Area: 1 cm²) | KPa for 30 sec | 5 |
| IP Rating | IEC 60529 | / | IP64/IP65/IP66 |
| Water Vapor Transmission Rate | GB/T 12704.2 (38℃/50%RH, Inverted Cup Method) | g/m²/24h | >5000 |
| Oleophobic Grade | AATCC 118 | Grade | N/A |
| Operation Temperature | IEC 60068-2-14 | ℃ | -40℃～100℃ |
| ROHS | IEC 62321 | / | Meet ROHS Requirements |
| PFOA & PFOS | US EPA 3550C & US EPA 8321B | / | PFOA & PFOS Free |
Notes
(1) Acoustic Response and IP Grade test part dimension: I.D. 2.0 mm / O.D. 6.0 mm.
(2) The results are tested using a typical digital output MEMS microphone system and self-designed test device in ZZPIP laboratory with representative sample size. The design of the device will affect final performance.
Application
This series of membranes can be used in waterproof and acoustics membrane for portable and wearable electronic devices, such as Smart Phone, Earphone, Smart Watch, and Bluetooth Speaker, Alertor etc.
The membrane could provide the device with immersed waterproof protection and minimal sound transmission loss, keeping the device with the excellent acoustics transmission performance.
The membrane could provide the device with immersed waterproof protection and minimal sound transmission loss, keeping the device with the excellent acoustics transmission performance.
Shelf Life
Shelf life is 5 years from the date of receipt for this product as long as this product is stored in its original packaging in an environment below 80° F (27° C) and 60% RH.
Technical Notice
All data above are typical data for the membrane raw material, for reference only, and should not be used as special data for outgoing quality control.
All technical information and advice given here is based on ZZPIP’s previous experiences and test results. ZZPIP gives this information to the best of its knowledge, but assumes no legal responsibility. Customers are asked to check the suitability and usability in the specific application, since the performance of the product can only be judged when all necessary operating data are available.
All technical information and advice given here is based on ZZPIP’s previous experiences and test results. ZZPIP gives this information to the best of its knowledge, but assumes no legal responsibility. Customers are asked to check the suitability and usability in the specific application, since the performance of the product can only be judged when all necessary operating data are available.
Frequently Asked Questions
What is the construction and material of this waterproof acoustic membrane?
The membrane is constructed from a combination of Mesh and PTFE materials. It features a black color and has hydrophobic surface properties to effectively repel water.
What IP rating does this membrane provide for electronic devices?
According to the IEC 60529 standard, the membrane achieves IP ratings of IP64, IP65, and IP66, providing reliable ingress protection against dust and water splashes.
What are the recommended storage conditions and shelf life?
The product has a shelf life of 5 years from the date of receipt, provided it is kept in its original packaging and stored in an environment below 80°F (27°C) and under 60% relative humidity (RH).
Does this membrane satisfy environmental compliance standards?
Yes, the membrane fully meets ROHS requirements (tested under IEC 62321) and is verified as PFOA & PFOS free (tested under US EPA 3550C & US EPA 8321B).
How does the membrane affect the acoustic output of devices?
It is engineered to balance protection and sound quality, offering immersed waterproof protection while ensuring minimal sound transmission loss for optimal acoustic performance.