Acoustic Vents for Immersion Protection
GORE® Acoustic Vents for immersion protection are thin protective barriers that work by sealing the housing and protecting the sensitive speakers, microphones and receivers from water, dust, dirt and debris. These vents meet IP68 standards for ingress protection yet enable high-quality sound transmission through their acoustically transparent materials.
The microporous ePTFE membrane used in the construction of these vents provides continuous airflow through the vent while repelling water and solid materials. This membrane responds easily and quickly to sound pressure, with the vibration of the membrane converting the airborne energy to mechanical vibrations. These vibrations are then reproduced on the other side of the membrane, creating high-quality sound with waterproof protection.
The high airflow of GORE® Acoustic Vents prevents internal pressure buildup during device operation. This added benefit reduces the risk of premature failure and ensures that the device will continue to provide excellent sound throughout its lifetime.
- consistently high-quality sound transmission with low acoustic impedance
- increased durability with reliable dust and metal particulate protection up to IP6x standards
- improved reliability with excellent immersion protection up to IPx8 standards
- optimal acoustic performance with customized design and thickness
- easy installation with robust adhesives
GORE® Acoustic Vents for Immersion Protection
(IEC 529, 2nd)
|Minimum instantaneous water entry pressure||0.7 bar||1.0 bar||0.4 bar|
(dp = 70 mbar)
|1000 ml/min/cm22||900 ml/min/cm22||3300 ml/min/cm22|
|Average acoustic impedance
(Impedance from 200-5000Hz per ASTM 1050, modified)
|85 Rayls MKS||120 Rayls MKS||1050 Rayls MKS|
|Maximum transmission loss
(Maximum value between 200-5000Hz,per ASTM WK5285)
|< 1 dB||< 9 dB|
|Backing or support material||PET nonwoven|
|Backing or support material color||Black||White|
|Typical part thickness||0.36 mm||0.27 mm|
|Recommended part orientation||Mount on interior of housing|
|Salt spray: Seven-day test
(DIN 50021-SS:1988-06/ASTM B117)
|Not tested||No penetration of salt crystals through membrane into housing|
|Adhesive temperature range||-40°C to 100°C|
|Adhesive type||GA2025 acrylic|
|RoHS***||Meets threshold requirements|
*IP ratings depend on product housing design and part size.
**Extended immersion testing: two-meter immersion for one hour.
***EU directive 2002/95/EC (RoHS) amended by EU Commission Decision 2005/618/EC and EU Directive 2003/11/EC.
Please note that product data is subject to change. Please contact a GORE® Portable Electronic Vents associate today for assistance determining the best product for your specific application and for the most up-to-date product information.
GORE® Acoustic Vents are available in a variety of sizes and can be customized to fit your housing.
FOR INDUSTRIAL USE ONLY
Not for use in food, drug, cosmetic or medical device manufacturing, processing, or packaging operations.