Self Adhesive Round EPTFE Waterproof Breathable Membrane for Electronic Pressure Equalization & Dust Protection

Material & Structure

Made of high-quality EPTFE breathable membrane with strong self-adhesive glue and yellow release liner. Black ring positioning design with precise die-cutting, easy application after peeling off backing paper.

Key Features

Excellent waterproof, dustproof and venting performance. Block liquid water and fine dust while equalizing internal-external air pressure to prevent shell bulging or water damage caused by thermal expansion.

Wide Application

Widely used for Bluetooth earbuds, smart watches, speaker drivers, car sensors, precision instruments, charging cases and small home appliances.

Durability

High temperature & chemical resistance, sweat-proof and aging-resistant. Strong adhesive keeps pads firmly attached under normal working environment.