Product Characteristics of Adhesive Waterproof Venting Membrane - Wuxi Sinceriend New Material Technology Co., Ltd.

Adhesive waterproof venting membranes are designed to provide reliable protection and functionality in various applications. Here are their main characteristics:

Excellent Waterproof : These membranes are made from materials like ePTFE (expanded polytetrafluoroethylene) that have a dense microstructure, preventing water from penetrating2. They can withstand high water pressures, with water entry points often exceeding 50 kPa (dynamic wep 30 sec, rt), ensuring effective waterproofing even in harsh environments2.
Good Ventilation Capacity: The membrane allows air and gases to pass through freely2. This helps in equalizing pressure differentials, reducing stress on sealed enclosures and preventing issues like deformation or damage due to pressure build - up5. For example, typical airflow can be > 400 ml/min/cm² at a pressure difference of 70 mbar, enabling efficient air exchange2.
Hydrophobic and Oleophobic Properties: They repel both water and oil, maintaining their performance even when exposed to liquids2. This property ensures that the membrane does not get clogged or its airflow capacity reduced when in contact with substances like rainwater, oil, or other fluids, enhancing its durability and reliability2.
Strong Adhesive Force: The adhesive on the membrane has a high bond strength, ensuring secure attachment to different surfaces2. It can adhere well to materials such as plastic, metal, and glass, with adhesive strength often exceeding 19 N/25 mm according to relevant standards, providing a stable and long - lasting connection2.
Wide Temperature Range: These membranes can operate over a broad temperature range, typically from - 40 °C to +130 °C2. This allows them to be used in various environments, from extremely cold to hot conditions, without significant degradation in performance.
Customizability: They can be customized in terms of size, shape, and adhesive composition to meet specific application requirements2. Manufacturers can produce membranes with different diameters, thicknesses, and adhesive properties according to customer drawings or samples, offering flexibility in design and installation2.

In summary, adhesive waterproof venting membranes offer a combination of waterproofing, ventilation, and adhesive properties, making them suitable for a wide range of applications in industries such as automotive, electronics, and outdoor equipment.