Weldable Vents for Welding Integration

SST-POROUS® Weldable Vents are low-profile ePTFE membranes designed for automated heat-seal and ultrasonic welding. They equalize pressure, reduce condensation, and protect sealed electronics in high-volume production.

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    SST-POROUS® Protective Vents for Welding Integration

    SST-POROUS® Weldable Vents are low-profile ePTFE membranes designed for automated installation using heat-seal or ultrasonic welding.

    They are intended for applications where a welded vent is preferred: high-volume production, limited installation space, high IP protection, and housings exposed to shock or vibration.

    Benefits

    • Rapid pressure equalization to reduce stress on enclosure seals
    • Reduced condensation through continuous air exchange
    • Hydrophobic protection against water, dust, and contaminants
    • Durable mechanical bond for automated welding lines
    • Low-profile design for compact polymer enclosures

    Where welded vents are used

    Weldable vents provide a robust bond while equalizing pressure inside sealed electronics. They can only be used with enclosures made of polymer materials.

    Typical applications include:

    • Automotive electronics (ECU, sensors, lighting)
    • Outdoor equipment and industrial controls
    • EV battery systems and energy storage
    • Consumer electronics and telecommunications devices

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    SST is a fluoropolymer technology R&D and innovation company based on materials technology, focusing on the R&D and application research of PTFE porous materials.

    A Durable and Easy-To-Apply Vent Solution

    STT® Protective Vents Weldable  Series provides:

    Large ventilation capacity

    Sound loss is less than 2dB, maintaining excellent sound quality

    High protection level

    IP67 / IP68 / IP69K optional

    Easy to solder

    Ultrasonic or hot melt welding optional

    Automotive Electronics

    Main Applications:

    • Electronic Control Units (ECU)
    • New Energy Vehicle Battery Packs and Motor Controllers
    • Powertrain Systems
    • Vehicle Controllers
    • High-Temperature Environments (Motors, Gearboxes)

    Challenges & Solutions Automotive components in high-temperature and high-pressure environments often face seal degradation, pressure buildup, and contamination risks, leading to system failure.

    Spider Welding Vent uses high-performance ePTFE membrane that can withstand extreme temperatures (up to 250°C for weldable types). It provides reliable pressure equalization, excellent waterproof and dustproof protection (IP67/IP68/IP69K), and strong chemical resistance. The welding installation ensures a permanent, robust seal, making it ideal for demanding automotive applications while reducing long-term maintenance costs.

    1. Prevent Condensation and Corrosion: Outdoor and industrial equipment exposed to harsh weather conditions easily suffers from condensation. Welded vent membranes allow moisture vapor to escape while blocking rainwater, dust, and pollutants, keeping interiors dry.
    2. Protect Precision Components: The robust welded design effectively shields circuit boards, power modules, and sensors from environmental ingress, extending equipment service life.
    3. Balance Internal and External Pressure: Extreme temperature variations generate significant pressure differences. Welded vent membranes provide reliable real-time pressure equalization to prevent enclosure damage.
    4. Enhance Durability in Harsh Environments: The permanent weld ensures high resistance to UV, salt spray, and mechanical stress, improving overall system reliability in demanding outdoor and industrial settings.

    In summary, Welded vent membrane in outdoor and industrial electronics effectively prevents condensation and corrosion, protects precision components, balances pressure differentials, and enhances durability in harsh environments, greatly improving equipment protection and long-term performance.

    Acoustic vents for portable electronics by Spider, providing clear sound transmission while protecting internal components.

    Main Applications:

    • Professional Walkie-Talkies
    • Rugged Portable Devices
    • Industrial Handheld Equipment

    Challenges & Solutions Portable and rugged devices require robust sealing that can endure mechanical stress, water exposure, and pressure changes without compromising protection.

    Spider Welding Vent offers a permanent, high-strength installation using ePTFE membrane. It ensures reliable pressure balancing and high-level protection (IP67/IP68), making it suitable for demanding portable applications where durability is critical.

    Weldable Protective Vents IP67 IP68 Pressure Compensation

    BDW Series

    Available in protection levels IP67/IP68/IP69

    Easily weldable with a range of plastic materials
    using ultrasonic and thermal fusion

     

     

    BD03 Series

    Available in protection levels IP67/IP68/IP69

    Easily weldable with a range of plastic materials
    using ultrasonic and thermal fusion

     

     

    BDG Series

    Available in protection levels IP67/IP68/IP69

    Easily weldable with a range of plastic materials
    using ultrasonic and thermal fusion

     

     

    BD06 Series

    Available in protection levels IP67/IP68/IP69

    Easily weldable with a range of plastic materials
    using ultrasonic and thermal fusion

    BD01 Series

    Available in protection levels IP67/IP68/IP69

    Easily weldable with a range of plastic materials
    using ultrasonic and thermal fusion

    SST Products have been fully tested by independent laboratories and certified to meet a range of IEC, UL and DIN testing standards, including durability/resistance to environmental challenges including:

    • IP Ratings
    • Salt Fog Testing
    • Temperature Testing
    • Humidity Testing
    • Flammability Testing

    Technical Parameters

                      Product Model Typical air permeability (ml/min/cm2) @ 7kPa Protection level Water pressure resistance KPa, 60S Material color Temperature range (°C)
    BD 0125022SY 350 IP68 100 ePTFE + modified polyester White -40~160
    BD 0115070SY 750 IP68 50 ePTFE + modified polyester White -40~160
    BD 03200300 2500 IP67 40 ePTFE + modified polyester White -40~120
    BD 06200100 SY 1000 IP67 30 ePTFE + modified polypropylene White -40~85
    BD 06200350 SY 3500 IP67 15 ePTFE + modified polypropylene White -40~85