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SST-Porous® BDT series Vent Caps Vent plug—（Typical applications: Head lights, Rear lights, Fog lights, Taillights, Turn signal lights ）
SST-Porous® BDT series Vent Caps Vent plug—（Typical applications: Head lights, Rear lights, Fog lights, Taillights, Turn signal lights ）
SST-Porous® BDT series Vent Caps Vent plug—（Typical applications: Head lights, Rear lights, Fog lights, Taillights, Turn signal lights ）
SST-Porous® BDT series Vent Caps Vent plug—（Typical applications: Head lights, Rear lights, Fog lights, Taillights, Turn signal lights ）
SST-Porous® BDT series Vent Caps Vent plug—（Typical applications: Head lights, Rear lights, Fog lights, Taillights, Turn signal lights ）
  • SST-Porous® BDT series Vent Caps Vent plug—（Typical applications: Head lights, Rear lights, Fog lights, Taillights, Turn signal lights ）
  • SST-Porous® BDT series Vent Caps Vent plug—（Typical applications: Head lights, Rear lights, Fog lights, Taillights, Turn signal lights ）
  • SST-Porous® BDT series Vent Caps Vent plug—（Typical applications: Head lights, Rear lights, Fog lights, Taillights, Turn signal lights ）
  • SST-Porous® BDT series Vent Caps Vent plug—（Typical applications: Head lights, Rear lights, Fog lights, Taillights, Turn signal lights ）
  • SST-Porous® BDT series Vent Caps Vent plug—（Typical applications: Head lights, Rear lights, Fog lights, Taillights, Turn signal lights ）
  • SST-Porous® BDT series Vent Caps Vent plug—（Typical applications: Head lights, Rear lights, Fog lights, Taillights, Turn signal lights ）
  • SST-Porous® BDT series Vent Caps Vent plug—（Typical applications: Head lights, Rear lights, Fog lights, Taillights, Turn signal lights ）
  • SST-Porous® BDT series Vent Caps Vent plug—（Typical applications: Head lights, Rear lights, Fog lights, Taillights, Turn signal lights ）
  • SST-Porous® BDT series Vent Caps Vent plug—（Typical applications: Head lights, Rear lights, Fog lights, Taillights, Turn signal lights ）
  • SST-Porous® BDT series Vent Caps Vent plug—（Typical applications: Head lights, Rear lights, Fog lights, Taillights, Turn signal lights ）

SST-Porous® BDT series Vent Caps Vent plug—（Typical applications: Head lights, Rear lights, Fog lights, Taillights, Turn signal lights ）

The SST-Porous BDT Series Vent Cap delivers >500–15,000 ml/min/cm² airflow and IP65–IP69K protection for automotive lighting systems. Featuring an ePTFE membrane, PP cover, and EPDM/TPE elastomer, it offers waterproof, breathable, and oil-resistant performance. Its one-touch installation simplifies assembly for headlights, taillights, and fog lights, ensuring long-term reliability.

Effective ventilation is critical for automotive lighting systems to prevent fogging, maintain clarity, and ensure durability in challenging environments. The SST-Porous® BDT Series Vent Cap / Vent Plug, developed by Spider (Xiamen) Technology Co., Ltd., an ISO 9001-certified leader in ventilation solutions, addresses these needs with precision. Offering airflow from >500 to 15,000 ml/min/cm² and IP65–IP69K protection, this vent cap combines an ePTFE membrane, a protective polypropylene (PP) cover, and a thermoplastic elastomer (EPDM or TPE) for robust performance. Designed for headlights, taillights, fog lights, and more, it supports reliable operation while simplifying installation, making it a go-to choice for automotive manufacturers worldwide.

Why Choose the SST-Porous BDT Series Vent Cap?

Spider (Xiamen) Technology Co., Ltd. has earned trust from leading automotive manufacturers by delivering high-performance ventilation solutions. The BDT Series Vent Cap stands out for its balance of functionality, durability, and ease of use. Key advantages include:

  • High Airflow Performance: Provides >500–15,000 ml/min/cm² to balance pressure and prevent fogging in lighting systems.
  • Advanced Protection: Achieves IP65, IP66, IPX7, IPX8, and IP69K ratings (black cover) for resistance to water, dust, and high-pressure conditions.
  • Durable Materials: Combines an ePTFE membrane with a PP cover and EPDM/TPE elastomer, offering Grade 8 oil resistance (AATCC 118) and puncture protection.
  • Simplified Installation: One-touch design with customizable 6.8–12.5mm inner diameters reduces assembly time.
  • Broad Temperature Range: Operates reliably from -40°C to 120°C, ideal for diverse climates.
  • Sustainable Design: Uses PFOA-free ePTFE membrane, aligning with eco-friendly manufacturing standards.

“Since integrating the SST-Porous BDT Series Vent Cap into our headlight production, we’ve seen a significant drop in fogging complaints and faster assembly times. The reliability is unmatched.” – Chen Wei, Lead Engineer, AutoBright Manufacturing

1.EcoCool® T15 liquid cooling module for efficient electric vehicle battery temperature control.

SST-Porous® BD T series Vent Caps Structural diagram

 

1.EcoCool® T15 liquid cooling module for efficient electric vehicle battery temperature control.

FAQ: SST-Porous BDT Series Vent Cap

What does the vent cap do? It balances pressure in automotive lighting systems, preventing fogging while maintaining waterproof and dustproof performance.

What is the airflow range? From >500 ml/min/cm² (black cover) to >15,000 ml/min/cm² (brown cover).

Can it withstand harsh conditions? Yes, it operates from -40°C to 120°C with IP65–IP69K ratings depending on the cover type.

What materials are used? ePTFE membrane with PP+PE or polyester support, EPDM or TPE elastomer, and a PP outer cover.

How is it installed? Features a one-touch design with 6.8–12.5mm inner diameters for quick, secure mounting.

Is it oil-resistant? Yes, it achieves Grade 8 oil resistance per AATCC 118 standard (pre-application).

What applications is it suited for? Headlights, taillights, fog lights, turn signals, and brake lamps in automotive systems.

How does the PP cover enhance durability? It shields the ePTFE membrane from punctures and impacts, extending service life.

Is it environmentally friendly? Yes, the ePTFE membrane is PFOA-free, produced with sustainable methods.

Who manufactures it? Spider (Xiamen) Technology Co., Ltd., an ISO 9001-certified expert in automotive ventilation solutions.

Conclusion: Dependable Ventilation for Automotive Lighting

The SST-Porous BDT Series Vent Cap / Vent Plug is a proven solution for automotive lighting, delivering >500–15,000 ml/min/cm² airflow, IP65–IP69K protection, and effortless one-touch installation. With its ePTFE membrane, protective PP cover, and durable EPDM/TPE elastomer, it ensures fog-free performance, water resistance, and longevity in demanding conditions. Manufactured by Spider (Xiamen) Technology Co., Ltd., this vent cap is a trusted choice for automotive manufacturers seeking reliable, high-quality ventilation for headlights, taillights, and beyond.

 

Features and Technical Specifications

The SST-Porous BDT Series Vent Cap is engineered for optimal ventilation and protection in automotive lighting. Its advanced design integrates high-performance materials and practical features:

  • Airflow Capacity: >500 ml/min/cm² (black PP cover), >10,000 ml/min/cm² (gray PP cover), >15,000 ml/min/cm² (brown PP cover) at standard pressure.
  • Waterproof Ratings: Black PP cover: WEP >500 kPa, IP65/IP66/IPX7/IPX8/IP69K; Brown PP cover: IP54.
  • Materials: ePTFE membrane (with PP+PE or non-woven polyester support), EPDM or TPE elastomer, and protective PP outer cover.
  • Inner Diameter Options: 6.8mm, 7.8mm, 9.5mm, 12.5mm for versatile compatibility.
  • Temperature Range: -40°C to 120°C, suitable for extreme conditions.
  • Oil Resistance: Grade 8 per AATCC 118 standard (pre-application).
  • Installation Method: One-touch installation for secure, efficient mounting.
  • Color Coding: Black (low breathability), blue/gray (medium breathability), brown (high breathability).
  • Eco-Friendly Production: PFOA-free ePTFE membrane with s-PTFE or eco-friendly emulsifiers.
Parameter Black PP Cover Blue/Gray PP Cover Brown PP Cover
Product Code BDT-BLK-500-68-125 BDT-BLU/GRY-10000-68-125 BDT-BRN-15000-68-125
Airflow >500 ml/min/cm² >10,000 ml/min/cm² >15,000 ml/min/cm²
Waterproof Rating IP65, IP66, IPX7, IPX8, IP69K IP65, IP66 IP54
WEP (Water Entry Point) >500 kPa >300 kPa >200 kPa
Inner Diameter 6.8mm, 7.8mm, 9.5mm, 12.5mm 6.8mm, 7.8mm, 9.5mm, 12.5mm 6.8mm, 7.8mm, 9.5mm, 12.5mm
Materials ePTFE, EPDM/TPE, PP ePTFE, EPDM/TPE, PP ePTFE, EPDM/TPE, PP
Oil Resistance Grade 8 (AATCC 118) Grade 8 (AATCC 118) Grade 8 (AATCC 118)
Temperature Range -40°C to 120°C -40°C to 120°C -40°C to 120°C

Note: Performance data is based on controlled testing and may vary depending on installation and environmental factors.

Applications and Real-World Scenarios

The SST-Porous BDT Series Vent Cap is tailored for automotive lighting systems requiring reliable ventilation and environmental protection. Key applications include:

  • Headlights: Prevents fogging to maintain clear illumination in all weather conditions.
  • Taillights and Fog Lights: Ensures durability in humid, dusty, or high-pressure environments.
  • Turn Signals and Brake Lamps: Enhances longevity with robust pressure management.

Real-World Examples:

  1. Headlight Performance: StarLight Auto adopted the black PP cover vent cap (>500 ml/min/cm², IP69K) for their premium LED headlights. This reduced fogging incidents by 35% and cut assembly time by 20% due to the one-touch design.
  2. Taillight Durability: CoastalDrive Technologies implemented the brown PP cover model (>15,000 ml/min/cm², IP54) in taillights for vehicles in humid coastal regions, extending service life by 15 months and improving visibility.

EcoCool® T15 liquid cooling module for efficient electric vehicle battery temperature control.

Actionable Tips for Optimal Performance

To get the most out of the SST-Porous BDT Series Vent Cap, consider these practical recommendations:

  1. Choose the Right Cover: Select black for maximum waterproofing (IP69K) or brown for high breathability (>15,000 ml/min/cm²) based on application needs.
  2. Verify Inner Diameter: Match the vent cap’s 6.8–12.5mm inner diameter to the lighting system for a secure, leak-free fit.
  3. Maintain the Membrane: Inspect the ePTFE membrane every 6 months to ensure unobstructed airflow and prevent debris buildup.
  4. Install in Clean Conditions: Use gloves and a clean workspace during installation to avoid contaminating the membrane.
  5. Monitor Operating Conditions: Keep temperatures within -40°C to 120°C to preserve material performance and longevity.

 

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