Physical Characteristics: 

1. Air Permeability 

SST-Porous®adhesive & BD W00 series protective vents, the color is the material PTFE color itself，PTFE membrane is combined with acrylic adhesive, then form to high airflow adhesive protection vents.

BD W00 series characteristic (Before Application)：

Typical Airflow： > 400 ml/min/cm2（at ΔP = 70 mbar, RT）

Attention：   

SST-Porous® s-PTFE waterproof & breathable membrane, serial number named BD S00

2. Waterproof

SST-Porous® BD W00 serial–adhesive protective vents , due to the composition of “fiber” and “node” network structure, the vents not only with excellent air permeability performance but outstanding water resistant.

① BD W00 serial characteristic (Before Application)

Water entry point (WEP)： > 50kPa (Dynamic WEP 30 sec, RT)

② IP rate

IP54、IP65/ IP66（subject to the mounting struction ）、IPX7、IPX8、IP69K(Protection against particles, water, and touching according to ISO 20653:2013)

3.  Hydrophobic & oleophobic 

SST-Porous® could supply hydrophobic and Oleophobic to meet different application requirement. As it’s Oleophobic characteristic, the protection vent could maintaining airflow even after contact with high-viscous or low surface-tension liquids.

※  BD W00 serial characteristic (Before Application):

 Oleophobic rate from 1 to 8  (according to AATCC 118)

4  Weldability

SST-Porous®BD W00 series(no adhesive), The breathable venting could be mounted to the plastic housing by means of thermal melt or ultrasonic welding.

• Common type of plastic that could be welded

ABS，PBT，PP，HDPE，PA6，PC etc.

• Temperature of thermal welding

The welding temperature mainly depends on the melting point (Tm) of the plastic, generally 30~50℃ higher than selected plastic TM can be smoothly welded.

5  High adhesive strength

SST-Porous®BD Woo series Adhesive Protective vents, designed double-sided adhesive, in addition to its good adhesive with low surface PTFE  , but also take into account the viscosity of the surface with different materials.

※ Adhesion Properties of Adhesive

Adhesive strength according to FINAT FTM 1, RT Steel (after 24 h) ：      > 19 N/25 mm

6 Withstanding low to high temperature

Continuous Operating Temperature Range: -40 °C to +130 °C (when adhered)

Explanation：      

• The usage temperature of protective vents mainly depends on the temperature of adhesive or the vents base material；
• if special temperature required, SST could supply adhesive venting with more wider range of temeprature.

7  None-PFOA

SST-Porous®BD S00 serial, adhesive venting in white color,  the membrane used is e-PTFE material different from PTFE material, it’s obtained from suspension liquid, no need emulgator PFOA (PFOA suspected having carcinogenic effects), so BD S00 serials dont have PFOA.

And，if specified SST-Porous® white color BD W00 series Adhesive vent , we could choose eco-friendly emulgator prepared by PTFE dispersion raw materials, thus, SST-Porous® waterproof and breathable membranes do not contain PFOA.

8 Customizability

SST-Porous®BD W00 series Adhesive Beathable Protection vent,  customer could choose different  double-sided adhesive composition, package method, size, and shape.

※vents size OD&ID option:   OD size: 2~30 mm ID size : 1~28 mm   Attention：   SST could produce the adhesive vents according to customer drawing or sample.

※Supply Mode

Typical Application

• Safety Equipment
• Face Recognition System
• Buiding Interphone

Handling / Installation guide

SST-Porous®BD W00 series Adhesive Protection vents, it is a high-tech products that need professional final-processing.

Please contact us when planning to enter your manufacturing process, not all final-processings are compatible with this product. We will be pleased to offer our expertise in this field to you.

• Housing Surface

Recommended Surface roughness：Rz＜10µm（max：Rz＜16μm）。

Mounting surfaces should be dry and clean and free of oils, particles, release agent and other contaminants. the loose oxide layer on the surface will reduce the durability.

• Recommeded cleaning

Grease free solvent, like heptane, isp[ropanol or alcohol.

In case of incompatibility, select another cleaning agent for the application surface.

• Pressure sensitive adhesive operation guide

Press fit——suitable for semi-automatic installation

To achieve excellent press fit design and to obtain appropriate pressure，please follow the general recommendations as below:

• Pressing head shall be made by soft rubber of uniform thickness and at least 0 mm thickness（Shore hardness A  20 — 40 )
• The pressing head shall be vertical to the mounting surface and located in a position to apply pressure to the target/guard ring
• Accoding to the size of adhesive area, apply uniform pressure 7 bar recommended to the adhesive ring to seal device or housing. The pressure on the surface of the pressing head should be appropriate to avoid pressing into the venting area
• After pressing, the dwell time should exceed 5 seconds
• Allow at least 24 hours dwell time before using or testing the vent
• The above steps are very important to ensure the vent sealed on the housing firmly

Press fit——suitable for manual installation

• Ensure the entire adhesive ring is attached to the surface of the device or housing
• Apply light finger pressure to the adhesive ring at least two circles to assure the seal to the device or housing, be carefull not touch the central part of the vent
• Allow at least 24 hours dwell time before using or testing the vent
• The above steps are very important to ensure the vent sealed on the housing firmly