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Quality Vapor Membranes

Protecting your strong equipment requires even stronger, more secure equipment. That’s why, when you need vapor membranes for your application, it’s important not to choose just any product. You need a vapor barrier membrane that’s capable of withstanding pressure for prolonged periods of time while maintaining its performance. That’s where Seal and Design comes in.

Seal and Design provides a wide range of vapor membranes for different applications so you can find every type of product you need all in one place. Whether you need an automotive vapor membrane to protect your vehicle from dust, water, and debris, or you need diagnostic venting for your solar panel systems, we’ve got you covered.
We manufacture hydrophilic ePTFE venting membrane materials, hydrophobic materials, and oleophobic materials so you can keep contaminants from entering your enclosure. Protect your outdoor equipment, medical equipment, automotive equipment, and more. We have the vapor membranes you need to get the job done right.


Contact Seal and Design today to learn more about our different vapor membranes available. Our professional and experienced team can help walk you through which product may be best suited for your application.

 Vapor Membranes have a variety of applications. A Seal & Design sales representative will be happy to help you find the best product for your application.

Why Choose Seal and Design?

Seal and Design has over 30 years of experience in the manufacturing industry creating gaskets, seals, molded products, and vapor membranes. We understand what it takes to create a high-quality product that not only works but works well for years.
When you need a vapor barrier membrane, no matter the application, you can feel confident knowing that you’re getting the best deal when you work with us. Seal and Design doesn’t sacrifice quality and each of our vapor control membranes are reliable and affordable. Contact Seal and Design for more information about our vapor membranes today. We’ll be happy to answer any questions you may have.


Product Type





5 mil

Olephobic ePTFE Membrane Laminate 
Function Layer: PTFE 
Backer Material: Polyamide


6-10 mil

Hydrophobic ePTFE Membrane Laminate 
Function Layer: PTFE 
Backer Material: Polypropylene


6-10 mil

Olephobic ePTFE Membrane Laminate 
Function Layer: Olephobic ePTFE 
Backer Material: Polypropylene


3-7 mil

Olephobic ePTFE Membrane Laminate 
Function Layer: PTFE 
Backer Material: Polyester


7-9 mil

ePTFE Membrane Laminate 
Function Layer: PTFE 
Backer Material: Nonwoven Polyester


6-15 mil

Olephobic ePTFE Membrane Laminate 
Function Layer: PTFE 
Backer Material: Polyester


Automotive Application Fact Sheet

Different aspects of automotive equipment are exposed to environmental changes such as temperature, water, dirt, debris, and even contact with automotive fluids.

Automotive vapor membranes provide reliable protection from debris, water, dust, and automotive fluids, while allowing for rapid equalization of pressure.

Reliable venting materials can reduce manufacturing costs and the complexity of component design by lessening the need heavier seals, gaskets, and housings.

Automotive vapor membranes can be found in automotive sensors, control units, motors, exterior lighting, powertrain, and power steering systems.


Harsh environmental conditions can cause a decrease in performance and lifespan of sensitive electronics.

Telecommunications systems, solar energy systems, heavy duty equipment, and other outdoor applications contain electrical equipment that are exposed to environmental changes.

Proper ventilation provides protection from contaminants and liquids and promotes pressure equalization through air flow, effectively extending the life and performance of other seals.


Many cameras and portable electronics contain hydrophobic barriers to protect against liquids, dust, and pressure changes from everyday use.

Hydrophobic immersion vents protect sensitive electronics against moisture and allow for reliable protection of underwater cameras and devices.

Seal & Design is an industry leader offering a wide variety of seals and sealing products. Our quality control methods for material and manufacturing processes ensure that all seals leaving our factories are in a condition capable of giving a long and reliable service life.

Explore our seal offerings below:


Medical personnel and patients rely heavily on medical equipment to perform safely and reliably. Microporous membranes are designed for high levels of gas permeability to allow for sufficient airflow and pressure equalization in medical devices.

Medical liquids can contain gases that may present a hazard to the patient or affect the operation of the device if not vented properly. IV lines, for example, use venting membranes to dissipate gas bubbles while retaining liquids under pressure.


Environmental changes can cause increased strain on the seals of sensitive outdoor equipment.

Outdoor lighting equipment is exposed to varying temperatures, moisture, and weather changes that can quickly decrease their performance, reliability, and lifespan.

Proper ventilation effectively blocks contaminants including dirt and dust, while allowing air flow to equal pressure, which will increase the service life of the equipment.


Serious consequences can result from containers with active chemicals and formulations that are not properly ventilated.

These packages run the risk of bloating or collapsing, ruined labels, and leakage leading to costly cleanups and dissatisfied customers.

When it comes to agricultural products, and industrial and household chemicals and cleaners, leaks and ruptures could pose a severe risk to the users and the environment.

Proper ventilation allows air and gas molecules to pass, equalizing pressure, while preventing leakage of dangerous liquids.


Sensors are becoming smaller and more versatile allowing use in applications that were not previously possible.

Exposure to harsh environments including high-pressure, drastically changing temperatures, hazardous chemicals and gases, and contaminants can decrease the accuracy and functionality of a sensor.

Sensor Protection membranes provide an effective barrier against these conditions and can eliminate the effects of fluctuating temperatures and pressure differentials.