How Seam Sealing tape works for waterproof jackets

When you inspect the inside of your waterproof jacket, you’ll notice that all seams connecting the fabric panels are carefully covered with seam-sealing tape. This specialised tape is essential for ensuring the garment remains fully waterproof, even in challenging weather conditions. Without it, even the most advanced waterproof fabric would struggle to keep you dry. Let’s explore why seam sealing tape is so vital and how it guarantees your jacket performs when it matters most.

Why do waterproof jackets need to be seam-sealed?

Stitching is unavoidable in garment construction, but it creates tiny punctures in the fabric. These holes, though small, allow water to seep through, especially in areas exposed to heavy rain, such as the shoulders. Even the best waterproof fabric cannot compensate for these vulnerabilities without the help of seam-sealing tape.

Waterproof seam-sealing tape covers these punctures, blocking water from entering through the seams. By sealing the seams, garment manufacturers ensure the jacket achieves its intended waterproof performance. This process is completed using specialised seam sealing machines that apply heat and pressure to bond the tape to the fabric securely.

What if my jacket was ‘welded’ together?

Some modern waterproof jackets are constructed using ultrasonic welding instead of traditional stitching. This technique bonds fabric panels by melting them together with soundwaves, creating a smooth and minimal seam. However, even with this advanced technology, seam-sealing tape remains indispensable.

Ultrasonic seams, though compact, still require reinforcement to prevent water entry and improve durability. Seam sealing tape waterproofs these seams and adds strength to ensure the jacket performs reliably, even in extreme conditions.

Are there different types of seam sealing tape?

Yes, there are several types of seam sealing tapes, each tailored to specific applications and garment requirements:

• Single-Layer Seam Sealing Tape: Lightweight and flexible, this tape is perfect for packable jackets designed for light outdoor activities.
• Double-Layer Seam Sealing Tape: Stronger and more durable, it suits garments used in moderate to harsh environments, such as hiking or skiing jackets.
• Triple-Layer Seam Sealing Tape: Built for heavy-duty use, this tape is ideal for extreme weather gear, offering maximum waterproofing and strength.

Additionally, seam-sealing tapes are available in fabric-backed versions. These are particularly useful for softshell jackets, where they enhance comfort and reduce chafing while maintaining waterproof protection.

Are all the seams of a waterproof jacket seam sealed?

Not all waterproof jackets have fully sealed seams. The level of seam sealing often depends on the jacket’s design and intended use:

• Fully Taped Seams: Found in heavy-duty jackets, this ensures every seam is sealed for maximum waterproofing. These jackets are perfect for extreme weather conditions.
• Critically Taped Seams: Common in lightweight and packable jackets, this method seals only the high-risk areas, such as the hood, shoulders, and neck. This keeps the jacket light while still offering essential waterproofing where it’s needed most.

Both methods are effective, but the choice depends on the wearer’s requirements and the jacket’s purpose.

What seam sealing tape is best for a waterproof jacket?

Choosing the best seam sealing tape for a waterproof jacket depends on several factors, including the garment’s construction, the type of fabric used, and its intended purpose. For lightweight, breathable jackets, single-layer seam sealing tape is often the best choice. For more durable jackets designed for intense outdoor activities, double or triple-layer tapes are recommended.

At Ardmel, we specialise in producing high-quality waterproof seam sealing tape for jackets and a wide range of other applications. From softshell clothing to heavy-duty protective gear, our tapes deliver exceptional performance tailored to your needs.

How to Seal Seams on Waterproof Fabric?

Sealing seams on waterproof fabric involves a precise process to ensure a strong, watertight bond:

• Prepare the Fabric: Clean the fabric to remove any dirt, oils, or debris that could affect the adhesion of the seam sealing tape.
• Choose the Right Tape: Select a seam sealing tape suitable for your fabric type and application. For instance, use waterproof seam sealing tape for clothing and heavy duty seam sealing tape for outdoor gear like tents.
• Apply Heat and Pressure: Using a seam sealing machine, apply heat and pressure to bond the tape to the fabric. The machine ensures the tape adheres securely, covering every puncture point.
• Inspect the Seams: After application, check the seams for any gaps or weak points and reapply the tape if necessary.

This process ensures the fabric remains waterproof and durable, even under challenging conditions.

Ardmel: Your Trusted Partner for Seam Sealing Solutions

Ardmel has decades of expertise in producing innovative seam sealing tapes. Our range includes options for waterproof seam sealing tape for jackets, tent seam sealing tape, and more, designed to meet the needs of diverse industries.

Through our bespoke division, we collaborate with clients to develop tailored solutions that deliver exceptional results. Whether you’re producing high-performance outdoor gear or protective clothing, our team of experts is here to support you.

Contact Us Today

If you’re looking for the best seam sealing tape solutions, Ardmel is your go-to partner. Explore our range of seam sealing tapes, designed for everything from jackets to tents, and ensure your products achieve the highest standards of waterproofing and durability.

Get in touch with our team today and discover how we can help you achieve your production goals with cutting-edge seam sealing technology.