Description
Seam Sealer for Tents 100 ml (StormSeal Seam Sealant) Stormsure
StormSeal is a water-based seam sealer designed to restore the waterproof performance of tents and other outdoor gear. The low-viscosity liquid penetrates stitching and needle holes, sealing leaks at their source and drying clear to create a flexible, durable and fully waterproof barrier.
The bottle is supplied with a wide brush, allowing the sealer to be applied evenly along the entire seam. StormSeal is ideal for treating factory seams, worn stitching or areas where waterproof coatings have degraded over time.
Why StormSeal?
- Seals leaking seams and needle holes
- Water-based and non-toxic
- VOC-free
- Dries clear and transparent
- Remains flexible – does not harden or crack
Suitable for
- Tent seams
- Bivy bags
- Waterproof clothing
- Other outdoor gear with non-watertight seams
Instructions for use
- Shake the bottle well before use.
- Remove the cap and pour the seam sealer into a suitable container (e.g. a cup or the package lid).
- Using the supplied brush, apply directly onto the seam stitching or hole.
- Allow the sealer to soak into the threads and needle holes, ensuring even coverage.
- Leave to dry for 15–25 minutes or until the surface is clear and dry.
- Once cured, StormSeal dries clear, flexible and fully waterproof.
Notes and warnings
- Allow treated seams to dry completely before exposing the item to rain or moisture.
- Always test on a small, inconspicuous area first to ensure colour compatibility.
- Water-based and non-toxic.
- Contains no VOCs (volatile organic compounds).
- Can be washed off with water before it has dried.
- Keep out of reach of children.
Technical specifications
- Volume: 100 ml
- Coverage: approx. 12 m of seam (approx. 2.5 cm / 1” wide seam)
- Drying time: approx. 15–25 minutes
- Material: water-based styrene-acrylic polymer dispersion
- Colour when dry: clear / transparent














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