Seam sealing
Seam sealing is covering the stitch holes along a tent's seams with waterproof tape or a liquid sealant, so water cannot pass through the needle holes. It can be done at the factory, where the seams are taped, or later by the owner with a sealant the maker recommends.
Where you'll see it
You will see seam sealing in tent specifications, often as taped seams, or in care instructions that mention reapplying sealant. Check which seams the maker describes as sealed, because not every seam on a tent is treated in the same way. Seam tape and sealant wear over time, so the maker's guidance may cover checking and reapplying them.
What to check
- Which seams the maker says are taped or sealed, such as the flysheet and the floor.
- Whether the seam work is done at the factory or needs doing by the owner.
- The sealant the maker recommends, and how the maker says to apply it.
- Whether the maker's care advice says how often to check the seams.
- Whether the maker warns against using other products, which can damage the fabric.
Related terms
- Hydrostatic head: a fabric measure, which is separate from how the seams are finished.
- Flysheet: the outer layer, where many of the seams are found.
- Groundsheet: the floor layer, which has its own seams.
Read more: drying and storing a tent and tent types explained.