Seam Sealing Integration with Membrane Garments
topic
Seam sealing for waterproof breathable garments applies hot melt seam tape over sewn seams using heated roller or hot air applicators that bond the thermoplastic tape to the garment interior membrane surface, blocking the needle holes and seam thread paths that would otherwise provide water ingress channels despite the waterproof laminate fabric, with seam seal tape adhesion and coverage completeness being verified by hydrostatic pressure testing of the sealed seam against the same standard as the fabric.
Role
Completes the waterproofing of membrane laminate garments by sealing the seam penetrations that would compromise the waterproof performance of the fabric itself, with seam sealing quality being as important as fabric performance for overall garment waterproofness, and seam seal tape selection requiring compatibility with the face fabric and membrane materials in both adhesion chemistry and thermal bonding conditions that must not damage the membrane during sealing.