Materials and technology

Welded seam

Also: welded seam, HF welding

On TPU packrafts the fabric panels are usually welded rather than sewn or glued. That saves weight and stays airtight.

Anfibio writes about the Revo: all seams are welded, the tube seams are additionally stitched, and no glued joints are used at all. Mekong welds using high-frequency technology without any adhesive. Some seams, for example on the spray deck, are additionally sealed with tape. Tiny air channels can form there, which Alpacka seals with a dab of Aquaseal.

Sources and further reading

• Packrafting Store: Anfibio Revo CL
• Mekong Packraft (manufacturer)
• Alpacka Raft: Repair Guide (English)

Research as of 13 Nov 2026. We have marked manufacturer information as such.