Salt water
Packrafts made of TPU nylon are saltwater-resistant. After trips on the sea you should still rinse them with fresh water.
The Packrafting Store recommends rinsing the boat with clean water after use in salt water and wiping it dry. That way no crust forms between tube and floor, and the valves stay free of salt.
Matching trips of ours
Sources and further reading
Research as of 13 Nov 2026. We have marked manufacturer information as such.