Originally Posted by lhowemt
Hypalon is heavier.
This is a highly suspect, and mostly untrue statement. Most rafts of a given size are similar in weight, although some manufacturers are typically heavier (Star, Vanguard, Riken). Others vary significantly by model line (NRS). Often Polyurethane boats are the lightest for a given size.
Check out this comparison table:
WA :: Whitewater Small Raft Shopping Guide
Other highlights of Hypalon vs. PVC:
Hypalon rolls better and smaller, can be stored rolled
PVC boats should be stored inflated
PVC boats usually get stiffer
PVC boats often have harder floors that are better for standing on and fishing from
Older glued PVC boats often have seam failures and general glue failures around 10 years
Welded PVC boats hold up very well, newer glues used are also better than older glues for PVC
PVC boats seem to develop more pinhole leaks over time, especially if they are rolled and stored/transported rolled
Also worth noting, older boats with military valves and gum rubber chaffers are often considerably heavier than newer boats with Leafield valves and polyurethane chaffers.