Ronald,
Excellent post plainly in agreement for most of the article. The issue with "Hypalon" is that it's a registered trade name by Dupont. There are other CSM fabricators worldwide, Pennel Orca to name one are responsible for the most inflatable newer boats being made that used to be made with Hypalon fabric. Hypalon and CSM are just the thin upper coat of the whole fabric which is sandwiched against middle and lower fabrics to form a flexible one piece fabric.
Idiotic boaters hallucinates that Hypalon is the material Rambo's war sibs are made of and will hold bullets, knives, harpoons, fish spines, even rat bites, which is not so in real life. Old boates use to satanize with true facts that old PVC didin't last that compared to hypalon sibs. Chemistry has improved tremendously so does newer PVC fabrics which outlasts old ones. Not all fabrics last same, you have Chinese, Korean, German fabrics. Add that all glues are not same, high quality costs more and lasts much loooonger. Combine high quality glues with high quality German PCV fabrics and will have a sib for years to come.
The article mentions one simple word that most inflatable boaters don't take into account which is "inflation" and will agree that most boaters like boating on marshmellow like inflated tubes and keels which on the not that long run will end ungluing seams, transoms and all what's glued on top tubes. What's been air topped in the morning specially with sun, will not remain same in the afternoon, so carry your feet or hand pump and gauge along and pump it up, pump it up baby for a comfy afternoon ride.
BTW, are you assuming or know that CSM sibs are made with PVC floors ? Why would it be so ? You need a special glue to glue PVC over CSM and viceverse.
Happy Boating
