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Old 21 October 2019, 19:53   #1
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TPU vs Hypalon?

Ive always considered Hypalon the gold standard.

But Ive been reading a few sites now claiming TPU is better. Holds air better (that seems to be a fair claim given welding over glue), is more abrasion resistant (not sure about that). And I have no idea on material longevitiy.


Any thoughts on someone in the know on TPU?
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Old 22 October 2019, 09:48   #2
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I had some dealings with a polyurethane boat at our sailing club. The club had 4 ribcrafts and 1xs boat the xs being polyurethane. At about 5 years old the glued seams on the xs began to fail tapes lifting and attachments coming off. At 7yo one of the chambers failed completely in discussion with xs the failure was attributed to uv damage to the glue as the boat lived outside uncovered permanently. Xs were very decent about it and retubed the boat at a fraction of the usual cost which we thought very fair considering the boat was well outside its warranty. The guys at XS assured us that due to changes in the material that the glue issues were no longer a problem & the main body of the tubes were largely heat welded. I did see some at the factory & they do look better when heat welded, looking more like 1 piece rather than jointed pieces. The retube was offered in pu or hypalon but it was decided to go with hypalon.
Now whilst the club had an issue with the pu boat when you sat the xs with its old tubes next to the similar age ribcrafts the xs was far tidier& had much less abrasion damage & hadn't faded like the ribcrafts. All the ribcrafts got the tops of their tubes clad in wear patches to preserve them from further deterioration.
While I personally like hypalon because its so easy to work with if you need to repair it or add accessories I think the pu does stand up to use better & assuming the glue issues are no longer a problem I can see there being more pu boats sold especialy being welded seams
I dont think pu will take over but its definitely going to give hypalon a run for its money
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Old 22 October 2019, 10:03   #3
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This subject has been done to death on here....I suggest you do a search.
If you're too lazey or disinclined...
....Hyperlon!
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Old 22 October 2019, 12:20   #4
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Quote:
Originally Posted by Maximus View Post
This subject has been done to death on here....I suggest you do a search.
If you're too lazey or disinclined...
....Hyperlon!
I think you'll find most comparisons are between pvc & hypalon, polyurethane is significantly different to pvc and much closer in terms of cost and durability.
Materials are constantly evolving therefore fresh discussion is worth the forum space.
You dont have to read if you dont want to, fresh discussion about changing products is exactly whats needed

Or we could continue reading about old seagulls when looking for info on a new engine
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