Any long term TPU tube users on here

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Webbo2

Active Member
One thing I'd like to ask for confirmation.

Has anyone attempted patching up TPU with bog standard electrical / insulation tape? I think it was a post on reddit that "swore" by it, but I couldn't tell if that post was credible or just plain BS.

Anyone tried and tested the electrical tape patch hack on TPU tubes?
Yes I stuck some on and inflated the tube which kept inflated for some time. However inflating TPU not inside a tyre distorts their shape and they no longer will fit in a tyre. P Blakney off BR says he has successfully repaired a tube and it’s stayed repaire.
 

VinSumRox

Well-Known Member
Location
Scottish Borders
I bought a tubolito repair kit which is basically a suitable glue alcohol wipes ans some patches of the same tpu material as the tube. I have successfully patched Tubolito several times and the patches seem pretty robust.
I do feel they are more resistant to punctures and will sometimes have a very tiny hole which is hard to spot and makes it seem like that are permeable!
I like the tiny size of them to carry as spares.
I wasn't impressed with the cheap Ridenow ones as they are very thin and easily damaged when fitting them.
 

accountdeleted

New Member
Thanks @Webbo2, very useful feedback. I recognise P Blakney from BR, I wonder if he's migrated to here, too (I'm a recent BR refugee).

I am aware of permanent distortion of TPU tube when inflated on its own without being in situ (low yield point?). Just wanted to know if electrical tape repair hack is worth a try at a pinch but I'll get a purpose repair kit just in case.

I still have quite a few butyl tubes and loads of Rema patches and vulcanising glue so I'm not a full TPU convert yet.

So, given the TOU yield point, is it wise to get a TPU tube that's one size bigger than intended? For example, for a 28c tire get a TPU tube that's sized for 30-35c instead of a TPU sized for 23-28c (or even up to 30c)? Just curious.
 
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