Mikko Mäkipää
The 1st attempt to patch a TPU tube with cut pieces of a old TPU tube appears to be a success. Ignore the paper residues around the patch. :)
Now I need to figure out a robust way to cure them on the go and a fast adhesive. Also some way to carry IPA on the go.
Mar 10 at 3:40pmBuffer
Show threadwav3ydaveMar 10
@mkpaa what adhesive did you use for your test? my TPU patch kit says wait 30 mins, i've not had to fix one roadside yet.
Show threadMikko MäkipääMar 10
@wav3ydave Seamgrips. It was what I had readily avail. What do you have? Keeping pressure (and not moving) inside bag is my main concern.
Show threadMikko MäkipääMar 10
@wav3ydave It had been curing for a week until I returned to workshop.
Show threadwav3ydaveMar 10
@mkpaa I've got a tubolito kit, some kinda tiptop glue, Camplast
Show threadMikko MäkipääMar 10
@wav3ydave Right. That is what I am looking for next. I need some systematic way to test the curing. :)
Show threaddbxMar 10
@mkpaa
Do you use TPU tubes (Aerothan?) in Brevets etc.? How's your experience?
Show threadMikko MäkipääMar 10
@dbx Been using for 2 years now. Very mixed experience and always have butyl for spares for now. If I manage to figure out the patching process before summer I will go to #tcrno12 with 5/6 clik alu valve tpus only.
Show threaddbxMar 10

@mkpaa
Oh, kind of exciting! I'm still waiting for the right time to switch from butyl to TPU and skip tubeless completely.. 😅

#tcrno12

Show threadMikko MäkipääMar 10
@dbx They are for very different purpose in my opinion. Tpu is a light weight butyl that is harder to fix. Tubeless has the benefit of mostly fixing itself, but extraordinaly hard to fix if you run into any issues.
Show threaddbxMar 10
@mkpaa
Yes, you're right. I just didn't have the need for tubeless, as my last flat was ~2-3y ago. So I'm just looking for the light weight, but don't want to give the simplicity away.
Show threadMikko MäkipääMar 10
@dbx Yep. Butyl is very good in many ways and none of the options share all the good parts. :)
Show threaddbxMar 10
@mkpaa
😄👍