On Mon Dec 23 13:30:21 2024 James wrote:

I got a snake bite puncture on one of my TPU innertubes. I haven't
bought one of the commercial patch kits, so I thought I would try a blob
of Aquaseal. Known for it's usefulness in repairing neoprene stuff and
more, I thought I would give it a go.

I tried to rough up the TPU innertube surface, but the sandpaper didn't
seem to have much if any effect. I cleaned it with a little Windex, and after that had dried and I had rubbed it some more with clean tissue
paper, I applied a drop of Aquaseal to each hole.

I have the stuff that takes about a day to solidify. I left the tube undisturbed for at least 12 hours, though I can't recall exactly how
long, before putting it back in the wheel and inflating.

This is on my gravel bike, with 40mm tyres that I inflate to 40-45psi.

The repair has held for a few hundred kilometers at least, and now I
have put different tyres on the bike, so I inspected the repairs.

The blobs of glue seem to have spread and flattened a bit, but otherwise
have appeared to bond well and not leaked.

That is nice to know but I have gotten so many flats on my TPU tubes that I quit using them. I got them EXTREMELY cheap but checking the weight of them against the very expensive TPU tubes, the weight is identical. My guess is a name brand inflates the
value of the same tube by 20 times.

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