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From: James <james.e.steward@gmail.com>
Newsgroups: rec.bicycles.tech
Subject: Patching TPU innertube
Date: Mon, 23 Dec 2024 13:30:21 +1100
Organization: A noiseless patient Spider
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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.

-- 
JS