Patching TPU innertube

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