Videre non videri
Join Date: Sep 2004
Location: Gothenburg, Sweden
Posts: 3,208
Bikes: 1 road bike (simple, light), 1 TT bike (could be more aero, could be lighter), 1 all-weather commuter and winter bike, 1 Monark 828E ergometer indoor bike
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My question has been answered. The conclusion seems to be that it won't damage the rubber. That is all I asked and all I need. None of the other substances are known to me, and very likely not available here.
This is NOT to patch the tube, but to fill the gaping hole (5x1.5 mm) left by the piece of glass I removed.