A few weeks ago while we were on the beach and just had a swim, I discovered that my back tire was flat. As usual I always forget to bring patches with me in small trips so Filippos was my only hope (he always carries way more than the essentials ). He actually had two patch kits and one of them unopened. But both with dried out glue, unfortunately 😦 He also had some electrical tape though and we decided to try it out as an emergency patch. To our surprise, the tube held up just fine, even after some rigorous pumping! The next morning it was also perfectly fine for my errands ride! Only after 3 days, it started to lose some air.
After this experience, I always carry some tape in my saddle bag. It never gets dried like the glue, people don’t usually steal it and it can last for a lifetime of punctures!