Review on VeloChampion Glueless Self-Adhesive Patches Kit: Ultra-Lightweight and Effective for Bike Puncture Repair - 6 or 10 Pack by Jeffrey Crutcher

We drove 100 km and about halfway I had a flat tire. My friend is an old guy from the bike shop, so he took my tire and tube off and was already pumping up the hole while I rummaged through my backpack for a repair kit. I show him the VeloChamp repair kit and he tells me never to use self-adhesive patch kits. He had had bad experiences with them in his time. He pulls out his patch kit, which has a tube of glue in it, and it's already dry. We ended up using two VeloChamp patches to close both holes and everything works fine. No issues with this trip or the next two I've been on since. He also changed his mind about self-adhesive patches. In short: it worked for me, so it probably will work for you too. Just make sure you clean/sand that area properly.