Here is everything you need to know about bicycle inner tube patches. The Two Types of Patches
Before putting the tube back in, run your fingers carefully along the inside of your tire. If the thorn, glass, or wire that caused the flat is still stuck in the tire, it will pop your newly patched tube instantly. When to Toss the Tube Bicycle Inner Tube Patches
Peel the foil backing off the patch (try not to touch the sticky side) and press it firmly over the hole. Use your thumb to apply heavy pressure from the center outward to work out any air bubbles. Here is everything you need to know about