There are many different reasons why your exhaust may begin to blow, and you’ll certainly know about it with a loud booming noise every time you rev or change gear. An exhaust bandage is called a bandage for a reason, and that’s because it simply covers the ‘wound’ and it’s certainly not a permanent fix.
If your exhaust only has a small hole then the exhaust bandage will work for a whole lot longer, however, if you have a big hole it could be just weeks until you finally reach the verdict that you’re going to need a new exhaust part or a new exhaust unit all together.
The bandages disintegrate relatively quickly and you should never choose to rely on an exhaust bandage. Instead you should focus on getting the exhaust repaired by a professional fast, but these bandages can be useful if you’re travelling away from home and you need a quick fix for a while.