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The roll doesn't cover as much as you would think.( one roll to one hole) the color is orange which sticks out like a sore thumb on exhaust pipe. But all aside, yes it works, hardens up and is easy to use
Have tried this product on a leaking exhaust pipe on my diesel car and even thought i have done everything as shown in the manual the exhaust leak was not fixed. I do believe it would be strong enough to re-attach a broken muffler or an exhaust pipe, but it does not create an air-tight seal. Atleast not in my case
It was very easy to use and I should have known then that it won't last.
I just had to wet this and apply it to the gap. I had used an extension pipe where the old tail gate broke off. I put it over the crack and applied it on the gap. I followed all the directions and I let it harden more than the recommended hours. It worked really well for few days and then one day it suddenly just broke off. This will not work if you have big gaps or just no pipe between the break. This might work in minor cracks and joints that overlaps.