Well, as a material it is good, but of course it needs gloves and preparation to apply it (sanding with sandpaper and cleaning well with water), but it will be good once you apply it to heat it with a heat gun, not with the exhaust directly because the pressure of the combustion gases will cause bubbles. When it sets and doesn't come off, it holds up just fine, but a heat gun helps, otherwise it peels relatively easily. Maybe it's because I used it on octopus and not on the back where it has lower temperatures.