I put JB Weld on my exhaust manifold and it lasted about 15 minutes before it was totally burned off! Also smells like crap when burning. I was just trying it as it is rated to over 600 degrees but apparantly not much past that. I thought it would last a little longer but was way wrong. There are other exhaust type fix it materials out there that are rated much higher.

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~Jamie
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2003 Pewter C230K SC C1, C4, C5, C7, heated seats, CD Changer, and 6 Speed. ContiExtremes on the C7's.

1986 190E 2.3 Black, Auto, Mods to come soon.....