Can You JB Weld A Cracked Manifold?

Can You JB Weld A Cracked Manifold? Can you JB weld a cracked manifold? JB Weld ExtremeHeat is perfect for making repairs on all manner of high-heat parts, including exhaust manifolds, mufflers, catalytic converters, exhaust pipes, engine blocks, fireplaces, smokers/fireboxes, and many more crack-prone items. Will JB Weld hold on exhaust manifold? JB Weld ExtremeHeat