I own quite a few cast iron decorative pieces that were all broken in one place or another

The grey color of the JB Weld blended in nicely with the metal die cast chassis and the epoxy has held up nicely.

About 8 years ago, I had a crack in a cast iron oil cooler housing on a heavy truck I own

I used this to repair a broken pot metal chassis of a Hot Wheels monster truck die cast car

I used this on a cracked 4" cast iron waste pipe.

Solid as when it was new

I then checked out the ABS tone ring and it appeared to be on the car very solidly, as solid as if it had never broken.

great as always

any outer coating(s).)I could tell you about all of my applications of this, but you would get bored fast as it would be a really long list

good as ever

Good as always

That when I cracked the block on my Model T, JB Weld fixed it

To join a 1/8" steel rod, to another 1/8" steel rod, forming a "T" (a common and easy welding job, almost impossible with just JB-Weld), cut two