by Ae92typeX » Fri Jan 12, 2007 6:23 pm
Hi,
as above, Ive used hammerite on many blocks in the past with no problems. Ive also used it with success on rear sections of exhausts (mufflers and pipes), but would not suggest one use it on extractors/exhaust manifolds for example.
The key on the block was getting it spottless, as any oil traces stuff it up. I usually then apply a thinner 'tack' coat, followed by a normal, not heavy,coat about about 15-20min's later.
Ive used both hammered finish and smooth finish. On my clubman I used smooth green. Two years later, a very small amount came away where I had a small coolant leak, but if it was dry, it would have been fine.
Ive used hammered black on several blocks, which wereok when I sold them. Also have used iton the aw11, but I only put that fresh engine in a year ago. Its still good, but hardly a time tester.
hope thats a help