Did my TR6 exhaust (from the exit of the header on back) with POR-15 a few
years ago and it still looks like new. Their stuff doesn't come in spray
cans so I went to a local auto body supply place and picked up a little jar
that has a cap with a replaceable aerosol cartridge. If I recall
correctly, it took two cartridges to put two coats of POR-15 on my dual
exhaust.
The only thing to watch out for with POR-15 is that it won't stick to a
surface that is too smooth. Any mechanical method that you use to remove
your old paint, such as sandblasting or using a wire brush attachment on a
drill or grinder, should leave an acceptable surface. The last few inches
of my exhaust tips coming out of the mufflers were chromed and I painted a
half inch or so of the chrome without roughing it up. The POR-15 flaked
off there. I remember someone else saying one time that they painted the
smooth metal surface of their inner trunk floor and the POR-15 peeled off
in one big sheet.
All in all, the stuff is amazing. And I believe gray and/or silver is an
option, though I did mine in black. Their web site is:
http://www.por15.com/
If you were talking about the exhaust manifold, I had my header Jet-Hot
coated. It's a lot more expensive than painting, but on the other hand my
header still looks like new also.
http://www.jet-hot.com/
Hope this helps.
Mike Frerichs
John Lambert wrote:
> I've been looking for a reliable high temp. paint for an exhaust, if
> possible in a can, as I have found that one standard size aerosol
> can will provide two coats coverage to my muffler system. I found
> this out by painting with 1200 and 1500 degree rated paints which
> both failed me and flaked off during the first drive test. I'm not up
> to stripping this exhaust down to bare metal too many times more,
> but the only promising product I've found so far is sold by the gallon,
> and at $100 a pop. Anyone know of an economical product out there
> that will actually endure real world exhaust temps? I've called
> everywhere in town, and all I get is oblivion on the other end of the
> line.
> Color options in grey or silver would be real nice too. :)
>
> --John in Baton Rouge
> 64 Sprite Mark II
> 68 Karman Ghia
> 71 Porsche 914
> 88 Extended Ford Van (Big Gray)
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