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What gray paint or coating for exhaust manifolds?
#1942078
10/31/15 12:37 PM
10/31/15 12:37 PM
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Joined: Apr 2012
Posts: 364 US
f2502011
OP
enthusiast
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OP
enthusiast
Joined: Apr 2012
Posts: 364
US
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1970 Challenger T/A. The exhaust manifolds were redone some time back with a gray coating of some kind. I screwed the finish up on one and need to redo them. Is there a good paint or coating I should use to do this?
1970 EK2 T/A 727
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Re: What gray paint or coating for exhaust manifolds?
[Re: f2502011]
#1942142
10/31/15 01:18 PM
10/31/15 01:18 PM
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Joined: Dec 2011
Posts: 892 MA
steve70
super stock
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super stock
Joined: Dec 2011
Posts: 892
MA
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I used the Eastwood's high temp aerosol spray coating on both my cars. I sandblasted the manifolds, wiped them down with acetone and put on 3 light coats as suggested in the directions. It's been about 4 years now and both cars look still look great. There's no sign of fading or rust.
1970 Challenger T/A 4 speed
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Re: What gray paint or coating for exhaust manifolds?
[Re: steve70]
#1942169
10/31/15 01:46 PM
10/31/15 01:46 PM
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Joined: Apr 2012
Posts: 364 US
f2502011
OP
enthusiast
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OP
enthusiast
Joined: Apr 2012
Posts: 364
US
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I used the Eastwood's high temp aerosol spray coating on both my cars. I sandblasted the manifolds, wiped them down with acetone and put on 3 light coats as suggested in the directions. It's been about 4 years now and both cars look still look great. There's no sign of fading or rust. Same as the one in the Eastwood link above? How many cans?
1970 EK2 T/A 727
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Re: What gray paint or coating for exhaust manifolds?
[Re: f2502011]
#1942221
10/31/15 02:52 PM
10/31/15 02:52 PM
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Joined: Dec 2011
Posts: 892 MA
steve70
super stock
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super stock
Joined: Dec 2011
Posts: 892
MA
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I used the Eastwood's high temp aerosol spray coating on both my cars. I sandblasted the manifolds, wiped them down with acetone and put on 3 light coats as suggested in the directions. It's been about 4 years now and both cars look still look great. There's no sign of fading or rust. Same as the one in the Eastwood link above? How many cans? Yes...the spray can. 1 can will be enough for a pair of manifolds. I believe 3 light coats is what they recommend.
Last edited by steve70; 10/31/15 02:53 PM.
1970 Challenger T/A 4 speed
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Re: What gray paint or coating for exhaust manifolds?
[Re: f2502011]
#1942920
11/01/15 12:47 PM
11/01/15 12:47 PM
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Joined: Oct 2003
Posts: 2,376 Banana Republic
FM3AAR
top fuel
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top fuel
Joined: Oct 2003
Posts: 2,376
Banana Republic
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I used the cast gray Bill Hirsch Hi-Temp exhaust manifold paint and was very happy with how they turned out. You can either brush it on or air gun it on, it's thin enough for that. In my case, I brushed it on and it came out nice. Per instructions, I baked them at 400 degrees for an hour, turned out nice. Just pick a time your wife will be away for the day, lol.
Last edited by FM3AAR; 11/01/15 12:48 PM.
“You’ll own nothing” — And “you’ll be happy about it.” K. Schwab
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Re: What gray paint or coating for exhaust manifolds?
[Re: f2502011]
#1943291
11/01/15 10:51 PM
11/01/15 10:51 PM
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htpd437
Unregistered
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htpd437
Unregistered
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I've used VHT Nu-cast high temp spray paint with good results.
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Re: What gray paint or coating for exhaust manifolds?
[Re: f2502011]
#1945125
11/04/15 06:16 PM
11/04/15 06:16 PM
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Joined: May 2004
Posts: 5,123 Warrenton, VA
RoadRunnerJD
master
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master
Joined: May 2004
Posts: 5,123
Warrenton, VA
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The coating looks very neat but the original manifolds were not gray but were painted with the engine color. The paint burnt off and they should be natural cast iron...which is not gray. I just sand blasted mine and left them natural. Over the last 10 years, there is almost no surface rust but I don't drive it.
Last edited by RoadRunnerJD; 11/04/15 06:16 PM.
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Re: What gray paint or coating for exhaust manifolds?
[Re: f2502011]
#1945223
11/04/15 08:41 PM
11/04/15 08:41 PM
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htpd437
Unregistered
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htpd437
Unregistered
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Thats why I used the Nu Cast paint. Looks like fresh cast iron metal.
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Re: What gray paint or coating for exhaust manifolds?
[Re: f2502011]
#1945809
11/05/15 07:08 PM
11/05/15 07:08 PM
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Joined: Jan 2003
Posts: 5,669 South Dakota
hotairballoonpilot
master
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master
Joined: Jan 2003
Posts: 5,669
South Dakota
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eastwoods. I burned the front half of my 72 duster up with the manifolds painted with that stuff. Everything was burnt but after pressure washing it all off they looked like i just had done them while everything else was fried!
corey
Contact Me about AMD Prices
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Re: What gray paint or coating for exhaust manifolds?
[Re: f2502011]
#1946476
11/06/15 06:40 PM
11/06/15 06:40 PM
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Joined: Jan 2003
Posts: 13,616 md
mopars4ever
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 13,616
md
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There was an article in Mopar Enthusiast where they coated the exhaust manifolds with Slip Plate which is a graphite dry film lubricant. I have never tried it but they said it looked like bare cast iron, protected the manifolds, and was easy to touch up if needed. I made my own with dry graphite and mineral spirits. I suggested it but nobody seemed to catch it. It works but it is messy. It looks much better then painted manifolds which I think looks crappy and fake looking. Slip Plate seems to be a better alternative fhough.
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Re: What gray paint or coating for exhaust manifolds?
[Re: f2502011]
#1947802
11/08/15 11:58 PM
11/08/15 11:58 PM
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Joined: Apr 2005
Posts: 1,528 Southeast PA
5wndwcpe
pro stock
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pro stock
Joined: Apr 2005
Posts: 1,528
Southeast PA
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I just did the Slip Plate application on my '57 a few weeks ago. It doesn't have much run time yet, but looks good and definitely does not look like paint.
1968 GTX hardtop 1968 Sport Satellite Convertible 383/4spd 1933 Plymouth coupe 2002 Ram 2500 oil burner 4x4 2015 Grand Cherokee 2013 Challenger 1957 Chrysler Saratoga
Man...I need a bigger freakin' garage.
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Re: What gray paint or coating for exhaust manifolds?
[Re: 5wndwcpe]
#1954554
11/19/15 10:41 PM
11/19/15 10:41 PM
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Joined: Mar 2010
Posts: 183 La Habra, CA
70440SIXPK
member
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member
Joined: Mar 2010
Posts: 183
La Habra, CA
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I opted to sandblast the manifolds and use vht high temp cast... Paint works great! As a precautionary measure I heated the manifolds with a torch to "burn" the paint in.. Bolted them to the engine and painted the entire engine so it would have the correct orange burnt look without the rust BS... Came out great!
1970 Challenger Factory V Code
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