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Old 03-19-2015, 12:20 PM   #1
Rojo
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Default Exhaust Manifold Paint

I have a new exhaust manifold coming from Bert's in couple days and am curious as to advice here as to what paint to use to maintain the cast iron appearance. I am aware of the VHT paint but have read horror stories of it curing to a golden bronze color....comments? Also, can't risk a homicide by curing the manifold in the wife's oven so would like to hear other's experiences of curing the paint while the manifold is on the car. Unfortunately my Tudor is not ready to run around on the road yet but I can start and run the engine in my shop....will this suffice for curing? I've read several older posts on this subject but hoping to get a more recent accounting of this project....
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Old 03-19-2015, 01:02 PM   #2
BRENT in 10-uh-C
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Default Re: Exhaust Manifold Paint

I use a product called Cast-Blast. The key to success is to preheat the manifold to burn of oils and to "expand the pores", then paint the manifold followed by heating it again in an oven to bake it.
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Old 03-19-2015, 01:04 PM   #3
Dan Partain
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Default Re: Exhaust Manifold Paint

If you search for Cast Blast you will find lots of good info on that product. Here's a photo of my manifold with CB.
-DAN
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Old 03-19-2015, 01:11 PM   #4
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Default Re: Exhaust Manifold Paint

Nice looking manifold. I am curious. What are you using as manifold nuts? they look like brass?
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Old 03-19-2015, 01:16 PM   #5
Rojo
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Wink Re: Exhaust Manifold Paint

Appreciate the replies.....will the Cast Blast cure on the car? Don't have access to a useable oven.....
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Old 03-19-2015, 01:30 PM   #6
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Default Re: Exhaust Manifold Paint

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Appreciate the replies.....will the Cast Blast cure on the car? Don't have access to a useable oven.....
Must be married...and wants to remain so!
Good Day!

Last edited by Dave in MN; 03-20-2015 at 10:01 AM.
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Old 03-19-2015, 01:37 PM   #7
BRENT in 10-uh-C
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Default Re: Exhaust Manifold Paint

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Appreciate the replies.....will the Cast Blast cure on the car? Don't have access to a useable oven.....
What do you grill hamburgers on?
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Old 03-19-2015, 01:38 PM   #8
Dan Partain
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Default Re: Exhaust Manifold Paint

Yes, those are brass, not original. When I bought the new manifolds I bought new studs and the brass nuts. I had no trouble with the original nuts, they are fine.
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Old 03-19-2015, 01:44 PM   #9
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Default Re: Exhaust Manifold Paint

I used Cast Blast and got a good job. My oven was a 4 cyl, 1929 engine both before and after the painting.
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Old 03-19-2015, 01:45 PM   #10
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Default Re: Exhaust Manifold Paint

I have a can of it in cast iron gray from the supplier in Loclport NY. Worked fine. Applied as instructed over two years ago. Manifold now still appears as it should, no peeling, burning or rust. Looks like a "clean cast iron manifold. Heated only in use on the car. No oven to use here either without danger to life and limb! Pictures attached. Good luck. Rancho
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Old 03-19-2015, 02:01 PM   #11
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Default Re: Exhaust Manifold Paint

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... can't risk a homicide by curing the manifold in the wife's oven ...
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Originally Posted by Rancho Deluxe View Post
... No oven to use here either without danger to life and limb...
I schedule use of the oven for when I'm "Home Alone". Never had a problem.
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Old 03-19-2015, 02:13 PM   #12
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Default Re: Exhaust Manifold Paint

Like Brent said, gas grill :-) Or heat lamp Or propane torch But no microwave ovens :-(
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Old 03-19-2015, 02:32 PM   #13
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Default Re: Exhaust Manifold Paint

Brent - I completely forgot about my gas grill...great idea! I don't use it for hamburgers, though...prefer charcoal...lol. The Cast Blast ad says it is good for only 250 deg...am I wrong? Appreciate all the replies....
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Old 03-19-2015, 02:41 PM   #14
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Default Re: Exhaust Manifold Paint

should have just bought the ceramic coated maniflod
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Old 03-20-2015, 07:38 AM   #15
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Default Re: Exhaust Manifold Paint

First, Carl G., THAT is the exact method I use. When she is away on a women's retreat or something, THAT is the week end I plan to bake parts in her oven! And I have also used the gas grill but you just have to be sure that you preheat the grill to a high temp first to burn off any grease that can impregnate the paint surface..... don't ask me how I know.

However, I have used this product in the past...

http://www.eastwood.com/calyx-manifo...Fc9ffgod13oAgg

If that link does not work, go to eastwood.com and put in "Calyx Manifold Coating 3 oz
Item #11171 Brand: Calyx"

I love this stuff and it never, ever burns off and you don't have to bake it.

Good luck,

JackD
'30 Tudor, Pittsburgh, PA
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Old 03-20-2015, 09:04 AM   #16
BILL WILLIAMSON
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Default Re: Exhaust Manifold Paint

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I schedule use of the oven for when I'm "Home Alone". Never had a problem.
Carl,
Wish Pat were still here to complain of STINK in the kitchen! Buster T. doesn't complain about ANYTHING!
Vermin's manifold has been COLD curing it's Cast-Blast, for nigh on to a YEAR now. A complete Cast-Blast engine would look neat, "YEP, IT'S A BRAND NEW ONE"!!
Bill W.
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Old 03-20-2015, 04:35 PM   #17
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Default Re: Exhaust Manifold Paint

I need to do something myself. Snyder's sells Calyx that is a dressing. Looks pretty impressive. Anyone used it?

http://calyxmanifold.co.uk/
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Old 03-20-2015, 04:58 PM   #18
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Default Re: Exhaust Manifold Paint

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I need to do something myself. Snyder's sells Calyx that is a dressing. Looks pretty impressive. Anyone used it?

http://calyxmanifold.co.uk/
The Calyx dressing NEVER dries. It's like putting smeary graphite shoe polish on the part. Someone gave me a tub of it a few years ago and it was (to me) disappointing because of the dirty smear whenever you touch the part, even months later.
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Old 03-20-2015, 06:05 PM   #19
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Default Re: Exhaust Manifold Paint

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The Calyx dressing NEVER dries. It's like putting smeary graphite shoe polish on the part. Someone gave me a tub of it a few years ago and it was (to me) disappointing because of the dirty smear whenever you touch the part, even months later.
Exactly what I was going to say. If you've ever used a bottle of anti-sieze and gotten any on your hands, this is nearly the same only a little thicker. Super messy stuff...
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Old 03-21-2015, 12:05 AM   #20
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Default Re: Exhaust Manifold Paint

Yep, I've got a 'bronze' manifold on my truck. courtesy of VHT.
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