best high temp coating option for turbo manifold?
#1
best high temp coating option for turbo manifold?
I'm going to get my manifold and O2 housing high temp coated and was wondering what experience others had with the different companies.
The only ones that I'm really considering right now are Jet Hot and Swain. If I do Jet Hot, I'd go with the 2000 coating in black which I've used for other non-turbo exhaust parts in the past. I've had good luck with Jet Hot in the past and their quoted price (which they will send you before you send in the part) includes stripping the old rust off.
I know that Swain coating is thicker and better, but I'm not sure about the cost and it seems that their website suggests extra charges for surface preparation. I'm also not a fan of the "white lightening" appearance, though maybe they can do different colors. Anyone use them before?
Any advice welcome.
Do I need to worry about coating on the flange surfaces causing sealing issues? Would that need to be stripped off before installing parts.
The only ones that I'm really considering right now are Jet Hot and Swain. If I do Jet Hot, I'd go with the 2000 coating in black which I've used for other non-turbo exhaust parts in the past. I've had good luck with Jet Hot in the past and their quoted price (which they will send you before you send in the part) includes stripping the old rust off.
I know that Swain coating is thicker and better, but I'm not sure about the cost and it seems that their website suggests extra charges for surface preparation. I'm also not a fan of the "white lightening" appearance, though maybe they can do different colors. Anyone use them before?
Any advice welcome.
Do I need to worry about coating on the flange surfaces causing sealing issues? Would that need to be stripped off before installing parts.
#2
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Rich,
You might also want to give HPC a call. I have not contacted them nor Swain Tech yet but I read a rumor that Swain doesn't coat the inside of the header.
http://www.hpcoatings.com/hipercoat_extreme.htm
The HiPerCoat Extreme comes in black & gray and can handle temperatures up to 2000degF.
Steve
You might also want to give HPC a call. I have not contacted them nor Swain Tech yet but I read a rumor that Swain doesn't coat the inside of the header.
http://www.hpcoatings.com/hipercoat_extreme.htm
The HiPerCoat Extreme comes in black & gray and can handle temperatures up to 2000degF.
Steve
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I have the Swain Tech coating (http://www.swaintech.com/header.html), and I can tell you that I'm done with Jet-Hot and other cosmetic high-temp paint. This coating is pure function and is absolutely not paint.
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Does Swain Tech coat the inside of the header? I'll call them as soon I get my parts in but if you can save me the hassle...
Originally Posted by Ted B
I have the Swain Tech coating (http://www.swaintech.com/header.html), and I can tell you that I'm done with Jet-Hot and other cosmetic high-temp paint. This coating is pure function and is absolutely not paint.
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you can checkout www.performancecoatings.com as well, they just finished my DNP manifold with 2000 degree...well give review when I get it tomorrow, and did it quickly 3 days...inside & out.
#7
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Performance Coatings is a film (paint).
The Swain Tech coating is a textured layer that consists of an agglomerate of 'gillions' of tiny ceramic fragments. The surface is not smooth (it isn't a film or paint), and therefore it wouldn't be used (or required) to coat the inside of the manifold.
The Swain Tech coating is a textured layer that consists of an agglomerate of 'gillions' of tiny ceramic fragments. The surface is not smooth (it isn't a film or paint), and therefore it wouldn't be used (or required) to coat the inside of the manifold.
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#8
Originally Posted by Ted B
The surface is not smooth (it isn't a film or paint), and therefore it wouldn't be used (or required) to coat the inside of the manifold.
#10
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Increasing heat retention is accomplished by preventing the manifold from radiating heat to the outside air.
Increasing heat retention also increases the rate of corrosion. Not much can be done about this other than using a more durable material if corrosion proves to be an issue.
Increasing heat retention also increases the rate of corrosion. Not much can be done about this other than using a more durable material if corrosion proves to be an issue.
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Maybe I should have elaborated. My intention was to coat both the inside and outside of the header. I wanted to coat the inside to reduce heat transfer from the exhaust gases to the header and then the exterior coating to reduce heat emissions in the engine compartment.
#12
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In theory, increasing heat rejection between the exhaust gases and the manifold would accomplish what you're after. My opinion, which is derived from my experiences with thin film coatings, is they are not anywhere as effective as advertised. I should have kept photos of my tubular manifolds eventually rusting through their performance coatings, but I didn't...and this was with a N/A application.
#13
http://users2.ev1.net/~subaru/evo_web/evo_exhaust.htm
check this out ! this is what i want to do to my manifold and o2....
check this out ! this is what i want to do to my manifold and o2....
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If the coating worked as advertised, the humidity wouldn't be a factor simply because it should not penetrate the coating.
It's very much overrated hype that doesn't withstand the 'acid test' IMO, which is why I'm through spending money on thin film coatings that seem to amount to little more than high-temp paint. Just my $.02.
It's very much overrated hype that doesn't withstand the 'acid test' IMO, which is why I'm through spending money on thin film coatings that seem to amount to little more than high-temp paint. Just my $.02.