Topic: Powdercoating flanges

[thelowmax]

Anybody ever powder coat exhaust flanges?

[Powderman]

What are your concerns? What color do you want them?

[Dimitri13]

Can powercoat withstand direct exhaust temps? Personally, I'd go with ceramic coating.

[Patrick]

Since powdercoat is melted on at a much lower temp than an exhaust produces (350-400 degrees F), I think it unlikely it could take the heat without melting every time you run the bike.

[Tim2005]

I've had them done & it worked fine- didn't melt at all. Surprised me a bit tbh.

[Powderman]

Since powdercoat is melted on at a much lower temp than an exhaust produces (350-400 degrees F), I think it unlikely it could take the heat without melting every time you run the bike.

Where did you get that info from ? Powder is cured at 400*f and once cured can withstand spikes of 100* over cure temp (500*). I'm pretty sure that on an IL Honda the collars don't exceed 500*during normal use. If you want them black ceramic coating would be a wise choice for piece of mind.
Now I have measured H-D V-Twins that easily exceed 750* at the exhaust port, most V-Twins seem to run higher exhaust temps than a multi cylinder JDM bike.

[greenjeans]

Any coatings that resemble chrome ?

[thelowmax]

Or clear?

[Dimitri13]

I had my engine covers done in powdercoat "chrome." Just a silver base with glossy topcoat. Not sure about other options though.

[RSchaefer]

I had my engine covers done in powdercoat "chrome." Just a silver base with glossy topcoat. Not sure about other options though.

Did you do the valve cover as well?  Any issues if so?

[Rookster]

I did my flanges in duplicolor clear engine enamel.  They turned a nice shade of dark purple and bronze.  However hot they get it was too much for the duplicolor.  You can see the bronze color on the spigot.



Scott

[Dimitri13]

I had my engine covers done in powdercoat "chrome." Just a silver base with glossy topcoat. Not sure about other options though.

Did you do the valve cover as well?  Any issues if so?

I did the valve cover in a different color. I haven't run the engine yet, so I can't say for certain. But there shouldn't be any issues if the powder was done properly.

[RSchaefer]

I did all of my covers in clear powder and the valve covers are starting to show spider veins throughout, must be the large areas of clear powder?

[Powderman]

I did all of my covers in clear powder and the valve covers are starting to show spider veins throughout, must be the large areas of clear powder?

Powder doesn't know how large of an area it is on. Spider cracking is usually an indication of under cure.

[SOHC4 Cafe Racer Fan]

Any coatings that resemble chrome ?

Ceramic powdercoating in chrome.

[Powderman]

Any coatings that resemble chrome ?

Ceramic powdercoating in chrome.

Short answer is NO, there are no powders that resemble chrome in the least.
While chrome powders look pretty reflective on it's own it must be clear coated to avoid oxidation of the surface. When clearing it, it will lose about 20% of it's POP and shine.
Ceramic coating is in no way related to powder coating, one is powder, the other is a liquid spray on product. Cermachrome is a chrome ceramic that after curing needs to be either hand polished with steel wool or run through an expensive tumbler filled will expensive media. On these exhaust collars I don't see either method working as the media is too large to get in between the fins.

[MRieck]

 Jet Hot wouldn't work on those?? I have used them for several exhaust systems and the get all round the flange area etc.

[Powderman]

Jet Hot wouldn't work on those?? I have used them for several exhaust systems and the get all round the flange area etc.

This didn't make sense. can you correct it so it does?

[MRieck]

Jet Hot wouldn't work on those?? I have used them for several exhaust systems and the get all round the flange area etc.

This didn't make sense. can you correct it so it does?

 
 I haven't tried the polished silver on 750 or 550 exhaust flanges but Hindle exhaust systems ( I have coated 3 of them) use a separate spigot that bolts to the head. They have many nooks etc and they polished up fine from Jet Hot.
 I saw "resembles chrome" but is a spray powder type of coating. I don't how close they want it to be especially with that crap the Japanese called chrome from the 70"s. I hope that makes sense.
 With a name like "powderman" I have to guess you are in the business and know everything about it.
 

[Powderman]

Jet Hot wouldn't work on those?? I have used them for several exhaust systems and the get all round the flange area etc.

This didn't make sense. can you correct it so it does?

 
 I haven't tried the polished silver on 750 or 550 exhaust flanges but Hindle exhaust systems ( I have coated 3 of them) use a separate spigot that bolts to the head. They have many nooks etc and they polished up fine from Jet Hot.
 I saw "resembles chrome" but is a spray powder type of coating. I don't how close they want it to be especially with that crap the Japanese called chrome from the 70"s. I hope that makes sense.
 With a name like "powderman" I have to guess you are in the business and know everything about it.
 

You would be correct on my profession.
Your post said " Jet Hot wouldn't work on those?? I have used them for several exhaust systems and the get all round the flange area etc."
I assume you meant "THEY get all round the flange area" If so, your post makes no sense. The first sentence says it won't work. The second sentence implies that they did a complete job.

[MRieck]

I'll work on my syntax.

[Powderman]

I'll work on my syntax.

How about starting right now? Does Jet Hot work or doesn't it?

[MRieck]

Jet Hot wouldn't work on those?? I have used them for several exhaust systems and the get all round the flange area etc.

This didn't make sense. can you correct it so it does?

 
 I haven't tried the polished silver on 750 or 550 exhaust flanges but Hindle exhaust systems ( I have coated 3 of them) use a separate spigot that bolts to the head. They have many nooks etc and they polished up fine from Jet Hot.
 I saw "resembles chrome" but is a spray powder type of coating. I don't how close they want it to be especially with that crap the Japanese called chrome from the 70"s. I hope that makes sense.
 With a name like "powderman" I have to guess you are in the business and know everything about it.
 

You would be correct on my profession.
Your post said " Jet Hot wouldn't work on those?? I have used them for several exhaust systems and the get all round the flange area etc."
I assume you meant "THEY get all round the flange area" If so, your post makes no sense. The first sentence says it won't work. The second sentence implies that they did a complete job.

No....the first sentence is not a statement saying it doesn't work. If it was there would be a period at the end of the sentence
  The question marks imply disbelieve on my part that the Jet Hot coating would not be effective. I believe it is a viable choice as it has worked on the exhaust spigot pieces found on the Hindle systems.
  Punctuation has a significant impact (as it should) on how written material is inferred.

[Powderman]

On the spigots I can see it working. I just don't see the tumbler media getting into all the areas between the fins on the collars. I could be wrong. I did overlook the ? in the first sentence, my apologies.

[Powderman]

So is this a thread about exhaust flanges or a grammar lesson? Didn't realize that professional powder coaters also had advanced degrees in literature. This forum is an amazing source of undocumented secrets and knowledge.

Did I spell that right?

What is your input on exhaust flanges? The grammar in some of these posts make it mean the exact opposite of what the poster actually meant. So excuse me for trying to clear it up.

[Powderman]

The grammar in some of these posts make it mean the exact opposite of what the poster actually meant. So excuse me for trying to clear it up.

Actually, the posts were in passive voice. A completely acceptable form of posting questions and statements. The correct reply to his query would have been, "Yes, it would."  I'll grant you that passive voice is an awkward composition, and on a Flesch reading scale it would be low, but it's not improper English. 

There were also missing letters to words in the post that made it harder to understand. Again, my mistake was not seeing the ? at the end of the sentence as I read it quickly.

[MRieck]

An apology was posted....everything is cool gentlemen.

[DaveBarbier]

Linguo, the grammar correcting robot.

[jilespalcock]

Why do they need coating?  I'm a simple soul and use Simonez High temperature aluminium paint (black or silver)  I copes with the high exhaust temperatures, and if cured correctly (250°C for 1.5 hours min in the oven - the wife gets furious!!) prior to use it is robust, oil/petrol proff and won't flake/allow corrosion.

[thelowmax]

I have several sets laying around that are rusted badly, and I have a couple sets on bikes that are starting to rust. I am almost at the point where I'm going to replace the 77-78s with DOHC flanges because they are aluminum and actually polish up nicely, but the earlier SOHCs have no equivalent, so I would like to find a solution to the whole problem before I start buying things.

As for grammar, depending on their usage or comprehension, sometimes it's hard to figure out what somebody is attempting to say. Personally, I make an effort because I prefer to be understood.

[thelowmax]

My main concerns are the negative affects of heat to the finish.

[Lostboy Steve]

I'll work on my syntax.

How about starting right now? Does Jet Hot work or doesn't it?

I had my flanges Cerakoted along with my pipes. I do believe that powder-coating the flanges would work though, like you said I wouldn't use tumbler media though I would carefully blast them.