Powder coat and heat

[Gavin Housh]

Has anyone used powder coating on an expansion chamber? I'm sure the middle to back sections can handle the heat, but I'm not sure about the head pipe. Thanks, Gavin.

[tmc3c]

Hi Gavin, I have on my 250 and it works great.I even had the chrome tip done but I screwed it up when I was soaking it in MURATIC ACID[8]
The header part of the pipe looks like the rest.The guy who did mine said the the temp for which it would take to burn off wouldn't be made by a 2 stroke motor.They Powder coat headers for cars/boats etc.


Thomas Carmichael


1970 125 Six Day
1976 250 Hare Scrambler

[cubfan1968]

Hi Thomas, got a question about this. Does the heat of the oven clean out the pipe?

Rod Whitman
1972 Six Day (Rider)
1972 Six Day (Project)

[tmc3c]

Rod, I am not sure if they vat it in the solvent they clean heads in first or it bakes in the oven and that is what cleaned it out.I know that the pipe is clean inside when I got it back though.I have heard that if you want to clean a pipe out to throw it in a campfire.



Thomas Carmichael


1970 125 Six Day
1976 250 Hare Scrambler

[Gavin Housh]

Thanks guys, I'ii let you know how it turns out. Gavin

[tmc3c]

Rod, The shop I use is a machine shop also so that is where the vat comes in play.



Thomas Carmichael


1970 125 Six Day
1976 250 Hare Scrambler

[OUCWBOY]

Marc Biro did a six day pipe with powder coat and it was awesome!

Donny Smith

[Marc Biro]

Gavin,

I sold my powdercoating shop a few years back and I can tell you that most powders (excluding high temp because finished color is terrible)are good to about 450 F.

Marc

[John Ehrhart]

I'm a little confused here (well, my wife says more than just here.) I raced a TZ 250 with exhaust pyrometers (temperature sensors to avoid seizing,) and we tuned to get a temp around, I believe, 1200 degrees. Now, since I am confused, it may have been even higher, but I think I'm in the right church, if not the proper pew.
Then  we have a post saying it's only good to 450.
Can someone explain?

[Keithuu]

Enduro Engineering uses a hi-temp powder coat on their "in-house" 2-stroke exhaust systems. It's allegedly some sort of trade secret but I'm sure any qualified powder coater will know how to do it.

I've got 1 full season with their pipe on my 300 and the coating has held up pretty well, though I have touched it up a bit with high temp exhauist paint.

It is indeed true that 2 stroke motors typically run cooler than 4 strokes which is what makes powder coating feasible.[]

Keithuu