Author Topic: Powder Coat Overflow Tank?  (Read 4138 times)

bpossel

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Powder Coat Overflow Tank?
« on: January 07, 2008, 04:50:16 »
Hello!

Has anyone powder coated their brass overflow tank?

From what I understand, the brass tanks are 3 pieces soldiered together.  The powder coat process requires heating the painted surface, so am concerned that the heat may melt the soldier.

Anyone have any direct experience with this?

 :) Thanks!
Bob

bpossel  (Memphis, TN.)
'71 280SL  /  '97 E320

DavidBrough

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Re: Powder Coat Overflow Tank?
« Reply #1 on: January 07, 2008, 06:41:49 »
Hi Bob,

I’ve had my header tank powder coated and when I took it in I do remember a discussion about soldered or brazed joints. If I remember rightly there was a trial process to check suitability and I think it was decided that the joints were brazed. In the end I went ahead with no problems. He did say if it had been soldered it would have just fallen apart in the coating process. I had this done about 2 years and 10,000 miles ago and no leaks. Hope that helps.


David Brough
1969 280Sl Auto with A/C

bpossel

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Re: Powder Coat Overflow Tank?
« Reply #2 on: January 07, 2008, 07:13:37 »
Hi David,

Thanks for your reply and direct experience!  I guess it would make sense...brass being brazed....

I will also let this group know how mine turns out.  I currently have it at the powder coaters.....

Bob

bpossel  (Memphis, TN.)
'71 280SL  /  '97 E320

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Re: Powder Coat Overflow Tank?
« Reply #3 on: January 15, 2008, 15:17:04 »
Hello colleagues,

Yes, I have "learned" the same.
My 230 overflow tank is mostly soldered and was "test-baked" at 200 °C before possible coating; it came apart. Thus, my tank could not be powder-coated ...
[:(!]

Best,

Achim
(Magdeburg, Germany)
Achim
(Germany)