Powder coating

jagular911 · 03-07-2005, 12:56 PM

I am considering having the muffler from my 73 911T powder coated.

Has anyone done this, and if so, have you been successful?

Does the muffler get too hot for the powder coat?

Will the heat exchangers handle the heat?

Thanks

buster73 · buster73's Garage

The muffler will get too hot for normal powder coating. You can try ceramic coatings which can withstand the heat.

RickM · RickM's Garage

There are High-Temp powder coatings. However, exchangers may be pushing the limit. a search should bring some joy on this subject.

jpnovak · 03-07-2005, 01:41 PM

Jet hot or other ceramic coatings are much better suited to these applications. I personally would not powerder coat my exhaust system. Too much heat.

Mike Bonkalski · 03-07-2005, 02:12 PM

I ceramic coated my muffler and heat exchangers and they turned out great. I was quite happy with the results given their initial condition. If you need some more info pm me.

kaisen · 03-07-2005, 03:53 PM

Jet Hot

Andras Nagy · 03-08-2005, 03:56 AM

Hi Jagular,

When I did the rebuild, I had the powdercoater coat the muffler also, and it burned off almost immediately after firing up the car. Sort of interesting actually, the burn-off leaves a white powdery residue, but the two ends are still beautifully black. The first place the powder burned off is at the point where the exhaust hits the back "face" of the muffler, right at the flanges.

All the other sheet metal is still satin black, very pretty, and dust and "grime" roll right off with diluted Simple Green.

But the muffler definitely gets too hot. Once I pull the muffler again for whatever reason, I'll use VHT, which has worked in the past without burn-off.