I was wondering if anyone "high temp"(jethot) coated their headers by themselves. Any DIYer's out there? I just bought a set of SS headers and was thinking about doing it myself. I'm pretty handy and do all of my installs and it just seems like more work and $$ to ship the headers out to have them jethot coated..plus the lag time. I found this coating that can be used directly on the metal and is rated @ 2000F.
http://www.jscspeed.com/350z/350z_ba...austheader.htm

What do you think? Plus I'm doing the header install myself, so I'd be a lazy azz if I couldn't just spray them down w/ a couple coats.

 

Just get it jet hot coated, but only if its aftermarket and off the vehicle.

 

They're Strup headers. Can you give reasons for your opinion?

 

If you spray it on, when the headers warm up it'll evaporate. When you send it off to jet coat it, they bake it on. It won't evaporate off the headers.

 

You shouldn't spray coat anything onto your headers unless you are going to do it properly...

you need to make sure the stuff adheres to the inner wall. Remember it will be subject to a lot of fast flowing gases, which means not only high temperatures, but also a lot of shearing force.

Just make sure you take all necessary steps to ensure good adhesion... I'm not sure what the instructions recommend, but if it were me, I'd probably do the following:

1. washing and drying with detergent
2. rinsing/wipe down with alcohol and dry again
3. scuff up the metal with steel wool or fine grit sand paper
4. wipe everything down with alcohol again
5. Do multiple light coats instead of 1-2 heavy coats

just a suggestion

Also the description of the item sounds kind of arbitrary... you can paint the header wrap, or the header, or both

 

The most DIY way is header wrap. Thermo-tec is a company that sells header wrap and exhaust wrap.

 

send it to jet hot, your home made coating will bubble right off.

 

+1

I've heard good stuff about jet hot

 

I thought jethot coats the exterior, not the interior? How could they possibly coat the interior?

97Supratt--Also, I don't understand why you say it will "bubble off" if it's guaranteed up to 2000F. They're not going to get nearly that hot.

 

what they are trying to say, if you want results dont cut corners. Do it right the first time, and there will be no question later down the road. honestly though, the headers dont need either of that shat. Just install them, if they are defective they will crack anyways. More than likely you will run them without any problems with or without the jet coat.

 

I never said it'll bubble off, it was the other member. The paint will last up to 2000F nobody is questioning that. The question at hand is "will it stick to the header?".

 

I JET-HOT coated mine out of safety concerns... I bought a set of new TopSpeed headers for $200, with the extra money, I put it into a top quality coating. I can be a cheap **** sometimes, but when I read about all the time it takes to install these biotches, I said NO rattle can on this project.

http://www.jet-hot.com/Pages/why.html

They coat the inside after dipping them in cleaning solutions. I think I paid $200 for the header coating and $150 for the HFCs. They obviously sealed off the substrates on the cats. It was peace of mind knowing the temps would be reduced by about 40% on my naked headers. Wait until you see the header proximity in relation to important wiring and the GAS lines, its a little scary. My headers still look great today BTW, 3yrs later and hundreds of redline gear changes and holding redline for extended periods of time.


GL
Zquicksilver

 

Oh, I get ya.




I wasn't planning on doing it because I'm cheap..I'm anything but. I enjoy working on my car and get a satisfation out of doing it and knowing that things are done correctly. I can't tell you how many posts I've read of people complaining about shizzy service.

Thanks for the insight into the service. I didn't know that it was that indepth of a process. I just thought that it was an exterior coating. I guess jethotting the headers IS the way to go.

 

I think jethot coating works similarly to powdercoating... they negatively charge the header and then the coating particles are positively charged, so they stick really well
At least that's how powdercoating works (sorta) but I'm not 100% sure about this

 

Yes, but in powder form. Then it is placed in a special oven where it is baked and the paint adheres to the metal.

 

I had my Strup headers jet hot coated, I dont want to deal with problems in the future with them due to the hard install. I also drive in winter/salt climate so I figure its a good warranty against corrosion. They also have a great warranty for new headers coated by them. The heat reduction doesnt hurt either

 

I had my strup headers done by Jet-hot as well:

1) the interior and exterior of the header was coated.
2) plug the O2 sensor bungs, otherwise you'll spend time cleaning the threads out.
3) Engine temps were lower than OE headers (no heat issues)
4) the quality and time to get them coated was superb - I'd do business w/ jet-hot again.

-don't do header wrap...it's not as consistent and therefore causes hot and cold (relative temp differences) spots on the header - overtime this can lead to cracking or some other failure.

 

^^Thanks and thanks to everyone who posted for your help.