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A very common misconception is that all stainless steel does not rust. This is false. There are different grades of stainless steel. The only stainless that will not rust is medical grade stainless. One of the common variants of this is 316LVM which is generally the go to stainless for companies that manufacture body jewelry or medical implants. It does not corrode or react to human tissue because it has high amounts of nickel and chromium. The chromium combines with the oxygen before the iron is able to which forms a chromium oxide layer.
Surgical instruments are generally made from 420 or 440 stainless.
At ZZPerformance we use 304 stainless for all of our exhausts and cast pieces. Over time it can show oxidation which can be removed generally with a scotch brite pad but is very resistant to actually rusting through.
In the case of your header it appears they may have used a steel flange as the runners don’t look as though they have been affected as much. You can probably clean those up with a scotch brite pad and a little elbow grease. As for the flange, you could try a scotch brite wheel. Places like harbor freight, Lowe’s, and Home Depot will have them and you can connect it to a drill. That SHOULD get most of that out of the flange but it’s just going to happen again because of the type of material used for the flange.
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I would sandblast it and then CeraKote it with the z series. Good to 1800 degrees and they have several colors to choice from. I love it. keeps the heat way down.
I would sandblast it and then CeraKote it with the z series. Good to 1800 degrees and they have several colors to choice from. I love it. keeps the heat way down.
Cerakote is the way I would go also 
If you were closer I could help you out. I built my own powder coating oven and i have a sandblasting cabinet.
Not even close
That sure looks alot better then what you started with.
Easy Off Oven Cleaner
If we were closer i would do that for you. I still have enough cerakote left over for an entire exhaust.
Easy Off Oven Cleaner
Would I need to bake it with that on? That's how ovens work with that stuff I believe.
Nevermind, just read the bottle and it says do not bake. Let me try that.
You have to bake it at 500 degrees for 1 hour after you spray it on you have to let it air dry for 15 minutes before you bake it. I love that stuff. You exhaust doesn't even get hot and good for 1800 degrees
Would I need to bake it with that on? That's how ovens work with that stuff I believe.
Nevermind, just read the bottle and it says do not bake. Let me try that.
I think that is just oxidized metal area's with low nickle
If you send it for cerakote they will blast it clean before they coat it
Were are you located on Long Island?
Just curious I grew up in Bellmore and then moved out to Ronkonkoma before moving south
I'm out east in Manorville.
Check to see if there is a sponsors list at Riverhead Speedway. I am sure someone in the racing community can help get you what you need. I think that is the only track still running on Long Island except maybe West Hampton. Some of the local speed shops may be able to direct you as well. Back in another life we mostly ran at Freeport and Islip but I don't think there is much left in either area for race stuff.
It is sad that was always a fun track. I heard he was planning on selling it.
