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will powder coat on headers work?

Discussion in 'The Hokey Ass Message Board' started by ROBERT JAM, May 12, 2011.

  1. ROBERT JAM
    Joined: Nov 13, 2002
    Posts: 736

    ROBERT JAM
    Member

    I just had the local powder coater tell me that powder coat will work on headers.I thought the header would be to hot for the powder coating.Any one give me some good info on this
     
  2. Da Tinman
    Joined: Dec 29, 2005
    Posts: 4,097

    Da Tinman
    Member

    no, powder cures at 450 degrees, headers get a lot hotter than that. Powder coating is a plastic so its just gonna melt off.

    there are a couple spray on coatings that a local guy uses, but they arent powder.
     
  3. Ugly with standard powder. Yes, it will bake
     
  4. ROBERT JAM
    Joined: Nov 13, 2002
    Posts: 736

    ROBERT JAM
    Member

    Thanks I thought so.Didnt want to screw up my sanderson flathead headers
     
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  5. customs by jason
    Joined: Oct 3, 2010
    Posts: 205

    customs by jason
    Member

    you could put a ceramic coating on them its baked on like powder coating and now you can get the ceramic coating in just about any color and in a chrome color
     
  6. 56oldsDarrin
    Joined: May 9, 2009
    Posts: 396

    56oldsDarrin
    Member

    Big Fire, very bad.
     
  7. narlee
    Joined: Dec 7, 2009
    Posts: 238

    narlee
    Member

    The ceramic holds up very well. I had some exhaust manifolds done about 14 years ago and they still look good.
     
  8. eastwood offers a high temp powder coating for exhaust but its crap! stay away from that! I own a powder coat shop and we ceramic coat exhausts for customers. I had my headers on my 51' powder coated with the high temp powder about 12 years ago. Its fine if you dont brush up against it or touch it, the stuff just flakes off!
     
  9. chubbie
    Joined: Jan 14, 2009
    Posts: 2,007

    chubbie
    Member

    OOPS! I did my headers on my model A and like it. so I was going to blast the headers on the 442 and use the eastwood high temp header coat. maybe have to rethink this
     
  10. A local powder coater does black and silver powder coat that holds up on the exhaust,,at least it has on mine. HRP
     
  11. mostly NO.
    I use the high heat powders for motorcycles etc but it doesnt hold up to V-8's at all.
    Dupont makes one called "pipe black" that is supposed to be good for 1000* F , havent tried it yet though.
     
  12. sigh....no fire, but it would get to hot and flake away over time.
     
  13. v-8 motor? black and silver high heat can be gotten from Caswell, but have had zero luck with longevity on v-8's, the high HP v-8's will burn it off in no time flat.
    I have heard good stuff about the dupont "pipe black" from another coater, but havent tried it myself yet.
    I dont know of a silver available besides the caswell and again, their stuff works great on motorcycle headers etc
     
  14. customs by jason
    Joined: Oct 3, 2010
    Posts: 205

    customs by jason
    Member

    you can powder coat motorcycle pipes and headers cause those pipes only get to about 700deg and that was after a long ride right after it pulled n to the shop.
     
  15. bbq paint works good if your poor like me and cant afford the ceramic coatings
     
  16. Big Nick
    Joined: Sep 7, 2005
    Posts: 849

    Big Nick
    Member

    and that still tends to fail, the coater here did a thunder header for a local guy and I watched it bubble right after start up. Send them to Jet Hot, ive never had an issue.
     
  17. customs by jason
    Joined: Oct 3, 2010
    Posts: 205

    customs by jason
    Member

    ive done one set and it has lasted for about a year with no problem alot has to do with prep of the parts and if they were cured at the right heat and for the right time
     
  18. I have flame spray on our headers
     
  19. 1971BB427
    Joined: Mar 6, 2010
    Posts: 5,424

    1971BB427
    Member
    from Oregon

    Doesn't matter how they're done, powder coating wont hold up unless the curing temp is higher than the operating temp. I had an extensive conversation with the local powder coater and he said they use either 250 degree temp or 400 degree temp, and every time you get things hotter than that it will get sticky again.
    Once it's sticky every bit of dirt and crud will stick to the "wet" coating and soon it will look ugly. If it gets way over the curing temp it will simply bubble and smoke away.
     
  20. hotrod40coupe
    Joined: Apr 8, 2007
    Posts: 2,560

    hotrod40coupe
    ALLIANCE MEMBER

    Ceramic coat is the way to go. Another great option is porcelain.
     
  21. ditto, my thoughts exactly.
     
  22. Lucky3
    Joined: Dec 9, 2009
    Posts: 655

    Lucky3
    Member

    It will work perfectly........until you start the engine !
     
  23. joel
    Joined: Oct 10, 2009
    Posts: 576

    joel
    ALLIANCE MEMBER

    I used Eastwoods white "ceramic" coating on my headers and cured it by running on an engine stand for 45 min. So far so good; the car isn't on the road yet.
     
  24. Russ B
    Joined: Jun 13, 2010
    Posts: 636

    Russ B
    ALLIANCE MEMBER

    I used a coater from White City, OR (just outside of Medford about 20 years ago to put on some high temp powder(?) coat on my entire exhaust, except mufflers. Not a great photo, but the coating has stayed on and not flaked or significantly discolored.

    [​IMG]

    this is a recent photo.
     
  25. dannyego
    Joined: Mar 12, 2008
    Posts: 1,377

    dannyego
    Member

    I used vht header paint..... It sucked.
     
  26. 54BOMB
    Joined: Oct 23, 2004
    Posts: 2,003

    54BOMB
    ALLIANCE MEMBER

    They make coatings for exhaust. Check out what the big turbo cars use, that stuff gets super hot. Not every one is stuck in the past like we are. :D
     
  27. chevyshubox
    Joined: Dec 31, 2007
    Posts: 64

    chevyshubox
    Member
    from Australia

    I bought some small block Chev ramshorn manifolds of ebay as I thought they where ceramic coated at least thats what the add said. They looked great till I started the car and within 10 minutes most of the coating had melted off. Guess what they where powder coated but they sure did look good before the engine had been run.
    Anyway I think this answers your question no you cant powdercoat headers as it will melt of within about 20 minutes of the engine being started. There wasnt a fire but I reckon it might have come close as there was lots of smoke and man they sure did look crap after the coating had melted off.
    I put the old ones back on.
     
  28. rodnut1
    Joined: Oct 8, 2010
    Posts: 45

    rodnut1
    BANNED

    My local coater showed me this new 'high temp powder' just the other day. He's been in the coating business for at least 30 years. He claimed he's tried it on a couple of sets of headers, and it works. Don't know how hot his oven was when baking this stuff. I do know that the baking temp does not have to be the working/running temp of the exhaust. The high temp (1800 degrees F.) ceramic coatings I have done locally are baked at around 500 degrees F. The high temp ability of the coating occurs during the break-in and curing proceedure on the motor itself. It may well be the same with this new powder coating system. Personally, I'll stay with the high temp ceramic, as I've always had excellent results from it. Plus there are more colors available. The set of headers and exhaust I recently had coated for my present project was done in 'titanium' and looks bitchin'.
     
  29. Ol Deuce
    Joined: May 30, 2007
    Posts: 984

    Ol Deuce
    Member
    from Mt. U.S.A.

    So Robert, what are ya going to do about the Coating??????????
     
  30. Ol Deuce
    Joined: May 30, 2007
    Posts: 984

    Ol Deuce
    Member
    from Mt. U.S.A.

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