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Galvanizing frames *ANOTHER QUESTION*

Discussion in 'The Garage' started by thatK30guy, Feb 15, 2004.

  1. thatK30guy

    thatK30guy 1 ton status Premium Member

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    There is a galvanizing plant about 40 miles from me and they do literally everything. Their tank is like 85 feet long and can do frames easily.

    Does anyone think this method is worth it to protect and prevent rust corrosion? I would have to sandblast the frame real good before taking it down there. Have not gotten a price quote from them yet, but it can't be too much.

    What do you guys think? The finish is a silver color, which can be painted over with chassis black easily. /forums/images/graemlins/thinking.gif

    Update: 2/16/04
    What would be a good flexible coating for leaf springs? I want something strong, durable, won't peel or crack, etc. Springs flex like crazy, so any type of coating seems almost impossible to keep on without cracking or peeling. Any ideas? /forums/images/graemlins/thinking.gif
     
  2. BlueBlazer

    BlueBlazer 1/2 ton status

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    Re: Galvanizing frames

    If you are willing to strip it down bare and sandblast it, I think a better option would be POR-15. Most likely a lot cheaper and I think would actually protect from rust better.
     
  3. thatK30guy

    thatK30guy 1 ton status Premium Member

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    Re: Galvanizing frames

    I prefer to stay away from POR-15. If something were to ever happen and you want to refinish the frame later, its easier to sandblast the galvanizing rather than the POR stuff. /forums/images/graemlins/thinking.gif
     
  4. sled_dog

    sled_dog 1 ton status

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    Re: Galvanizing frames

    If I stripped my frame that far down I'd just sandblast and spray a nice gloss frame paint on it. I may do that yet, I should do it before I go mounting a body setup to it.
     
  5. thatK30guy

    thatK30guy 1 ton status Premium Member

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    Re: Galvanizing frames

    That was the original plan but after reading some info about the galvanizing plant, it seems logical to prevent rust even further by doing this method. /forums/images/graemlins/thinking.gif I may just have to try it out and let you guys know how it goes. /forums/images/graemlins/thinking.gif
     
  6. sled_dog

    sled_dog 1 ton status

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    Re: Galvanizing frames

    hey if its not too much I'd say see how it goes.
     
  7. ryoken

    ryoken Puppy Fabricator Premium Member GMOTM Winner

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    Re: Galvanizing frames

    keep in mind, if you galvanize it, you should really put a piss coat of zinc chromate over it before painting..

    myself, i would just metal condition the bare frame, zinc it, epoxy prime and a good urethane paint over it..
     
  8. darkshadow

    darkshadow 1 ton status

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    Re: Galvanizing frames

    that would be a good idea but as pointed out the are cheaper meathods, but it sound like a great idea. When i was doing orenmental welding high end fences and railing ect, we could offer lifetime rust free on fences or gates that we glavanized, BUT nothing on the paint, as it WILL flake off. It just dosent stick to galvanizing, You will have to get inerdustrl epoxy primer on there first unless you want the siver look /forums/images/graemlins/histerical.gif
     
  9. thatK30guy

    thatK30guy 1 ton status Premium Member

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    Re: Galvanizing frames

    Ahhh...I hadn't realized paint won't stick to galvanized surfaces. /forums/images/graemlins/thinking.gif

    My original plan was to sandblast and spray black epoxy primer on it after the metal etching primer first. But then I heard about the galv. and thought "why not?"

    A silver frame wouldn't look too bad. I know it would stand out a little bit. But at least it would allow you to see stuff on and around the frame a little better than a darker color like black. /forums/images/graemlins/thinking.gif
     
  10. cybrfire

    cybrfire 1 ton status Vendor GMOTM Winner

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    Re: Galvanizing frames

    So does that mean that you are going to pull all the rivets and do individual peices? If you wanted it completely galvanized that would be the way to go. I think it is a good idea. How about yellow chromate?
     
  11. ryoken

    ryoken Puppy Fabricator Premium Member GMOTM Winner

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    Re: Galvanizing frames

    production cars often have galvanized parts painted, but you must self-etch with zinc. if done properly it wont peel. painted truck bumbers anyone?

    any good paint process will follow that order, zinc, epoxy primer, urethane topcoat, whether it's bare steel or galvanized...
     
  12. thatK30guy

    thatK30guy 1 ton status Premium Member

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    Re: Galvanizing frames

    I have been thinking of grinding all the rivets off. I know thats a lot of work as I've done 2 frames before of removing rivets. Took forever. I also agree it would be best to do it this way so every piece can be covered with the galv.

    Will do some checking with the plant and see what they say as far as doing a bunch of individual pieces and a price for all, too. /forums/images/graemlins/deal.gif
     
  13. Triaged

    Triaged 1/2 ton status

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    Re: Galvanizing frames

    TMANOFCALI had his whole frame poweder coated. He said it wasn't even that much to have it done so when he had it appard it "would have been stupid not to". Might want to look into that as well.
     
  14. RustBuket

    RustBuket 1/2 ton status

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    Re: Galvanizing frames

    I say if its relatively cheap, why not? It would prevent rust for a long time and no one really looks too closely at frames anyways.
     
  15. m j

    m j 1/2 ton status

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    Re: Galvanizing frames

    the shop owner that did my axles turning had his Toy frame galvanized
     
  16. HarryH3

    HarryH3 1 ton status Author

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    Re: Galvanizing frames

    A galvanized frame should last through a LOT of salted-road-winters. /forums/images/graemlins/thumb.gif The biggest difference between galvanizing and POR-15, paint or powdercoating shows up later. Scratch the galvanized frame on a rock and the galvanic action of the zinc will still protect the exposed steel. Other coatings don't provide that kind of protection from rust. /forums/images/graemlins/cool.gif
     
  17. stallion85

    stallion85 1/2 ton status

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    Re: Galvanizing frames

    Hmmm what about galvanized rocker panels...... /forums/images/graemlins/thinking.gif /forums/images/graemlins/thinking.gif /forums/images/graemlins/thinking.gif /forums/images/graemlins/thinking.gif /forums/images/graemlins/thinking.gif /forums/images/graemlins/rotfl.gif /forums/images/graemlins/rotfl.gif /forums/images/graemlins/rotfl.gif /forums/images/graemlins/rotfl.gif
     
  18. Hossbaby50

    Hossbaby50 3/4 ton status

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    Re: Galvanizing frames

    you can paint galvanized but you must use the zinc chromate etching primer.

    If left bare the galvanized will "white rust". Water will blemish the galvanized and make ugly white colored spots.

    there is another form of galvanized you might see if that shop does called "Paint Lock". There are some differences in the annealing (sp) process and it doens't come out bright silver like galv. but it is alot more paint friendly.

    I don't see galv. as being a bad option if the price is right and you do it right an paint it with the right stuff. I personally would look into the powdercoating process as a first choice but galv. would probably be my second.

    be careful though of grinding, cutting, or welding on the frame after the galv. is done though. the zinc in the galv is bad for your health.

    Harley
     
  19. JK5

    JK5 1/2 ton status GMOTM Winner

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    Re: Galvanizing frames

    [ QUOTE ]
    There is a galvanizing plant about 40 miles from me and they do literally everything. Their tank is like 85 feet long and can do frames easily.


    [/ QUOTE ]

    I'd start looking for a Power-coat Factory!!! /forums/images/graemlins/wink.gif /forums/images/graemlins/waytogo.gif
     
  20. ZooMad75

    ZooMad75 1/2 ton status Premium Member GMOTM Winner

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    Re: Galvanizing frames

    I'd second the Powercoating. Granted if scratched it don't offer the rust proctection that galvanizing does, but it takes a hell of a lot to scratch powdercoating down to the base metal. That stuff is tough. I've had to beat on a frame that we had coated that got bent in shipping. Even banging on it with a 10 pound sledge didn't hurt it. Granted, its not like dragging the whole truck over a boulder but still pretty tough stuff.
     

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