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Old 08-22-2012, 09:07 PM
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Powdercoat or Chassis Paint

A while ago on the forum I saw a thread regarding the pros and cons of powdercoat. In the past I have always used chassis paint with reasonably good results, but since I want this project to be good looking I decided to investigate getting the frame done. After looking around I found only one company that had an oven big enough to accommodate an automotive frame. In my discussion they suggested they would prep the frame, which included sandblasting, coating the frame with zinc-rich primer in the event the powdercoat cracked or chipped in order to prevent corrosion(seems logical)
and powdercoating. The estimated cost was $450.00. Kinda steep, but if it works to keep my investment looking good maybe worthwhile doing. Is it? If I need to make an alteration to the frame, maybe change an engine type or change the suspension, how do I "touch up" or make mods blend in. Withe everything apart right now I can do a good job with chassis paint and changes or damage can be blended in. Can I match a powdercoat finish with a touch up kit or something. A friend of mine said he saw a powdercoat repair done with the electrostatic powder gun and a couple of infrared heaters. I find that hard to believe with curing temps around 400 degrees required. Anyone had any experience with this??

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Old 08-22-2012, 09:40 PM
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I did the chassis of my '31 with PC. Before I sent it off to be done, I built it up completely. To date, I've not had any additional items that needed anything more then bolts to add to that chassis. I did nick(1/8" ) it with a jack stand near the rear suspension - I just used some black paint I had on hand to patch. So far after several years I've dropped wrenches, fasteners, one header and a timing housing on it with nothing more then a minor scuff that I polished out - it's tough if done right.

Price - if they don't include the sandblasting and cleaning, they as well as you are leaving yourself wide open for failure. As far as priming it - I've never heard of that especially at the 385-415 F baking temps. The local guy ( he is a big time operation, doing anything from NASCAR to the local farmer's equipment and yard furniture) does all the prep and there is no primer. He wants literally white blasted steel. The best part - reasonably priced.

The pros and cons - well lets say I've had much better luck with the powder coat the the Imron that the last car chassis was painted with. Others - have not had good luck. It's all in the prep and application.
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Old 08-22-2012, 09:43 PM
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Have never heard of anyone successfully blending powdercoat. That cost is not too bad, I have spent just under $2000 a piece for 2 mid fifties cadillac chassis to powdercoat that had no pitting on them. That is the other problem with powdercoat is that if there is pitting on the chassis it will still be there after it is done, and it does not look too good.
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Old 08-24-2012, 05:13 PM
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Once they are done can anyone tell the difference between PC and paint ????
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Old 08-25-2012, 07:18 AM
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I had my frame powder coated and as others say, it's tough. No primer involved. The price is very reasonable. There's a few pics in my album.
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Old 08-26-2012, 11:31 AM
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Originally Posted by deadbodyman View Post
Once they are done can anyone tell the difference between PC and paint ????
YES !! But either way is better then nothing
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Old 08-26-2012, 10:02 PM
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I have found that on some chassis's there are a lot of places that you just can not get a spray gun into. With the powdercoat they can get in all those nooks and crannies where a gun just can't. On a chassis that is straight forward with no "hard to reach" spots you could probably save a few bucks by just spraying it with epoxy then single stage black.
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Old 08-28-2012, 10:43 PM
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That sounds like a very good price to me. I'd go with the powdercoat. Hands down tougher than chassis paint.
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