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Old 08-05-2014, 04:45 PM
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Powdercoating a frame

Because of chips, peeling, and other problems with powder coat, I'm a little hesitant to use it on a frame.

Has anyone had a bad experience with powder coating a frame?

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Old 08-05-2014, 09:15 PM
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I've used powdercoat, though not on a frame. I live on a dirt road, and the powder coat parts I've used get a sand blast treatment from the road on a regular basis. I've had no problems with chipping. I have used POR 15 on a frame and was happy, but if I had my druthers, I'd use powdercoat. If you had a problem with peeling and chipping, I would bet the surface wasn't prepped properly.
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Old 08-06-2014, 01:44 PM
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Done several with powdercoat. Its good and strong, but yes it can also chip - so can paint. Have some single stage paint (same color) available for touch ups. Had good luck with powdercoating - and its cheaper than paint too.
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Old 08-06-2014, 02:27 PM
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33WILLYS77 says powdercoat is cheaper than paint. Is that right ? I never heard that before.


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Old 08-06-2014, 03:44 PM
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had my frame for the 27 blasted & powder coated in 08 and it was $350. It has held up perfect!! the place is about 5 miles from me , they picked it up and dropped it off also.
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Old 08-06-2014, 03:57 PM
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My '31 was media blasted and powder coated about 8 years ago. Stones, dropped wrenches and other things haven't hurt it a bit - not a chip that I've seen yet.

This is the day I got it back:



And a small part of it about 5 months ago when I freshened the driveline and steering


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Old 08-06-2014, 04:25 PM
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I had a complete frame, rearend, complete front parts, motor mounts, trans mount, and other brackets done at a local place. They blasted and coated everything for $325. Yes, it is cheaper and I didn't have to do it.
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Old 08-07-2014, 05:12 AM
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Yes, it's cheaper. I got a price of $600 (northern nj) to sand blast and powder coat.

Thanks, I was worried about stone chips and such. I have a friend who is giving me powder coating horror stories, which I don't buy.

Do you think that galvanizing the frame is necessary under the powdercoat? That's about $300.
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Old 08-07-2014, 08:14 PM
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Quote:
Originally Posted by Jsup View Post
Yes, it's cheaper. I got a price of $600 (northern nj) to sand blast and powder coat.

Thanks, I was worried about stone chips and such. I have a friend who is giving me powder coating horror stories, which I don't buy.

Do you think that galvanizing the frame is necessary under the powdercoat? That's about $300.
I've never heard of galvanizing it first. It doesn't seem compatible as they both need heat, the powder to cure and the galvanizing to melt. Wouldn't the galvanizing run under the powder while curing ??? or is it a cold coating ??
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Old 08-08-2014, 02:20 PM
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Quote:
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I've never heard of galvanizing it first. It doesn't seem compatible as they both need heat, the powder to cure and the galvanizing to melt. Wouldn't the galvanizing run under the powder while curing ??? or is it a cold coating ??
Galvanizing is done at about 850 degrees with molten zinc. Powdercoating is baked at about 400 degrees. I don't think baking the Powdercoating would affect the zinc.
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Old 08-08-2014, 06:25 PM
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Unless the car is going to be driven in the ocean surf, that's really excessive. Then there's the situation that if you want to weld a forgotten bracket on, the zinc coating fumes will make you very sick where PC can be ground off then touched up with a like color paint. Oh yeah, media blast and PC that frame I show above along with a loose few brackets, $400
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Old 08-15-2014, 09:28 PM
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I've never heard of galvanizing it first. It doesn't seem compatible as they both need heat, the powder to cure and the galvanizing to melt. Wouldn't the galvanizing run under the powder while curing ??? or is it a cold coating ??
Two separate processes, days apart. It can be done.
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Old 08-15-2014, 09:31 PM
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Originally Posted by Irelands child View Post
Unless the car is going to be driven in the ocean surf, that's really excessive. Then there's the situation that if you want to weld a forgotten bracket on, the zinc coating fumes will make you very sick where PC can be ground off then touched up with a like color paint. Oh yeah, media blast and PC that frame I show above along with a loose few brackets, $400
Thanks. Galvanizing is overkill.

The local shop does really nice work, he gave me a number of $600.
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Old 08-16-2014, 10:43 AM
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Power coating a frame

Years back when I was still involved in sprint car racing we had the cars frame that we were running at the time power coated a bright gloss white, I was on that crew for two years and when winter time came and racing stopped we would tear the car down for a good going over we never found any thing wrong with the power coat. And i can tell you that car saw way more abuse from the crappy tracks that we ran on than any thing a street driven car would ever see.....so yes IMHO it does work with no problems.

Kenny


You might do all you say you can do........but first you have to catch me G-man
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