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Unread 08-04-2014, 03:23 PM   #1
Robbie13
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Removing Powder Coat?

Ok, I bought some Olympic rock sliders for my wifes Jeep. It's a Sahara. I ordered the wrong ones since I have that plastic piece between the front/rear fenders that is anchored by a piece of metal that is riveted to the body under the doors. Ones I bought are too narrow. No prob. I will weld some 1 1/2" flat bar to the top to make the difference up. My question is the sliders seem to be powder coated and naturally when I weld the new flatbar in place this will ruin that. Can it be sandblasted off and redone? What type of abrasive to use?

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Unread 08-04-2014, 06:30 PM   #2
Jim1611
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The powder coat won't come off very easy if it's very thick. I've found that it softens up if you use some heat on it, like a small propane torch. Scrape what's lose away then sandblast the rest. Worked great for me.
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Unread 08-05-2014, 02:49 PM   #3
Robbie13
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Quote:
Originally Posted by Jim1611 View Post
The powder coat won't come off very easy if it's very thick. I've found that it softens up if you use some heat on it, like a small propane torch. Scrape what's lose away then sandblast the rest. Worked great for me.
Will try that. Thank you!
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Unread 08-06-2014, 02:44 AM   #4
TexasJeep01
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Auto one has aircraft removing paint spray, this stuff is pretty powerful it seems and takes off anything to the bare metal.
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Unread 08-06-2014, 02:45 AM   #5
TexasJeep01
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That or you could soak an rag in some mineral spirits or paint thinner and set it on the powder coat for a few hours. Hope it helped!
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Unread 08-06-2014, 08:22 PM   #6
Jim1611
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Will try that. Thank you!
You're welcome. I have also tried aircraft stripper and it was marginal.
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Unread 08-07-2014, 07:42 AM   #7
swirve
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If its good powder then the only way to get it off is sand/ grind or have it blasted. Stripper wont touch powder coat
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Unread 08-25-2014, 02:38 PM   #8
y2k-fxst
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When I worked in the factory and we had parts that came out bad from the powder paint line we had to put them in the burn-off oven we used for the racks then scotch brite clean and recoat.
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Unread 08-26-2014, 01:02 PM   #9
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Originally Posted by y2k-fxst View Post
When I worked in the factory and we had parts that came out bad from the powder paint line we had to put them in the burn-off oven we used for the racks then scotch brite clean and recoat.
This is good inside knowledge, thank you.

What temperature was that burn-off oven?
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Unread 09-01-2014, 10:10 AM   #10
y2k-fxst
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This is good inside knowledge, thank you.

What temperature was that burn-off oven?
Unfortunately I am not sure, we burned off the racks every-other day as powder coating would build up to the point it didn't get good ground. I would guess around 7-800 degrees as it was black heat when racks were removed, not hot enough to cherry the parts. But, would be high enough to draw temper on hardened parts such as springs. Start drawing temper at around 600 degrees.
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Unread 09-15-2014, 03:25 PM   #11
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Man this stuff is hard to get off. I used Rust-Oleum Aircraft Remover. This got the biggest majority of it off. The nooks and crannies that were left I tried to use my buddy's small sandblaster. Wouldn't touch it. I read that using Permatex gasket remover may work, so I will try that next. Also, the aircraft remover puts light surface rust on quick! Understandable since I am sure it is eating into the metal as well. When I get this stuff off I plan on getting them Rhino Lined.
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Unread 09-15-2014, 03:46 PM   #12
swirve
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Quote:
Originally Posted by Robbie13
Man this stuff is hard to get off. I used Rust-Oleum Aircraft Remover. This got the biggest majority of it off. The nooks and crannies that were left I tried to use my buddy's small sandblaster. Wouldn't touch it. I read that using Permatex gasket remover may work, so I will try that next. Also, the aircraft remover puts light surface rust on quick! Understandable since I am sure it is eating into the metal as well. When I get this stuff off I plan on getting them Rhino Lined.

Its the air that puts the rust on and most likely the water that you are using to neutralize the stripper
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Unread 09-15-2014, 10:29 PM   #13
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That's flash rust and is a by-product of using an acid on steel. The moisture in the area can attack the steel in minutes
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Unread 09-16-2014, 03:53 AM   #14
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Originally Posted by Robbie13 View Post
Man this stuff is hard to get off. I used Rust-Oleum Aircraft Remover. This got the biggest majority of it off. The nooks and crannies that were left I tried to use my buddy's small sandblaster. Wouldn't touch it. I read that using Permatex gasket remover may work, so I will try that next. Also, the aircraft remover puts light surface rust on quick! Understandable since I am sure it is eating into the metal as well. When I get this stuff off I plan on getting them Rhino Lined.
I would burn off whats left with a propane torch.
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Unread 09-16-2014, 02:53 PM   #15
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I would burn off whats left with a propane torch.
Yep. Going to try that as well. Going to have to blast it to remove the surface rust left behind too. Was expecting that anyway.
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