 Preventing flash rust without spraying two part epoxy primer?, There has to be a way! Metal ready is not it! |
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| ghuff |
 Aug 14 2009, 01:44 PM
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#1
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This is certainly not what I expected down here.  Group: Members Posts: 849 Joined: 21-May 09 From: Bodymore Murderland Member No.: 10,389 Region Association: MidAtlantic Region  |
So.... POR 15 metal ready sucks at preventing flash rust. Even in a garage that is ok at sealing.
Spraying a two part epoxy primer is out, and my pans are going to be bare metal for a while since I have to remove the cross brace in the pan and the center tunnel to attack the rust in there. Is epoxy primer available in cans? I need to prevent the metal from flashing and rusting agian while this is done so I can do it all with por 15 excepting the area where the brace/center tunnel mates with the pan, which of course will be weld through primer. Also any reccomendations on a good weld through primer? U-pol I hear is the best and worth every penny vs 3m or the others? Thoughts? |
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| dlestep |
Aug 14 2009, 09:01 PM
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#2
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I am smilin'... Group: Members Posts: 890 Joined: 15-January 08 From: Sunrise Florida Member No.: 8,573 Region Association: South East States |
...Phospho is an acid prep that has to be neutralized with water (sponge lightly). It leaves a medium gray coating that eliminates flash.
Flash starts occuring quickly. The onset of which is not decernable with the naked eye. However, one trick is to use a digital camera, which finds the flash. Try it, you'll be amazed at the amount of rust you'll miss. I use it to verify the areas I've worked on. |
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| ghuff |
Aug 14 2009, 10:34 PM
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#3
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This is certainly not what I expected down here. Group: Members Posts: 849 Joined: 21-May 09 From: Bodymore Murderland Member No.: 10,389 Region Association: MidAtlantic Region |
QUOTE(dlestep @ Aug 14 2009, 07:01 PM)  ...Phospho is an acid prep that has to be neutralized with water (sponge lightly). It leaves a medium gray coating that eliminates flash. Flash starts occuring quickly. The onset of which is not decernable with the naked eye. However, one trick is to use a digital camera, which finds the flash. Try it, you'll be amazed at the amount of rust you'll miss. I use it to verify the areas I've worked on. I noticed within an hour the surface of the metal gets "dull" and I am guessing that is the beginning of the flash? Does the camera accent that or am I totally wrong? |
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