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Old 01-08-2006, 07:39 PM
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Bare metal

Hey,
I was wondering what would you guys suggest prior to applying primer onto body parts that have been sanded to bare metal and sitting there for a month or two. The scratch marks were made with 120 grit on a DA sander. So should i make a quick pass with 120 grit to make sure there is no spots of rust on the panels? And for where i cant get with the da, a quick dusting with the sandblaster? Or would you suggest using some sort of acid or solution to prep the metal? And also, what steps do you guys use when prepping bare metal and to make sure there is no rust hiding and waiting for you to cover with primer ?

Lil Mikey

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Old 01-09-2006, 06:15 AM
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I'd suggest re-sanding to get ride of all the rust and then a few coats of epoxy...
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Old 01-09-2006, 06:49 AM
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Ditto to the above, just make sure it's really clean before the epoxy.
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Old 01-09-2006, 07:31 AM
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Did the same thing with my weld lines.

Mike,
I had the same problem, I had a 5 foot weld line that I had welded up and then went back a month later and ground down flush and made sure all rust was removed before I applied my two coats of mp170 epoxy primer, it was a pain but well worth it.

MP
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Old 01-09-2006, 02:37 PM
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Thanx guys,

Lets say i have a few "Deeper" scratches. How do i make sure all rust is out of the game? Scotch pad it?

Mikey
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Old 01-09-2006, 02:49 PM
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hooked up my die grinder.

Mike,
I hooked up my die grinder with 36 grit 3m roloc and got after those "Deep" scratches until it was rust free.
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Old 01-09-2006, 02:50 PM
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Thats a good idea, probably what i'll do after i'm done resanding.
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Old 01-09-2006, 03:37 PM
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I will always use a green or red scotchguard pad wet with metal prep/phosphoric acid solution and scrub the metal to clean bright shiny metal. To me that works the best at getting all the corrosion out without further marring the surface.
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