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Old 04-28-2008, 09:22 PM   #1
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Default Odd observation

I have those cut buckets with the magnetic brush holder sitting in my shop. I had been spraying BM Metal and Wood Low Lustre black on a couple pieces and noticed the the magnets attracted the black overspray mist. I had used liners in the cut buckets and the area directly above the magnet had 100x more paint than the other areas. . It obviously does not matter at all for any real purposes, just struck me as strange that magnets attracted overspray. Any thoughts as to why?

Last edited by DeanV; 04-28-2008 at 09:55 PM.. Reason: spelling
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Old 04-28-2008, 09:28 PM   #2
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Almost makes you wonder if there are metals in the formulation



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Old 04-29-2008, 09:24 AM   #3
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The black uses black iron oxide as a pigment.
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Old 04-29-2008, 11:05 AM   #4
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The paint has a specific polarity. That is determined by a number of things including pigments, diluents, and solvents. Think about electrostatic painting where the paint is charged either + or - and the "work" is the opposite. Opposites attract.
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Old 04-30-2008, 02:07 AM   #5
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I like the oxide theory. Wonder if a red oxide would do the same thing?

I have another theory though, doesn't the atomization of the paint create some kind of charge? Either static or otherwise?
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Old 04-30-2008, 08:31 AM   #6
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I did not think about the pigments, that could be it. I would not think polarity of paint would necessarily be the cause, because in elctrostatic, the charge is added to the substrate and paint (I think). I am not sure that magnetic polarity is the same as electrical polarity (eg - electrical charge would not be drawn necessarily to a + magnetic pole????)I am surprised that it would even show up on the magnet though, since I would not think it would be able to pull material from very far away at all.
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Old 04-30-2008, 08:19 PM   #7
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Quote:
Originally Posted by DeanV View Post
I have those cut buckets with the magnetic brush holder sitting in my shop.
I've worked for alot of companies, and they all have those cut buckets sitting in their shop. I never see anybody use them though?
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Old 04-30-2008, 09:52 PM   #8
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I have them for when I run low on good empties. Back-up cut buckets.
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Old 04-30-2008, 10:04 PM   #9
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We stopped using them because they tip over easily. Too top heavy. Otherwise a good idea. Mike
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Old 04-30-2008, 10:49 PM   #10
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I save the plastic butter type containers to use as cut buckets, etc. When not in use snap the lid back on and paint stays fresh. I also make use of buckets from my pool chemicals, add metal paint roller rack. You have a decent roller bucket. Again place lid on bucket and paint stays fresh.
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