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Old 02-04-2007, 12:15 PM   #1
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this is kinda a dumb question ,but i just got back in to the hobby and i started going through a lot of my old cars i sotered them in a up stairs bed room its kinda cold in there in the winter time but i leave the door open most of the time . anyways as i was looking a my old cars the cvds and black steel screws rusted on them. what causes this
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Old 02-04-2007, 12:16 PM   #2
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Moisture.
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Old 02-04-2007, 12:20 PM   #3
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but i had it in my house i didnt think that it would do that. they sat for a long time though. like two years.
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Old 02-04-2007, 12:22 PM   #4
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is my house to damp or is it just because its steel and some of the coating has worn off
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Old 02-04-2007, 12:22 PM   #5
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There is moisture in the air... Humidity.
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Old 02-04-2007, 01:20 PM   #6
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just change the screws to stainless they never rust
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Old 02-04-2007, 08:03 PM   #7
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stainless will corrode. it just takes a really long time. dissimilar metals, when in contact, create very small electrical currents that cause the rust. also, if you do any machine work on the stainless with a non-stainless tool, it will corrode in the machined areas. that is what they told me in college, anyway. and the foglight brackets i made from stainless for my old car rusted where i ground the edges round.

rash
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Old 02-04-2007, 11:40 PM   #8
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unless they are vaccum sealed in a air tight bag it will rust
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Old 02-08-2007, 10:49 PM   #9
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The heat/cool cycles from season to season will cause condensation. Drier climates will not be as bad, but it still happens.
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