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Old 06-24-2009, 11:05 PM   #16
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Everything rusting badly in the storage room


[quote=Chemist1961;292152]Gday Gaza,

Not sure about the moth balls by themselves, BTW I am not A CHEMIST, (it's a nickname) but is it possible you could have a combined effect from moth balls and several other items vapourizing and making an airborne corrosive in your storage area?

That wheel /brake disc on the BMW seems to suggest you're dealing with more than humidity. How is the paint finish on the fender at that corner of the car. Is there any indication of discoloration or dullness if you are outside in bright sun?[/quote
You seem to be doing a pretty good job on the Chemistry side, so I will still call you Chemist!!
I will have a good look at the BM now that you mention it, however I am sure everything else is ok except for the disc caliper cover and the centre of the wheel hub which is very rusted.
I think you might have something in the combination of a couple of chemicals, i will check that further. Thanks for your interest. GAZA

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Old 06-24-2009, 11:08 PM   #17
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Everything rusting badly in the storage room


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Originally Posted by Just Bill View Post
The space needs ventilation, or at least air moving. A small fan left on all the time would help.
I have had an exhaust fan installed which I am thinking of putting on a timer, however I would still prefer to know what causes it. Thanks for interest
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Old 06-24-2009, 11:35 PM   #18
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Do you leave the electric "electric golf buggy" plugged into it's charger in there? Usually those have multiple lead-acid batteries in them, which can give off acidic gasses when overcharged.
Yeah, I was told that by someone else also, however the golf cart is around the corner about 3 metres away in the garage and nothing else around the cart gets rusted. What sort of distance from the golf cart would you expect that metal may be affected? The interesting thing is that while every metal thing in the storeroom in rusted, including the front wheel disc on a car, I notice the metal latches on the door frame are also rusting which makes me think it is something happening in this storeroom and also out in the garage near the door to this room only. What ever it is, it seems mighty powerful to do the damage it is doing. Thanks for your interest. GAZA
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Old 06-24-2009, 11:36 PM   #19
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Everything rusting badly in the storage room


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"plant chemicals"? Do you mean fertilizers and such? That could be at least part of the problem if they're not in sealed plastic containers.
I will check that also GAZA
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Old 06-24-2009, 11:39 PM   #20
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Everything rusting badly in the storage room


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One other thought....is the room drywalled? A lot of bad drywall that outgassed corrosives was shipped from China around the time your house was built.
I do not think we use that in Queensland Australia. Our internal walls are made from timber studs and plasterboard sheeting all from Australia
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Old 06-25-2009, 05:54 AM   #21
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Everything rusting badly in the storage room


You don't need a big fan, and most likely, vents cut into either end would suffice. I have often used moth balls to keep mice out of my shed, and no rust issues.
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Old 06-25-2009, 06:10 AM   #22
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Everything rusting badly in the storage room


Out of curiosity, did you use vinyl flex pipe or metal for the new fan and is it a metal fan and box.
If you are venting a corrosive and draw this mix through there you will also want to keep an eye on the fan for corrosion...
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Old 06-25-2009, 06:38 AM   #23
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Everything rusting badly in the storage room


GAZA , Scrap the mothballs but save the box and do some backgorund checks.
I just read up on this and it turns out some moth balls and moth crystals contain paradichlorobenzene ...Apparently there are 2 types..., napthalene and those which contain chlorine, so this could be producing hydrochloric acid which could be your culprit or at least part of the issue.
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Old 06-25-2009, 07:26 AM   #24
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Everything rusting badly in the storage room


Gaza,

I just Googled moth balls and rust again and came across info at metalwebnews.com/howto/rust/rust.html.

Read the article "A Primer on Rust" by Bob Neidorff,

I didn't have time to read it all right now but there seem to be some good tips for restoring the tools, future storage ideas and precautions, etc


Keep us posted on your findings and don't hesitate to start a new thread for cleaning rust off tools . There are bound to be a lot of good tips here.
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Old 06-25-2009, 05:56 PM   #25
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Everything rusting badly in the storage room


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GAZA , Scrap the mothballs but save the box and do some backgorund checks.
I just read up on this and it turns out some moth balls and moth crystals contain paradichlorobenzene ...Apparently there are 2 types..., napthalene and those which contain chlorine, so this could be producing hydrochloric acid which could be your culprit or at least part of the issue.
I have flicked the Napthalene flakes for now, however I appreciate your following it through for me.
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Old 06-25-2009, 06:00 PM   #26
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Everything rusting badly in the storage room


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Originally Posted by Chemist1961 View Post
Out of curiosity, did you use vinyl flex pipe or metal for the new fan and is it a metal fan and box.
If you are venting a corrosive and draw this mix through there you will also want to keep an eye on the fan for corrosion...
Good point, however I would have thought all electric motors in exhaust fans are made from metal parts. This particular fan that I have used is one that is specified by the building codes here in Queensland AUS for ventilation purposes. I will keep an eye on it though, thanks for the tip.

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