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Old 03-05-2010, 11:56 AM   #1
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cleaning calcium deposits on skin

We have large areas of calcium deposits on the outside of our 1976 ambassador - how they got there is a long story.
Any ideas on how to remove the calcium without damaging the skin? We have tried vinegar - long sloooow process.
thanks
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Old 03-05-2010, 12:33 PM   #2
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Meguiars makes a product that sill supposedly remove hard water spots. Have no idea if this will work - it's hard to find - and I can't remember offhand where I've seen it but should be possible to order from the I-net. Seems to me I may have seen another product that claims to do this in Bed, Bath & Beyond but not 100% sure of this.
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Old 03-05-2010, 01:00 PM   #3
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camphost...

post PICTURES...

here are some relevant threads and links...

http://www.airforums.com/forums/f441...its-36047.html

http://www.airforums.com/forums/f441...ots-30563.html

http://www.airforums.com/forums/f441...ent-12529.html

howz the original plastikote ???

is there ANY left?

u may be seeing lattice style corrosion instead of water spotting.

ANY acid solution (vinegar) that will work GENTLY will be slow.

stronger acids will eat/etch/degrade the surface.

mechanical agents (clay) will work fine but IF the plastikote is gone will 'polish' the aluminum in undesirable ways.

cheers
2air'
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Old 03-05-2010, 03:55 PM   #4
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In Canada there is a popular removal product called "CLR" (Calcium, Lime, Rust). I'm not sure if it's available where you are, but for about $10.00 it would be worth a try.

Kevin
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Old 03-05-2010, 09:07 PM   #5
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Can CLR be used on aluminum??
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Old 03-05-2010, 09:12 PM   #6
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The website specifically says not to use CLR on aluminum.
Jelmar | All Kinds of Dirty, One Kind of Clean
Quote:
Do not use CLR on wood, clothing, wallpaper, carpeting, marble, terrazzo, natural stone, colored grout, painted or metallic glazed surfaces, plastic laminates, Formica or aluminum.
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Old 03-05-2010, 09:40 PM   #7
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I thought Id read that about CLR. Thanks Richard for protecting our aluminum
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