Quote:
Originally posted by Zhentar
Thats a helpful post, thanks.
One question though: What is CLR?
I need to clean out the inside of the block, not get it real shiny, but I would like the outside to be shiny. I can get it there with sandpaper, but once its nice and shiny how do I keep it that way?
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Thanks for the compliment and hello to you in Madison. My wife is from Wisconsin, beautifull place in the summer and a stark contrast to the southwestern landscape I have grown up with.
Well I can readily answer 1 out of 2 of your questions. CLR simply stands for Calcium Lime Rust (remover, as it were). Its normal purpose is to remove the above materials from your kitchen and bathroom surfaces. Leave it up to the insane watercooling crowd to find many more applications for it.

Here is a product link:
http://doityourself.com/store/6571988.htm
As for preventing copper from tarnishing, I did some brief Googling and actually didn't come up with that much. Go figure. All I've got is some wild speculation on perhaps a mineral oil rub? Then I was thinking, if corrosion inhibitors prevent it in one context, maybe rub some hy-perlube on it and see what that does. Again, I emphasize I'm just throwing out a couple of things that flashed through my fevered little mind. Hopefully others may have something more definitive for you.