> CLR contains phosphoric acid. Acids are very good at removing
> oxides because they chemically remove the oxygen from them. Acids also
> remove metals. The reaction is fairly slow for iron but very fast
> for lead (solder). Don't even ask me about my first hand knowledge
> of this fact!!
>
> Roland
>
Some revisionism here! What I meant to write was:
The reaction with PHOSPHORIC acid is fairly slow for iron...
For some acids (like HCl, e.g.) is quite fast- I don't recommend using
HCl in your radiator.
Roland
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