Oxalic Acid
i've used oxalic acid to clean up fastenings, comes in a liquid or crystals. I used the crystals so i can change the strength depending on the nature of the job. Got them from a pharmaceutical suppliers i found in Auckland. I just left them in a container with a acid/water mix over night, almost looked like new...
Regards Rob
Last edited by Robbie.g : 04-06-2010 at 01:49 AM.
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