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Original Message
Cramolin...
Posted by 1973shovel on February 12, 2020 at 10:22:33:
...used to sell a kit back in the 1990s with vials of red and blue liquid. The Red was supposed to remove oxidation. I suspect it's similar to, or the same as today's Caig formula.
According to my instructions, the Blue, (which was applied after cleaning with the Red), "...provides microscopic layer of oil to prevent any further oxidation. Because of its low surface tension, the liquid separates and allows contact when the two contact surfaces touch."
I recall reading somewhere (Stereophile?) not to use the Blue, so I never did. I suspect that oil would add a bit of resistance, however slight, which is exactly what we're trying to clean away in the first place, in the form of oxidation.