michael78651
06 Jan 2016 11:09:41pm | re: The Dealers' Guide To Chemical Restoration Of Postage Stamps
"Oxidation" is an incorrect term. Oxidation is the absorption of oxygen by certain metals like iron. There is no metal in the orange inks. The correct term is "sulphurisation".
As for cleaning stamps, I find that using ammonia works much faster, and is much better at achieving the desired results than using dish detergent. Of course everyone has their favorite methods, but give a stamp an ammonia bath and see the results. Always try it first with a cheap, disposable stamp.
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