Quote:
Originally Posted by Brian Dudley
Multiple brownings before boiling is more like the "Parker process" that Gaddy wrote a separate article on. This process had a boiling in logwood and ferrous sulfate at the end.
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In one of the records of Dr. Gaddy's account of the Parker Process, it states 7-10 rustings before converting the rust. Then the process states to etch for 5 minutes, and then you should be able to rub off with a finger tip what the etchant removes. Does this sound right? That's a lot of bluing done before the etching, so maybe 5 minutes is required.
I've got two sets going now. One I'm doing this way, the other is being done the other way Dr. Gaddy articulated, which is rust, boil, etch, rust, boil, etch, etc. I tried it multiple ways, with different variations here and there, but for these I'm going to be very strict and do a comparison between the two processes.