Jim,
Parker barrels were black and white damascus. I had success in using a commercial rust blue to get about 3 rustings and boiling, and dry cardings in the normal rust blue manner, then mixed a solution of 6 parts water to 1 part circuit board etch (circuit board etch is about 40-45% ferric chloride strength). I dowsed the rust blued barrel in the diluted solution above for 10 seconds and then flushed with running water while wet carding with 0000 steel wool. Repeat the rust blue (rust, boil, dry card) a couple times and then do the ferric chloride dilution in a 10 second dwell and wet card as before. Repeat as many times as needed for the desired finish.
I will say that more dilution of the circuit board etch may be desireable. Maybe 7 or 8 to 1.
|