Interesting Toradar Barrel

[archer]

Hi Richard,
I use Ferric Chloride from EBay it comes in various forms see photos. I use a spray Acetone used to remove foam insulation Cleans thoroughly and dries fast. I mix the crystals with distilled water. A weaker mixture is normally preferred. This time it was stronger and applied several times. Downside of the repeated strong applications is gets too dark requiring light sanding under running water or a mild abrasive to change the tone. Important prep and degrease til there is no pooling acid mixture should cover and stay wet. Strip off with an Ammonia at this point you can use acetone and continue etch or dry rinse with water or baking soda and water and dry. Note after light water and1000 grit both the various metals and spirals are evident. I don't think the barrel was ever etched in a past life so hopefully the contrast will come out.