Cesco Solutions, Inc. Ferric Chloride – 64 oz High Concentration Chloride Solution – Wide Applications – Ideal as Etchant Jewelry Making, Coagulant for Water Treatment

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The product etches copper beautifully esp when citric acid is added. It works on brass as well

just what was needed for Damascus knives.

Worked great on brass plates.

I use this product for etching/darkening knives, works like a charm especially in pattern welded steel, but also to reveal temper lines in hardened steel, useful when restoring vintage axes or blades. My order was lost in the mail to no fault of the seller, I reached out to them explaining the situation and a replacement was at my door in a matter of days. Thank you Cesco, you earned a loyal customer.