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Ferric chloride 40%. Used for Etching Damascus Blades & Steel
General etching procedure
- Degrease blade with acetone.
- Mix ferric chloride with distilled water (one part water, two parts acid) -OR- mix 60% ferric chloride and 40% white vinegar. Carefully pour solution into plastic (or pyrex) dish (some folks also use a PVC Pipe that has been sealed on one end as a contanier for etching).
- Submerge the blade in the acid mixture, and let sit for a few minutes.
- Remove to see the etched pattern.
- Rinse the blade with warm water and (if you want a deeper etch) put it back in the acid untill the desired etched depth is achieved.
- Etching time required depends on how deep you want the etch to be and what kind of contrast you want.
- On the last dip, remove blade from acid and allow the black oxidation to stay on the blade rinse in warm water & liberally cover the blade in baking soda to neutralize the acid (washing it in Windex will also work to neutralize the acid)
- Dry the blade off, and wipe down with WD-40. You can also sand off the oxidation with 600 grit wet/dry sandpaper, if desired.
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