And yet another Gunong, laminated blade

[Ferguson]

Originally Posted by mross

Steve,
Did you etch this one? If so what procedure did you use?

Yes.
1. Polish with wet-or-dry sandpaper lubricated with Windex up to 800 or 1000.
2. Rinse, dry, then clean with Acetone.
3. Etch with Ferric Chloride diluted 3:1 with water. I use Radio Shack Circuit Board Etchant.
4. Neutralize first with vinegar, then with Ammonia based window cleaner (or ammonia), then with baking soda.
5. Rinse well, dry, then burnish lightly with 0000 steel wool lubricated with oil.

Steve