Re: Caustic Soda Etch
Thanks M_D,
I have just finished a run as follows:
1. Polish to high shine
2. Short rinse in solvent based degreaser to remove polish residue. (I can't buy Caswell degreaser due to air freight)
3. Soak in warm Simple Green and agitatate until water sheets ok
4. Distilled water rinse
5. Anodize
6. Spray rinse
7. Suspend in distilled water tank for about 5 minutes.
8. Spay rinse
9. Dye at 140 deg
10 Seal at 180 degree
The result using violet dye is perfect. Perhaps the baking soda was the culprit.
|