A Google search yielded this:
1. Caswell Anodize & Chrome Stripper
2. 12 volt manual battery charger
3. Stainless steel cathode (I used a 3 x 5 piece of 1/8 thick 316 s/s)
4. 2 x 5 gal pail (or something large enough to submerge the part in)
5. Nitric Acid
6. Stainless steel pot (large enough to submerge part)
7. Tap water
8. SAFETY GEAR (goggles or shield, rubber gloves, apron, ect...)
1. Mix the Caswell Anodize & Chrome stripper in one of the 5 gal pails (room temp).
2. Fill the other 5 gal pail with water (for rinsing).
3. Connect the negative lead of the battery charger to the stainless steel cathode and suspend the cathode in the stripping solution.
4. Connect the the positive side of the battery charger to the chrome plated part which is to be stripped and suspend the part in the stripper solution (with the battery charger off).
5. Making sure there is no contact between the cathode and the part to be stripped, turn the battery charger on (I used the 2 amps setting to strip a paintball marker trigger).
6. Bubbles will form in the solution as the chrome is being stripped. Pull the part out from time to time and rinse it in the rinse pail in order to check the progress. (I found it difficult to know when the chrome was completely off so I can not provide an exact duration but I would estimate about 10 minutes).
7. Once the chrome is stripped, the nickle which is left behind must be stripped. Mix a 50% Nitric Acid and water solution into the stainless steel pot. CAUTION : Always mix acid into water, never water into acid. Mix slowly.
8. After rinsing the stripped part in the rinse pail, submerge it into the Nitric Acid solution. It should turn colors (almost black) as the nickle and copper (which is under the nickle) is being stripped off. CAUTION : Do not breathe fumes and strip in a well ventilated area. Dispose of waste accordingly.
9. The nickle and copper are removed when the color fades from black, bronze to dull grey (this is the aluminum etching - I think). Rinse the part and re-polish or treat as desired.
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