7696 Route 31
Lyons NY 14489
Voice: 315.946.1213 Fax: 315.946.4456
www.caswellplating.com
CASWELL REPROCHROME® PLATING INSTRUCTIONS
Caswell REPROCHROME® is a unique Cobalt/Tungsten plating solution that provides a bright,
chrome-like plate onto copper, brass, nickel, steel and most other ferrous and non-ferrous metals.
For best corrosion resistance and shine, we recommend plating in copper, then nickel before
REPROCHROME® plating.
REPROCHROME® comes pre-mixed and ready for use. Just add REPROCHROME® brightener
at the rate of 3ml per 1000ml (0.40 fl oz per 1 Gal) of REPROCHROME® Starter (but don’t add it
yet)
Operating Instructions:
1. Use HDPE or PVC plastic tank. Clean and rinse thoroughly with DISTILLED WATER
before use.
2. Install stainless steel anodes and maintain at least a 1:1 ratio of anode surface area to
part surface area.
3. Install pump agitation to keep solution moving.
4. Pour REPROCHROME® starter into tank to required level.
5. Heat bath to 140 deg F with a stainless steel or titanium heater plus thermostat.
6. Plate a cleaned dummy part (scrap metal as big as you can find that will fit in the tank) at
5V DC for 5-15 mins.
7. Remove dummy and add REPROCHROME® brightener at the rate of 3ml per 1000ml
(0.40 fl oz per 1 Gal) – no point using your brightener on the dummy part.
8. Install part to be plated.
9. Plate at 0.07 amps per square inch of part surface area at approx 5 volts.
10. Plate for 1-2 minutes
Some shadowing and discoloration is normal in a brand new bath. Plate dummy parts until an
even color is achieved. This might also occur if bath is not used for periods of time.
Solution pH is 9.9-10.2. Read pH at 140F with pump agitation.
Troubleshooting:
Problem Solution
No plating in low areas or patchy plating Add REPROCHROME® Starter to replenish.
Increase current.
Dark Deposit Add REPROCHROME® Starter or adjust pH
Light Deposit Increase temperature and/or current
Milky Solution with plating defects pH out of range or replenisher additions too
large. Add water or replace solution.
Theoretical bath life is 50 sq ft per 1 gallon of REPROCHROME® bath.