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Masking for Zinc cyanide plating bath
March 21, 2014
1. We are doing zinc plating using high and medium cyanide baths.
2. We have not been able to find a suitable masking medium that works under these harsh conditions.
3. I would be forever grateful if someone would be able to help me out.
- Anand, India
July 22, 2014
A. I have used Tolber M59012 masking extensively in KCN silver solutions with very good results. The operating temperature in the silver bath never goes north of 85 degrees and I have found the success rate is drastically reduced when using in solutions with a temperature greater then 120 °F. I believe if the masking is oven cured and reapplied with a second or third coat it could withstand greater temperatures.
Placerville, California USA