Chromating, or chromate conversion coating, is the process of converting the plating layer to form a thin layer of chromate. For zinc-nickel chromates, the chromate layer acts as an inhibitor that improves the plated part’s resistance against corrosion.
Blue
- Jasco 988S1C1
- Suitable for both rack and barrel plating
- Hexavalent chromium-free
- Good corrosion resistance
- SCTC MI-180
- Cobalt-free
- Good impurity resistance
Yellow
- Jasco 988RSC
- Improved corrosion resistance
- Easier management of waste water
- NysTec NT-Chrome 97
- Very good corrosion resistance
- Yellow-purple-ish finish
Black
- 5W115
- Very good SST corrosion resistance
- Dark black appearance
- Easy bath control
- SCTC MI-380
- Good corrosion resistance
- Good impurity resistance
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