Trivalent black chromium plating additives HN-902 series
Product introduction:
Application and advantage
1. Green products without hex chromium and simple waste water disposal
2. Even and esthetic coating with good covering power and dispersive ability
3. No organic solvent in the plating solution, excellent tolerance against sulfate and chloride ion
4. It won't cause bad plating result when power off, the deposition rate is faster than that of hexavalent chromium plating.
5. Adopting graphite anode can improve the quality and stability of the bath.
Bath composition | working condition |
| HN-904 make-up salt | 480-520g/LTrivalent chromium plating additives
Product introduction
A. White trivalent chromium plating
Item: HN-302 serie
Application and advantage:
1. Green product without Cr+6 and simple waste water disposal
2. The coating color is uniform and bright with good covering ability and distribution
3. the plating layer is whiter, harder and of higher wear resistance compared to traditional trivalent chromium plating
4. Current efficiency can achieve 30%, faster deposition rate than that of Cr+6 chromium plating
5. The plating bath is stable with good tolerance against impurity, which is a better alternative to traditional Cr+6 process.
Bath composition | working condition | | HN-302 stablizer | 40-60 g/L | | HN-303 complexant | 80-120 mL/L | | HN-304 make-up salt | 380-420g/L | | HN-305 wetting agent | 1-3 mL/L | | Cr | 23-27 g/L | | proportion | 26-30°Be' | | Temperature | 25-35 °c | | pH value | 2-3 | | Cathode current density | 6-22 A/dm² |
B. Black trivalent chromium plating
Item: HN-902 serie
Application and advantage
1. Green products without hex chromium and simple waste water disposal
2. Even and esthetic coating with good covering power and dispersive ability
3. No organic solvent in the plating solution, excellent tolerance against sulfate and chloride ion
4. It won't cause bad plating result when power off, the deposition rate is faster than that of hexavalent chromium plating.
5. Adopting graphite anode can improve the quality and stability of the bath. |
Sur-precision Metal Technology CO, Ltd., One of subordinates of Highnic Group, is a large-scale enterprise specializing in electroplating additive production and technological development. It locates in central part of Nonferrous Metal Industrial Development Zone, Nanhai, Foshan city, Guangdong, China. The company has established a R&D team and introduced world-class leading facilities to develop new electroplating technologies. The whole product series cover various metal finishing additives, PCB speciality chemical and PVB phosphorus copper anode, automobile aluminum wheels, etc.
HIGHNIC holds the worldwide leading position in general metal finishing technology, AS HIGHNIC's production base, Sur-precision Metal provides a wide rang of metal finishing additives covering technologies for the entire spectrum of decorative and functional surface treatment. It is used for various materials form steel, aluminum and magnesium to engineered plastic. Our principle is to create a long-term partnership with customers under the efforts of professional knowledge, extensive experience and progressive core technology.
