Designed to blacken nickel-plated workpieces, it forms a uniform black film on the nickel surface, and it is also excellent in antique tones by vibration polishing.

Designed to blacken nickel-plated workpieces, it forms a uniform black film on the nickel surface, and it is also excellent in antique tones by vibration polishing.

It is suitable for electroplating nickel and electroless nickel plating. The black film is black and bright. Compared with black nickel at room temperature, it has strong penetrating ability and uniform film layer. It is especially suitable for bright nickel plated parts. It is widely used…