150 Antique Bronze Blacken Agent
★Use and characteristics
1. It is Black oxidation agent suitable for brass, bronze, copper and electroplating, little corrosion on the base metal.
2.It can oxidize the copper layer in a very short time, significantly improve the antique decorative effect.
3.The color turns from light brown to brown then, black
★Solution composition and operating conditions
1. Operation conditions:
Antique blackening agent: 300ML/L, hydrochloric acid concentration: 1 - 3 mL/L (when in need of special black, only need to add).Soak time: 30 seconds (-3 minutes, can meet the requirements of the blackness)
work piece swing: to ensure uniform blackness, filtering: be sure to use a black mass, single core filter.
Temperature: at room temperature (20℃- -30℃) can be normal black, but black in the above 35 degrees, the firmness of the film more excellent.
2.Product catalog: Antique Bronze blacken agent