1. The redox potential of the reducing agent must be sufficient to reduce metal ions and precipitate the metal.
2. The plating bath needs to be stable and inactive when not in use. It will only start to act quickly to precipitate the metal coating when the catalytic plating surface is in contact.
3. The precipitation rate must be controlled, pH value, and temperature can adjust the precipitation rate.
4. The precipitated metal must have a catalytic effect to perform self-catalytic electroplating, so that the coating can be continuously formed to achieve the required coating thickness.
5. The reaction product of the plating bath must have the same performance as the brick plating bath, so that the life of the plating bath can be long.
6. The cost of chemicals requires choosing cheap and suitable raw materials.