How to passivate copper at home

The operation method of copper passivation treatment is very simple, and it can be completed at home;

In terms of equipment, you only need to prepare a few plastic bottles or boxes;

If you buy potions, you can search Baidu for chromium-free passivation solution to find copper @ ms0423 &; You can find a merchant to buy it;

The specific operation method is:

① Clean the impurities such as oil stain on the surface of copper →→ ② Soak the cleaned copper in passivation solution for more than 5 minutes →→→→→→→ ③ Clean it with clear water and dry it! ! !

Precautions: the potion must fully contact with the workpiece!

If you still don't understand, you can consult a technician through the homepage of Baidu account for details.