Why are copper products oxidized and copper green?

- Oct 16, 2019-

Why are copper products oxidized and "copper green"?


When copper comes into contact with water and oxygen, it will “rust”. The surface of the copper decoration will produce a layer of green matter. Usually we call it “copper green”.


It is not difficult to understand most of the copper crafts, the copper ornaments are all green, especially in some ancient buildings and temple copper decoration, there is no modern craft paint color,There will be a layer of green. In some large copper pieces such as Tong Bao Ding, bronze statues such as the Statue of Liberty are green.



How to brighten copper product:


1. Wipe with toothpaste or scrub with hot rice soup to restore luster.


2, to protect the luster of copper jewelry, can be thinly coated with a layer of nail polish


3, salt and vinegar mixed into a cleaning agent, use it to wipe copper jewelry, can make a long time new.


4. Keep the air dry when you save it.