What is copper?
Copper is 99.9% pure copper, also known as "red copper", due to a freshly exposed surface of pure copper has a reddish-orange color.
Copper wire mesh is a soft, malleable and ductile nonferrous metal with very high thermal and electrical conductivity. As a result, it is popularly used as RFI shielding, in Faraday Cages, and in numerous electrical-based applications.
