Copper slag is a by-product of copper extraction by smelting. Copper slag is mainly used for surface blast-cleaning. Abrasive blasting is used to clean and shape the surface of metal, stone, concrete and other materials.

Metal-refining industry, waste, by-product
Shiny or dull, dark brown to black, irregular particles
Medium performance abrasive
Tends to be dusty and shatter on impact
Limited use for ultra hibuild coating removal