The covering agent is mainly used to cover the molten steel surface of ladle and tundish in the process of continuous casting, 

to avoid excessive temperature drop of molten steel during transportation and casting, and cold steel on molten steel surface.

Function：

Thermal insulation to prevent crusting of molten steel surface

Insulating air to prevent secondary oxidation of molten steel

Absorbing non-metallic inclusions on the molten steel surface and purifying molten steel

Main physical and chemical performance index: