Performance features:
It can form a layer of dense film on the surface of aluminium liquid to reduce burning of aluminium. After smelting, spread the covering flux on cleaning liquid can prevent aluminium liquid from aspirating and mingling again.

Use method:
1. When aluminium ingot has been melted and flattened, spread with covering flux to reduce aluminium burning.
2. After refining of aluminium liquid, skim slay once again, then spread the required covering flux on the surface of aluminium liquid with iron shovel.

Technical parameters:
1. Volume of 0.5~1.5kg per square meter of furnace surface area.
2. Operating temperature: 700ºC~740ºC.

Technical indexes:
Moisture<1.0%, Grains-18 mesh.

Packaging and storage:
It is 2kg for each package and 20kg for each box, which shall be stored in a dry place and ventilated place. The storage period is one year if plastic bag are not damaged. It can be further used when it is ground into powder and dried under the temperature of 100ºC.