Adding aluminium and slag surface tension, liquid aluminum good separability, slag is dry, loose, easy to dry, grilled. This product does not contain sodium, sodium almost insoluble in aluminum, alloy in sodium, the solidification process of sodium adsorption on the surface of the dendrite or grain boundary. Hot working, sodium form liquid adsorption layer on the grain boundary, the formation of sodium craze, the so-called "sodium brittle". If magnesium silicon exists at the same time, the magnesium would snatch silicon, precipitate free sodium, produce sodium embrittlement.

Usage: used for avoid sodium aluminum alloy smelting, clear liquid aluminum surface scum, near the surface of slag adsorption.