Remix 65 Slag remover is a substance used in steelmaking or casting to remove impurities from molten steel or iron. The general deslagging agent serves as a covering and heat preservation mechanism. Its basic operation is to absorb and gather different oxides throughout the smelting process in order to simplify removal. Remix 65 Slag remover has chemical qualities that are stable and won't pollute metal solutions further. When heated, slag remover expands or melts. The specific gravity is low after expansion, creating hollow pores.