... defects such as slag, gas, which is helpful for molten iron (steel) purification, improve castings quality, ... 20% - 30%.5. The slag is brittle, does not glue bag, which will improve lining packing life6. ... waterproof, moistureproof, ripstop. physical and chemical indexes (For casting iron using)Table 1: compositions compositions(element)loss ... >101300-15501.1-1.35.5-6.06-8≤2.6% slag remover for casting