1: High expanding ratio of about 15 to 20 times, and good heat insulation property.
2: Strong stickiness to the slag, and can effectively remove the floating impurities on the surface of the liquid steel.
3: Uniform particles, and no impurities. It can avoid the pollution of the liquid steel.
4: Only small amount of this agent is required for each application; it can spread quickly and does not stick to the furnace.