Ceramic launders are refractory shaped pieces manufactured on the basis of calcium-silicates joined by hydraulic bond. Materials SILKON 130, SILKON 130-1 and SILKON 150 for their production are used. The launders are non-wetted from melted iron (Al) or its alloys. The calcium silicate launders for use in temperature of up to 1000°C are determinate.
It is recommended to maintain the surface of the launders by special protective boron-nitride coating MASTER BN to ensure their long life and well performance.