Refractory
Almost similar to thermal insulation, refractory is commonly used in areas where protection from extremely high temperatures of above 1000 degree Celsius is required. Special materials (fire brick / masonry system or castable of special concrete) is used in Refractory Work.
Protection of high temperature process areas with Refractory category is normally needed in Furnace and Boiler, or in industry like Power Plant, Cement Plant, Pulp and Paper, Chimney, Ceramic Industry, etc.