SR-KS series plastics are developed, using high quality fireclay,
bauxite and kyanite group minerals as raw materials, and using chemical and
ceramic bondings. Successive mild expansion during heating is their distinctive
feature, besides having good work ability, high
refractiveness, superior thermal shock and spalling resistance to those of castables. They are suitable for
the lining of large-sized heating furnace to give service lives as long as over
10 years.