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ZIRCAR Refractory Sheet Type RSLE-56 Moldable is a high silica fiber reinforced ceramic composite material that is easily cut and formed into flat sheets in addition to a wide variety of simple and complex shapes. When dried RSLE-56 Moldable becomes a hard rigid structure. Further heat treatment or exposure to process temperatures significantly increases the physical strength of this material.
RSLE-56 exhibits a very low coefficient of expansion 1.0 x 10-6 °C which provides remarkable resistance to the thermal shock up to 1200°C (2192°F) in an oxidizing atmosphere and permits its use with rapid variation in temperature in that zone. Beyond 1200°C (2192°F) it transforms into a crystalline structure, while maintaining its properties up to 1650°C (3002°F) providing that there is no significant fall in temperature. At temperatures above this the material will exhibit surface glazing.
Engineered and produced with low thermal expansion raw materials RSLE-56 exhibits greater thermal shock resistance than moldable alumina matrix composites. RSLE-56’s binder is locked in place and will not separate from its supporting fiber reinforcement resulting in an homogeneous structure throughout the material. RSLE-56 is 100% inorganic and once dried undergoes little or no outgassing.