Refractory sheet type RSLE-57 is a low-thermal-expansion, high-strength reinforced silica matrix composite. Designed for use as a high-strength insulator in induction hot-press applications, these sheets are suited for any application that requires a material with superior hot strength at temperatures as high as 2192°F (1200°C). RSLE-57 maintains its properties up to 3002°F (1650°C) provided there is no significant fall in temperature. This material will exhibit surface glazing while retaining its strength at these elevated temperatures. RSLE-57’s very low thermal-expansion coefficient and high density combine to give it thermal shock resistance not found in other structural ceramic composite materials. These properties give it a longer life in most hot pressing and induction heating applications.
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