General Refractories Company

Sudarsan C Samanta

A coherent, rigid, heat stable, low density, low thermal conductivity, strong, impact resistant, water repellant thermal insulation material, having an average maximum linear shrinkage of 2% or less at temperatures up to 1200.degree. F., made from expanded perlite, alkali metal silicate solution, kaolin clay, and organic fiber. Additions of methylcellulose and polydimethyl silicone liquid enhance the insulation material's strength and water repellency characteristics. The material may be cured and dried at a temperature of about 170.degree. or less for a period of about 24 hours or more without humidity control.

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Plymouth Meeting, PA, United States of America

Sudarsan C Samanta