Perlite insulation board and method of making the same

Details Perlite insulation board and method of making the same Perlite insulation board and method of making the same

C - Chemistry, Metallurgy

04

B

261/76

C04B 28/14 (2006.01) D21J 1/20 (2006.01)

Patent

CA 1065350

PERLITE INSULATION BOARD AND METHOD OF MAKING THE SAME Abstract of the Disclosure A perlite insulation board is disclosed herein and includes, as conventional ingredients, expanded perlite, organic fiber and binder, the perlite, being the largest single ingredient, by dry weight, in the board. The in- sulation board also includes gypsum in an amount less than the perlite but preferably in an amount sufficient to form a gypsum matrix throughout the board. A method of making a perlite insulation board of the general type just described is also disclosed herein.

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