A process for producing a board suitable for use as a wallboard or a ceiling panel is provided, comprising: (a) providing a substrate comprising a first facer; (b) applying a slurry comprising a cementitious material on the substrate; and (c) providing a second facer above the slurry, wherein at least one of the first and second facers further comprises a laminate layer.

 
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> QUATERNARY AMMONIUM BORATE COMPOSITIONS AND SUBSTRATE PRESERVATIVE SOLUTIONS CONTAINING THEM

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