| 摘要 |
A wood substrate having good flame resistance characteristics while substantially maintaining its adherence characteristics for asphalt products. One surface of the wood substrate has a coating of an inorganic soluble silicate impregnating the wood substrate and forming a firm bonding with it. A process which is disclosed comprises: (a) coating at least one surface of a wood substrate with a concentrated solution of an inorganic soluble silicate, and (b) drying said coating as to leave on said surface the inorganic silicate impregnating the wood substrate and form a firm bonding with the wood substrate.
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