FIELD: wood-working industry. SUBSTANCE: when processing technical-destination wood materials, the latter are subjected to deep evacuation and impregnated under pressure first with aqueous solution of metal salts with concentration at least 10-12% and then with solution of sodium hydroxide-sodium silicate mixture, sodium silicate concentration being at least 13-15% and silicate modulus 1.0-1.1. Impregnated wood materials are dried. EFFECT: enhanced efficiency of process. 2 tbl
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