FIELD: composition materials. SUBSTANCE: mass has additionally the aqueous suspension of collagen leather fibers at the following ratio of components, wt.-% aqueous suspension of mineral fibers 40-95 (as dry matters), and aqueous suspension of collagen leather fibers (as dry matters) the rest. Except for, mass can contain additionally binder at concentration 0.1-5% of total mass of dty fibrous componnets. Mass is used for heat insulation, sound absorption and vibration-proof insulation. EFFECT: decreased cost, improved ecology, broadened utilization. 2 cl, 2 tbl
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