FIELD: manufacture of insulating material. SUBSTANCE: composition comprising polyether blend, polyisocyanates, amine-type catalysts further contains non-hydrolizable surfactant in the amount of 1.0 -1.5 parts ( by weight) per 100 parts of polyether blend, molecular weight 290 and water in the amount of 0.4-0.5 parts per 100 parts of polyether blend. EFFECT: improved quality. 1 tbl
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