FIELD: foundry. SUBSTANCE: binder is characterized in that it contains carbamide and formaldehyde condensation product used as carbamidefuran oligomer. The above-mentioned condensation product is modified by furfuryl alcohol, with molar ratio of carbamide formaldehyde: furfuryl alcohol being within the range of 1:(1.57-1.70):(0.47-0.50). Phenolcarbamidoformaldehyde oligomer of binder contains carbamide, phenol and formaldehyde condensation product with molar ratio of 1:(2.62-2.80): (10.0-10.2) and further contains furfuryl alcohol, with carbamidofuran oligomer, phenolcarbamidoformaldehyde oligomer and furfuryl alcohol being used in the ratio of (39-41):(39-41): (19-21) parts by weight. EFFECT: improved quality of binder by reduced content of nitrogen reduced refuse by decreased gassiness of ingots, reduced core refuse by increased strength properties of mixture, reduced amount of formaldehyde and phenol in binder to improve sanitary conditions of labor. 5 tbl
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