FIELD: foundry. SUBSTANCE: suspension contains product of partial ester interchange of oligoethoxysiloxanes of polyethylene glycol used as organosilicon binder, with weight part of components ratio of 1.0-2.0%. Composition of suspension, % by weight: product of partial ester interchange of oligoethoxysiloxanes of polyethylene glycol 28.0-40.0; mineral acid 0.45-0.65; refractory filler the balance. EFFECT: increased efficiency and improved quality of ceramic casting molds. 3 tbl
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