PARTING COATING FOR MODEL EQUIPMENT Russian patent published in 1995 - IPC

FIELD: casting. SUBSTANCE: vat residue of preparing hydrated fuel is used as a base of said coating. Products of oil processing, alcohols and fat acids are added to this base. Extracts of selective refining of petroleum oil distillates or of mazut, or alcohols, or unsaponifiable compounds having 6-22 carbon atoms, or fat acids being side products of their production of paraffin or of sebacic acid production which represents mixture of saturated and unsaturated acids may be used as mentioned above additives. EFFECT: improves quality of casting. 2 tbl