Production method, casting moulds, cores or feeders and kit and method for production of a metallic casting

A method of producing an article selected from the group consisting of

• casting mold,
• core
• and feeder,
• by repair or completion of a corresponding defective or incomplete article, having at least the following steps:
• (S1) producing or providing in a foundry:
• a first component (A), comprising a first binder component (b1) of a binder system and an amount of a first mold base material
• and, spatially separated therefrom,
• a second component (B), comprising a second binder component (b2) of the binder system and an amount of a second mold base material
• wherein
• the first binder component (b1) and the second binder component (b2) are suitable for chemical reaction with one another and for curing of a mixture of the first component (A) and the second component (B),
• wherein the first binder component (b1) and the second binder component (b2) are each present as constituents of the first component (A) or the second component (B) in spatially separate containers,
• (S2) mixing by contacting at least the first component (A) and the second component (B) that has been produced or provided spatially separately therefrom in a particular mass ratio, so as to result in a self-curing molding compound,
• (S3) shaping and curing the self-curing molding compound that arises in step (S2), so as to result in a cured molded product of the first component (A) and of the second component (B), which forms a region of the article on conclusion of the production method.