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TECHNOLOGY FOR THE PRODUCTION OF ADHESIVE FOR ADHANCING
PAPERS AND RUBBER TO METAL
Stick the paper, label and the like in an ordinary way. on a smoothly polished metal surface, as it is known, it is very difficult: the paper very quickly disappears. This inconvenience is easily eliminated by the following method: prepare a concentrated aqueous solution of soda, thoroughly moisten the metal surface with a heated solution; then wipe it dry with a rag, cover it with a thin layer of onion juice (cut the onion in half and rub it on the place), additionally paste on the paper, smeared with the following glue: take the soft wheat flour, add as much sugar to it, pour this mixture with cold water and mix it additionally until thick cream, then brewed with boiling water and stir until transparent. The paper glued in this way is held so tightly that it can only be scraped off with a knife.
To glue the rubber to the metal, the following glue is prepared: we dissolve the shellac ten times the number of strong ammonia.