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TECHNOLOGY FOR THE MANUFACTURE OF CHROPIC ADHESIVE
This adhesive is the chosen compound for gluing objects exposed to water .
It is prepared as follows: 5 weight elements of good wood glue are dissolved on low heat in 10 weight parts of water and a solution of bromide (potassium dichromate) is added to it, for which 1 share of bromide is dissolved in 5 parts of water. Carefully mixed solutions are poured into a tin, which allows the whole mass to cool. Before use, they dissolve a certain amount of it in a water bath and also in a hot form cover evenly with a thin layer the parts to be glued, after which they are pressed with a vice, they are also exposed for several hours to light. Under the action of light, the glue bonded to the chrompeak loses its ability to dissolve in water, so that objects glued together with such glue do not fear water at all.