Glue tempera

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A water thinned protein-based paint that dries to a water resistant film. Glue temperas use casein or gelatin often as an emulsion mixed with oil. These paints dry to a semi-matt appearance by the evaporation of water. Glycerine or other humectants were often added to reduce cracking. Formalin was sometimes added to produce a hard insoluble film.

Sources Checked for Data in Record

  • Website address 1 Comment: D. van der Reyden "Identifying the Real Thing"