Glue tempera
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Description
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. Glycerin or other humectants were often added to reduce cracking. Formalin was sometimes added to produce a hard insoluble film.
Resources and Citations
- D. van der Reyden "Identifying the Real Thing" www.scmre.org/analysis.htm