Roberson's Gum Ammoniac
Natural gum size made to a traditional recipe.
Gum Ammoniac is useful for gilding in small areas and, more generally, in detailed gilding. Two applications are needed if gilding on absorbent paper.
Raised areas can be developed by using several layers and allowing each layer to dry first. Gum Ammoniac can be reactivated by breathing on the gum surface.