apricot gum definition

Apricot gum is a transparent gum that comes from apricot trees.  Fruit gums, such as apricot gum, have been mentioned in ancient formulas for use in varnishes and paint additives.  Gums can be put into water for awhile if they dry; this method causes the gums to expand and transform into a gelled material.  Cherry gum is the most frequently mentioned gum used in formulas for artists in the past.