Title: Ester Gums

Literature References: These are the glyceryl, methyl, and ethyl esters of rosin acids. They are made by heating rosin and the alcohol under pressure until condensation takes place. The gums are insol in water, but sol in amyl acetate, some oils, turpentine, carbon tetrachloride, etc.

Use: Instead of copal, damar, or kauri in making enamels, paints, cellulose lacquers, and particularly with tung oil for waterproof varnishes.

 

 

Status: This monograph has been retired and is no longer subject to revision or update.