FACT
U.S. Borax's special quality grade
20 Mule Team® ammonium pentaborate is used in the preparation of both wet and dry electrolytic capacitors. It is a component of electrolytes developing a thin oxide film on aluminum foil when an electric current is applied, as well as for inserting into an aluminum container during the final assembly of capacitors. The purity of the borate components is essential to the production of high-quality capacitors.