NG Capacitors CAP-RUN_RND-NGM run capacitor are manufactured with a dielectric material that consists of two sheets of polypropylene film. Each one with a thin layer of vacuum deposited metal on one side. Metals are selected according to final application and can be either aluminum/zinc or zinc. Both films are acting as electrodes in the capacitor but, because this metal is just a few hundred angstroms thick, it has a very limited current carrying capability at any single point in the dielectric. To compensate for this limitation, the entire edge of each electrode is bonded by a metalized end spray that has a relatively high current carrying capability. The end spray serves as the termination point for the internal connections of the capacitor. This construction minimizes the current at any single point of the electrode. The current capability is enhanced by soldered or welded end terminations. - NG capacitors CAP-RUN_RND-NGM run capacitor are manufactured with a dielectric material that consists of two sheets of polypropylene film.