Shin-Etsu PP Film type R is the world's first polypropylene film ever to have been successfully developed for commercial-industrial use. It is based on the inflation method.

The major feature of this film is its uniform net-like structure which facilitates smooth oil impregnation. As a result, it has been possible to achieve an all-film type capacitor that does without the paper layer of the conventional type of paper-and-PP film structure of high-voltage capacitor dielectrics, thereby, achieving a more compact, large-capacity and high-reliability high-voltage capacitor.

Shin-Etsu Film has earned itself the highest acclaim for its achievements from the industry and been able to maintain a firm position with its product as the main material in this field both in Japan and abroad.

Shin-Etsu PP Film type S, a smooth-surface type film is used as a general impregnation type.

Metallized PP and PET Film type M is metallized with zinc, aluminum or alloy on the film substrate. This Metallized Film is extensively used for low-voltage capacitors.