Polyester film capacitor paper soft composite zojambulazo ndi insulating material mankhwala opangidwa ndi wosanjikiza kumtunda kwa zigawo ziwiri za capacitor pepala yokutidwa ndi poliyesitala wokutira filimu zomatira, amatchedwa PMP.Chojambula cha polyester film capacitor paper soft com posite chojambulacho chili ndi zida zabwino za dielectric komanso mphamvu zamakina apamwamba, ndipo ndi yoyenera kutsekereza gasket kwa ma transformer osiyanasiyana apamwamba kwambiri.
