Ko te pepa kapia epoxy he laminate i whiwhihia ma te pehi wera i te kapia phenolic kore-epoxy me te kakahu karaehe alkali-kore mo te hunga hiko, a he nui nga taonga miihini me te dielectric, a he pai mo te whakamahi hei waahanga hanganga whakamarumaru i roto i nga motuka me te hiko. taputapu.Ka taea te whakamahi i roto i te taiao makuku me te hinu whakawhiti.