Qalabka korantada isku dhafan ee korantada wuxuu ka samaysan yahay lakabyo badan oo isku dhafan oo heerkul sare leh oo lagu daboolay filimka polyesterka.Waxay leedahay sifooyin farsamo oo wanaagsan, guryaha korantada, hoos u dhaca, hygroscopicity iyo caabbinta kulaylka la isku halayn karo.Waxaa inta badan loo isticmaalaa transformer-ka qalalan ee sare iyo hooseeyo.Dahaarka u dhexeeya gariiradda, waxa loo isticmaali karaa sidii dhululubo dahaaran iyo dahaadhka dhamaadka halkii looxa epoxy resin board, phenolic resin board.
