Ulusi wagalasi waufupi wa 30% wolimbikitsidwa, modulus yopindika kwambiri, kukhazikika kwabwino kwambiri, kukulitsa kutentha kochepa, kusintha kwa warpage kochepa, kukana kugwedezeka bwino, kuyenda kosasunthika kosungunuka, koyenera zigawo zomangidwa bwino kwambiri, kutsatira RoHS.