Hoʻolaha ka mea nucleating agent i ka resin e crystallize ma ka hāʻawi ʻana i ka nucleus crystal a hana maikaʻi i ke ʻano o ka palaoa aniani, no laila e hoʻomaikaʻi ai i ka rigidity o nā huahana, ka wela distortion, ke kūpaʻa o ke ana, ka ʻike a me ka luster.