Kua noho matataki i te whakapai pākati, ka whakamahi ngā pūtē whakapai pākati ake ki te hā o te rā o ki te hangarau ultrasera hei whakapai i ngā mātauranga thermoplastic. E pai ana mo te whakahoki i ngā kawe motokā, te whakatupu tohu, me te whakahaere pakiri, e tuku ana ngā pūtē i ngā whakauru wehewehe waimātau me ngā hoa āwhina tika mo ngā taupae whakapai rerekē. Ko te whakahoahoa whatitika me ngā paetukutuku tiaki (tiaki i te whakarara iti, ngā kawe whakapaetiti) ka whakanuia i a rātou mo ngā tono pūkenga tahi me ngā tono akoranga.