I roto i te umanga hanga o ēnei rā, ko te hiahia mō he rauemi pakari, ngāwari ki te whakamahi, ā, he tino pai te mahi he teitei ake i ngā wā katoa. Te Waikawa Waikawa Metilururo (HPMC) he tāpiringa nui e whakarei ake ana i te te ngāwari o te mahi, te pupuri wai, me te piri i roto i ngā momo hanganga i runga i te sima me te gypsum. Kingmax HPMC e whakarato ana i ngā otinga pono, mahi teitei hei whakatutuki i ngā hiahia o ngā rauemi hanga hou pērā i ngā piripiri taera, te putty pakitara, ngā moata, me ngā paraikete.