Ko ngā pōhiri whakamutunga taupua he taputapu whakapapa motuhake i hangaia kia eke ai i te mata papaku, mā te āhua o te wai, ki runga i ngā tāpoi pērā i ngā metara, te wai, ngā umu hiriwa, me ētahi pāpaku. Ko ēnei pōhiri e mōhiotia ana mā roto i te paraihe iti rawa, e neke ake ana i te 1000 grit ki te 10,000 grit, teitei ake rānei, ka taea ai e ratou te wehe i ngā ngoikera iti rawa i mahue mai i ngā tahumaero whakamutunga. Ko ngā koronga paraihe, ina nui noa ko te diamanti, te ōkihua arumini, te karaiti hiriwa rānei, kei te kapi ki runga i te takotoranga muramura—pērā i te harakeke, te microfiber, te pōro rānei—ka tōwhai ki te mata o te tuhinga kore ai i te whakapressa anuanu, he mea matua nui tēnei kia kaua ai e āwhata āwhata hou. Ko te hanganga o ngā pōhiri whakamutunga taupua he tikanga: kei te tūpono ngā paraihe, ā ko te kai-hono (he resin hoki te nui) ka whakamāmā i te wehe wehe o ngā paraihe, ka aukati i te kino o te mata. I roto i te mahi metara, ko ēnei pōhiri he mea matua mō te whakamutunga i te miramarino, te chrome, te arumini, me ngā metara uku pērā i te hirihiri me te wai, ka huri i ngā mata mā, ngā mata kauta hoki ki ngā mata papaku e whakamahia ana i ngā tapa motuka, ngā taonga taonga, me ngā taputapu rite. Mō te wai me ngā umu hiriwa, ka wehe i ngā ngoikera iti kia pai ake te mārama, te papaku hoki, he mea matua nui ki ngā waahanga optically, ngā mira, me ngā tapware wai. Ko te tikanga whakamutunga me ēnei pōhiri he tukutuku o ngā ngira iti ake, me te wehe i ngā ngoikera i mahue mai i ia wa. Ka whakamahia hua whakamutunga rānei—pērā i ngā kōpae horoi wai rānei ngā miraka motuhake—ka iti ake te whakarewa, ka kawea atu te para, aukatia te poka, me te whakapai ake i te rere. Ko ngā tohunga i ngā umanga pērā i te haerenga hau (mō ngā waahanga turubine), te whanaketanga taonga rangimarie, me te inu hinengaro tika e rely ana ki ngā pōhiri whakamutunga taupua kia taea ai te tiki i ngā paearu ataata me te mahi, nā te mea ko te mata taupua ka whakapai ake i te āhua, engari ka whakapai ake hoki i te here tangohia te porosity mata. Ahakoa te whakamahi i ngā pōhiri ringaringa, i ngā taputapu aunoa rānei, ko ēnei pōhiri ka hoatu i ngā putanga tata, na reira he mea nui hei eke i te tikanga teitei rawa o te whakamutunga.