Ko te aukati parahi, te whakakore parahi rānei, he tāpiri mahi e whakamahia ana i roto i ngā rauemi polymer pērā i te kirihou me te rapa. Ko tana mahi matua he aukati i te pānga whakakorikori tawhito o te parahi, o ngā katote parahi rānei ki ngā rauemi, hei ārai i te pirau o te rauemi, te tae kerekere, te pirau rānei o te āhuatanga miihini i puta mai i te pā ki te parahi. He mea nui rawa atu i roto i ngā mara pērā i te paipa waea, te uhi taura, ngā rauemi takai hiko, me ētahi atu.

E whakamahia whānuitia ana te parahi me ōna koranu (pērā i ngā waea) mō te tuku hiko, engari ina pā tika te parahi ki ētahi rauemi polymer (pērā i te PVC, te polyethylene), ka puta pea ēnei raruraru:

Te waikura whakakorikori:
He whakakorikori waikura kaha te Cu2+ e tere ake ai te pakaru waikura o ngā mekameka ngota ngota polymer, inā koa i roto i ngā taiao pāmahana tiketike me te makuku.

Waikura waikawa：
I roto i ngā rauemi halogenated pērā i te PVC, ka tauhohe pea te parahi ki te HCl kua pirau hei whakaputa i te parahi chloride (CuCl2), ka tere ake te pirau o ngā rauemi (pānga whakakorikori-ake).

Te hekenga o te āhua:
Mā te hekenga o ngā katote parahi ka puta ake ngā ira kakariki, pango rānei (waikura parahi) ki te mata o te rauemi, ka pā kino ki tōna āhua.

Te tikanga mahi a te deactivator
Ka pehia e ngā taputapu whakakore ngā pānga kino o te parahi mā roto i ēnei tikanga:

Ngā katote parahi kua whakakōpiritia:
Ka honoa ki te Cu2+ kore utu, ka hangaia he matatini pumau hei aukati i tā rātou mahi whakatere (pērā i ngā matū benzotriazole).

Te whakakorenga o te mata parahi:
Hangaia he kiriata tiaki ki te mata o te parahi hei ārai i te tukunga o ngā katote parahi (pērā i ngā pūhui whākōkī waro).

Te whakakore i ngā matū waikawa:
I roto i te PVC, ka taea e ētahi mea whakakore te whakakore i te HCl i puta mai i te pirau, ka whakaiti i te waikura o te parahi (pērā i ngā mea whakau tote mata he mahi ātete parahi anō hoki).

Ngā Kaiwhakakore Parahihe momo "Kaitiaki Kitea" i roto i ngā rauemi polymer e whakaroa ana i te roa o te ora o ngā hua pēnei i ngā uhi waea mā te aukati i te mahi whakatere o te parahi. Ko te kaupapa matua o tana hangarau kei roto i te chelation matū tika me te passivation mata, me te whakataurite i te hoahoa taiao me te whai huatanga utu. I roto i te hoahoa o te anga waea, ko te tauira taunga ongā mea whakakore, ārai murame ētahi atu tāpiringa te mea nui hei whakarite i te pono o ngā rauemi mō te wā roa.