Ko te  durometer Shore  ko te pūrere hoki whanganga te  pakeke  o te rauemi, te nuinga o waerau, elastomers, me rubbers. Tau Higher i runga i te tauine tohu he ātete nui ki te nukuhanga me ngā rauemi kupu uaua. Tau raro tohu iti resistance me ngā rauemi ngawari.

Āhuahira

1 koranu uiuia ai, i hanga uiuia te o rauemi koranu, parewai me anti-waikura, pū, me te roa.  

2.Precision hanganga, tika atu pūmau. Ko te hanganga ā-Tiwihana hoahoa pau ki te hanga atu pūmau, me te tika ine pakeke.

3. Mīhini haora, hohoro whakautu, he mārama, atu tika, me te watea ki te pānui i tauine.

4. hoahoa puna nui ki te whakarite inenga tika

5. Ko te mata o te hoahoa pepa-kore, i ahuareka ai ahua, watea ki te whakatika hurihuri

6. waea te whakarite i te pātene whakarewa, whakatika te tightness o te whakaatu haora, ake haratau, me te tere.

Taupānga

Ko te tikanga e tika ana mō te rapa, rapa waihanga, rapa ngohengohe, pareaku, hiako ware pi, me ētahi atu