I te whanaketanga o te umanga hiko hiko, kua rongonui te whakapūmau hiato o ngā rauemi whakapūmau waro mō tōna kaha hiko pai rawa atu. Kua waiho hei tohu mō te whakapūmau uku tuku iho. Ko te whakapūmau hiato āhua-maru he mea hanga ki te rapa silicon hei whakapūmau i te whakapūmau o waho. Ko te karapu epoxy kaha teitei e whakarato ana i te kawenga miihini whakapūmau ā-roto me te peera. Kei roto i tēnei hanga he pokepokea ai te rapa silicon, he karapu matua me te hononga pēhanga topenga whakarewa, e whakapai ake ana i te pono, ā, he painga penei:

1. Te kaha hiko matatau me te ātete paru kaha. Ka whakapai ake te rapa silicon me te kaha hiri i te taumata o te ātete paru. Ko te ngaohiko o te ātete maku me te ātete paru e rite ana ki te 2-2.5 ngā wā o te ārai uku. Ka whakaitihia te urunga paru, ka whakapai ake i te ōhanga me te pono o te whatunga.

2. He kaha kume teitei te epoxy o roto o te ārai matū, e 2-3 ngā wā i te maitai noa, ā, e 8-10 ngā wā i te kaha teitei, nō reira ka tino whakapai ake i te kaha miihini.

3. Ka whakamahia ngā mahi toi hononga pēhanga matatau i roto i te rohe me te mandrill hei whakapumau i te kaha miihini pono.

4. He tino pai te ātete o te kirikiri silicon ki te pāmahana tiketike me te iti, te pirau o te tau, te pirau tawhito me te pirau hiko, ā, he anga pakari me te karapu epoxy, kāore e hiahiatia he makuku, ā, kāore e hiahiatia he horoi.

5. He iti te rahinga, he māmā te taumaha (1/4- 1/8 ki te ngaohiko ōrite), e whakamahi ana i te kaihanga pōro me te tūhono paerewa mō te kawe ngāwari.

6. He pai te āheinga ārai-pānga, ārai-whetu me te ārai-pahūtanga.