Ngā poroporo karāhe

1. Mama, nui te rahinga. Ko te matotoru o ngā pirepire karāhe tuwhera he tata ki te kotahi tekau o te matotoru o ngā matūriki whakakī tuku iho. I muri i te whakakī, ka taea te whakaiti i te taumaha pūtake o te hua, te whakakapi me te penapena i ngā kapia whakaputa, me te whakaiti i ngā utu hua.

2. He mata kua whakarerekētia ā-pūtaiao (lipophilic). He ngāwari te whakamakuku me te horapa o ngā pirepire karāhe tuwhera, ā, ka taea te whakakī ki te nuinga o ngā kapia kirihou whakamahana, pērā i te polyester, te epoxy, te polyurethane, me ētahi atu.

3. He nui te marara me te pai o te wai. Nā te mea he porowhita iti ngā pīrere karāhe tuwhera, he pai ake te wai i roto i te kapia wai i ngā whakakī maramara, ngira, āhua koretake rānei, nō reira he pai rawa te mahi whakakī pokepoke. Ko te mea nui ake ko ngā pīrere iti he isotropic, nō reira kāore he rerekētanga o te tere whakaheke o ngā wāhanga rerekē i puta mai i te whakatakotoranga, ā, ka whakapumautia te pumau o te āhua o te hua me te kore e piko.

4. Te ārai wera, te ārai oro, te ārai, te tere mimiti wai iti. He hau angiangi te roto o ngā pīrere karāhe tuwhera, nō reira he āhuatanga ārai oro me te ārai wera, ā, he whakakī pai mō ngā momo hua tiaki wera me te ārai oro. Ka taea hoki te whakamahi i ngā āhuatanga ārai wera o ngā porowhita karāhe tuwhera hei tiaki i te hua mai i te ru wera i puta mai i te tauwhitiwhiti i waenga i ngā āhuatanga whakamahana tere me te whakamatao tere. Nā te ātete motuhake teitei me te tino iti o te mimiti wai, ka whakamahia whānuitia i roto i te tukatuka me te hanga rauemi ārai taura.

5. He iti te mimiti hinu. Mā ngā matūriki o te porowhita e whakatau ko ia te mea iti rawa te horahanga mata motuhake, ā, he iti hoki te mimiti hinu. Ka taea te whakaiti i te nui o te kapia i te wā e whakamahia ana, ā, kāore e nui te pikinga o te matotoru ahakoa i raro i te kaupapa o te tāpiri nui, ka tino whakapai ake i ngā āhuatanga whakaputa me te whakahaere. Ka whakapiki ake i te pai o te whakaputa mā te 10% ki te 20%.