Ko te hanganga matū matua o ngā pirepire mānu ko te waikura o te silicon me te konumohe, ko te nui o te silicon dioxide kei roto ko te 50-65%, ā, ko te nui o te konumohe waikura kei roto ko te 25-35%. Nā te mea he teitei te ira rewa o te silica ki te 1725 ℃, ā, ko te ira rewa o te alumina he 2050 ℃, he rauemi ātete-wera katoa ēnei. Nō reira, he tino teitei te ātete-wera o ngā pirepire mānu, tae atu ki te 1600-1700 ℃, ā, he pai rawa atu ēnei hei ātete-wera mahi-teitei. He mama, he ārai wera. He angiangi, he takoto kau te pakitara pirepire mānu, he haurua-kore te kōhao, he iti noa te hau (N2, H2 me te CO2, me ētahi atu), ā, he puhoi, he iti hoki te kawe wera. Nō reira, ehara i te mea he mama noa iho ngā pirepire e mānu ana (te taumaha rōrahi 250-450 kg / m3), engari he tino pai hoki mō te whakamarumaru wera (te kawe wera 0.08-0.1 i te pāmahana rūma), ā, he tūāpapa tēnei mō rātou ki te whai wāhi nui ki te ao o ngā rauemi whakamarumaru wera māmā.

He pakari me te kaha teitei. Nā te mea he tinana karāhe mārō te pīrere mānu i hangaia e te wāhanga kohuke silica alumina (quartz me te mullite), ka taea e tōna pakari te eke ki te Mohs 6-7, ka taea e te kaha pēhanga pumau te eke ki te 70-140mpa, ā, ko tōna kiato tūturu ko te 2.10-2.20g/cm3, he rite ki te toka. Nō reira, he kaha teitei ngā pīrere mānu. I te nuinga o te wā, he iti te pakari me te kaha o ngā rauemi pore māmā, pokorua rānei pērā i te perlite, te toka kohua, te diatomite, te sepiolite me te vermiculite whānui. Ko te ngoikoretanga o ngā hua whakamahana wera, o ngā hua ātete māmā rānei i hangaia mai i a rātou, ko te ngoikore o te kaha. Ko ō rātou ngoikoretanga he kaha noa iho o ngā pīrere mānu, nō reira he nui ake ngā painga whakataetae me ngā whakamahinga whānui o ngā pīrere mānu. He pai te rahi o te matūriki, ā, he nui te horahanga mata motuhake. Ko te rahi tūturu o ngā pīrere mānu ko te 1-250 μM. Ko te horahanga mata motuhake ko te 300-360cm2/g, he rite ki te sima. Nō reira, ka taea te whakamahi tika i ngā pīrere mānu me te kore e huri.

Ka taea e te pai te whakatutuki i ngā hiahia o ngā momo hua, ko ētahi atu rauemi whakamahana mama he nui te rahi o te matūriki (pēnei i te perlite, me ētahi atu), ki te huri ka nui ake te kaha, kia tino whakaitihia ai te whakamahana. I tēnei whakaaro, he painga ngā pirepire mānu. He pai te whakamahana hiko. He pai ngā pirepire mānu, ā, kāore e kawe hiko. I te nuinga o te wā, ka heke te ātete o te whakamahana i te pikinga o te pāmahana, engari ka piki ake te ātete o te pirepire mānu i te pikinga o te pāmahana. Kāore tēnei painga i te mea kei ētahi atu rauemi whakamahana. Nō reira, ka taea te hanga hua whakamahana i raro i ngā āhuatanga pāmahana teitei.