He maha ngā āhuatanga e pā ana ki te whakamahinga o te hydroxypropyl methylcellulose HPMC i roto i ngā rauemi hanga, inā koa te raima gypsum, penei:
1 te pupuri wai
Ka ārai te Hydroxypropyl methylcellulose mō te hanga i te mimiti nui o te wai e te papa, ā, ina tino pūmau te gypsum, me pupuri te wai i roto i te paraikete kia rite ki te taea. Ka kiia tēnei āhuatanga he pupuri wai, ā, he rite tonu ki te matotoru o te otinga hydroxypropyl methylcellulose motuhake mō te hanga i roto i te stucco. Ka teitei ake te matotoru o te otinga, ka teitei ake tōna kaha pupuri wai. Kia piki ake te nui o te wai, ka heke te kaha pupuri wai. Nā te mea ka waimeha te otinga o te hydroxypropyl methylcellulose mō te hanga i te nui o te wai, ka heke te matotoru.
2 ārai-heke
Mā te pāreti he āhuatanga ārai-totoka ka taea e ngā kaiwhakakapi te pani i ngā paparanga matotoru ake me te kore e totoka, ā, ko te tikanga hoki ehara te pāreti tonu i te thixotropic, e kore nei e paheke ki raro i te wā e pania ana.
3 Whakaitihia te matotoru, ngāwari te hanga
Ka taea te whiwhi i te paraikete gypsum he iti te matotoru, he ngāwari hoki te hanga mā te tāpiri i ngā hua hydroxypropyl methylcellulose motuhake mō te whare. Ina whakamahia ngā taumata matotoru iti o te hydroxypropyl methylcellulose motuhake mō te whare, ka iti ake te matotoru. Ka māmā ake te hanga, engari he ngoikore te kaha pupuri wai o te hydroxypropyl methylcellulose iti te matotoru mō te hanga, ā, me whakanui ake te nui o te tāpiri.
4 Te hototahitanga o te stucco
Mō te nui o te moata maroke kua whakaritea, he pai ake te whakaputa i te nui o te moata mākū, ka taea tēnei mā te tāpiri atu i ngā mirumiru wai me te hau. Engari he nui rawa te nui o te wai me te hau.
Wā tuku: Paenga-whāwhā-20-2023