Ho na le mabaka a mangata a amang ts'ebeliso ea hydroxypropyl methylcellulose HPMC thepa ea kaho, haholo-holo plaster e thehiloeng ho gypsum, ka tsela e latelang:
1 ho boloka metsi
Hydroxypropyl methylcellulose bakeng sa kaho e thibela ho monngoa ha metsi ho feteletseng ke substrate, 'me ha gypsum e se e tsitsitse ka botlalo, metsi a lokela ho bolokoa ka har'a plaster ka hohle kamoo ho ka khonehang. Tšobotsi ena e bitsoa ho bolokoa ha metsi 'me e lekana ka ho toba le ho teteana ha tharollo ea hydroxypropyl methylcellulose e ikhethileng kaho ka har'a stucco. Ha ho teteana ha tharollo ho phahame, bokhoni ba eona ba ho boloka metsi bo phahame. Hang ha metsi a eketsehile, bokhoni ba ho boloka metsi bo tla fokotseha. Lebaka ke hobane metsi a eketsehileng a fokotsa tharollo ea hydroxypropyl methylcellulose bakeng sa kaho, e leng se fellang ka ho fokotseha ha ho teteana.
2 tse thibelang ho thella
Plaster e nang le thepa e thibelang ho thella e dumella di-applicator ho kenya masela a teteaneng ntle le ho thella, mme hape e bolela hore plaster ka boyona ha se thixotropic, e neng e tla thella fatshe nakong ya ho e sebedisa.
3 Fokotsa ho teteana, kaho e bonolo
Plaster ea gypsum e nang le viscosity e tlase le e bonolo ho e haha e ka fumanoa ka ho eketsa lihlahisoa tse fapaneng tsa hydroxypropyl methylcellulose tse ikhethileng mohahong. Ha ho sebelisoa maemo a viscosity a tlase a hydroxypropyl methylcellulose e ikhethileng mohahong, tekanyo ea viscosity e fokotseha hanyane. Kaho e ba bonolo, empa bokhoni ba ho boloka metsi ba hydroxypropyl methylcellulose e nang le viscosity e tlase bakeng sa kaho bo fokola, 'me bongata ba ho eketsa bo hloka ho eketsoa.
4 Ho lumellana ha stucco
Bakeng sa tekanyo e tsitsitseng ea seretse se omileng, ho theko e tlaase ho hlahisa bongata bo phahameng ba seretse se metsi, e leng se ka finyelloang ka ho eketsa lipululana tse ngata tsa metsi le moea. Empa bongata ba lipululana tsa metsi le moea bo bongata haholo.
Nako ea poso: Mmesa-20-2023