Ngaba uyawazi umahluko phakathi kwe-skim layer kunye ne-wall putty?

Zombini iidyasi ze-skim kunye ne-putty eludongeni zinokulungisa ukungafezeki komphezulu kunye nokungafezeki. Kodwa, ngamagama alula, iidyasi ze-skim zezeziphene ezicacileyo ezifana ne-honeycombing kunye ne-corrugation kwikhonkrithi eveziweyo. Ingasetyenziselwa ukunika iindonga ukuthungwa okugudileyo ukuba ikhonkrithi eveziweyo irhabaxa okanye ayilingani. I-wall putty ifanele ukungafezeki okuncinci okufana nokuqhekeka kweenwele kunye nokungalingani okuncinci kwiindonga eziqingqiweyo okanye ezipeyintiweyo.

Izicelo zabo nazo zahlukile. Iidyasi ezityibilikayo zifakwa phezu kwekhonkrithi engenanto, ngokuqhelekileyo phezu kwemiphezulu emikhulu enje ngeendonga zonke, ukulungisa ukuphaphatheka. I-wall putty igalelwa phezu kwendawo esele iqatyiwe okanye ipeyintiwe kwaye isetyenziswa kakhulu kwiindawo ezincinci, ezinje ngolungiso lwamabala okusilela okuncinci okufana neentanda ezincinci.

Ndiyifumene, omnye umehluko phakathi kwengubo ye-skim kunye ne-wall putty xa uyisebenzisa kwinkqubo yokupenda - ngokusisiseko, ukuba usebenzisa zombini iprojekthi, isambatho se-skim siza kuqala ngaphambi kwe-putty. Ngenxa yokuba i-skim coat isetyenziswe kwikhonkrithi engenanto, isetyenziswe ngexesha lokulungiswa kwendawo (okanye ngaphambi kwenkqubo yokupeyinta). Ukulungiswa okufanelekileyo kwendawo kunceda ukuqinisekisa ukuba iindonga zikwimeko ephezulu ngaphambi kokupeyinta.

I-Wall putty, ngakolunye uhlangothi, inxalenye yenkqubo yepeyinti ngokwayo. Xa udonga olutsha lupeyintiwe kwaye i-primer isetyenziswe, isinyathelo esilandelayo yi-putty. Isetyenziselwa ukujonga nakuphi na ukungafezeki komphezulu wokugqibela. Emva koko, i-spot primer isetyenziswe, kwaye ekugqibeleni iindonga zilungele isambatho esiphezulu.

Njengomxube oyimfuneko, i-HPMC (i-Hydroxypropyl Ethyl Cellulose) isetyenziswa kakhulu ekudambiseni ipeyinti kunye ne-putty eludongeni. Imisebenzi ephambili ye-HPMC kwi-topcoat kunye ne-putty eludongeni iyaqina kunye nokugcinwa kwamanzi, ukubonelela ngeempawu ezilungeleleneyo ezibandakanya ixesha elivulekileyo, ukuxhathisa ukutyibilika, ukunamathela, ukuxhathisa okulungileyo kunye namandla okucheba.

I-HPMC idumile kwisicelo se-putty eludongeni, sikwabonelela ngamabakala ahlukeneyo kwisicelo sedyasi ephezulu, njl. Ukugqiba ipeyinti kunye nabavelisi be-putty eludongeni, sihlala sijonge phambili ukuthetha nawe ngakumbi.