Koj puas paub qhov txawv ntawm skim txheej thiab phab ntsa putty?

Ob lub tsho skim thiab phab ntsa putties tuaj yeem kho qhov tsis zoo thiab qhov tsis zoo. Tab sis, hauv cov ntsiab lus yooj yim, skim coats yog rau cov teeb meem pom tseeb zoo li honeycombing thiab corrugation ntawm cov pob zeb uas raug pom. Nws kuj tseem siv tau los muab cov phab ntsa ua kom zoo nkauj yog tias cov pob zeb raug ntxhib los yog tsis sib xws. Phab ntsa putty yog tsim rau me me imperfections xws li cov kab nrib pleb kab nrib pleb thiab me unevenness ntawm primed los yog pleev xim rau phab ntsa.

Lawv daim ntawv thov kuj txawv. Skim coats yog siv rau cov pob zeb liab liab, feem ntau tshaj qhov chaw loj xws li tag nrho cov phab ntsa, los kho waviness. Phab ntsa putty yog siv rau ntawm ib qho uas twb muaj lawm los yog pleev xim rau saum npoo thiab feem ntau siv rau ntawm qhov chaw me me, xws li kev kho qhov chaw me me xws li cov kab nrib pleb me me.

Tau txais nws, lwm qhov sib txawv ntawm skim tsho thiab phab ntsa putty yog thaum koj siv lawv hauv cov txheej txheem tha xim - qhov tseem ceeb, yog tias koj siv ob qho tib si rau ib qhov project, lub tsho tiv no skim tuaj ua ntej ua ntej putty. Vim tias skim tsho yog siv rau cov pob zeb liab qab, nws yog siv thaum lub sij hawm npaj nto (los yog ua ntej txheej txheem tha xim). Kev npaj saum npoo kom zoo pab xyuas kom cov phab ntsa nyob rau sab saum toj ua ntej pleev xim.

Phab ntsa putty, ntawm qhov tod tes, yog ib feem ntawm cov xim pleev xim nws tus kheej. Thaum cov phab ntsa tshiab yog pleev xim rau thiab cov primer tau siv, cov kauj ruam tom ntej yog putty. Nws yog siv los xyuas seb qhov kawg ntawm qhov tsis zoo. Tom qab ntawd, ib qho chaw primer yog siv, thiab thaum kawg cov phab ntsa yog npaj rau lub tsho tiv no saum toj kawg nkaus.

Raws li ib qho khoom siv tsis tseem ceeb, HPMC (Hydroxypropyl Ethyl Cellulose) yog siv dav hauv cov xim degreasing thiab phab ntsa putty. Lub luag haujlwm tseem ceeb ntawm HPMC hauv topcoats thiab phab ntsa putties yog thickening thiab dej tuav, muab cov khoom sib npaug nrog rau lub sijhawm qhib, plam tsis kam, adhesion, zoo cuam tshuam thiab shear zog.

HPMC yog nrov nyob rau hauv phab ntsa putty daim ntawv thov, peb kuj muab ntau qib sib txawv rau saum lub tsho tiv no daim ntawv thov, thiab lwm yam. Rau tag nrho cov xim thiab phab ntsa putty manufacturers, peb yeej ib txwm tos ntsoov yuav tham nrog koj ntxiv.