Undercoat rau Painting: Lub tswv yim, Tricks & Techniques for a Professional Finish

los ntawm Joost Nusselder | Hloov tshiab ntawm:  Lub rau hli ntuj 20, 2022
Kuv nyiam tsim cov ntsiab lus pub dawb tag nrho cov lus qhia rau kuv cov nyeem, koj. Kuv tsis lees txais kev them nyiaj pab txhawb nqa, kuv lub tswv yim yog kuv tus kheej, tab sis yog tias koj pom kuv cov lus pom zoo pab tau thiab koj kawg yuav yam uas koj nyiam los ntawm ib qho ntawm kuv qhov txuas, Kuv tuaj yeem khwv tau nyiaj ua haujlwm yam tsis tau them nqi ntxiv rau koj. Xav paub ntau ntxiv

Ib qho undercoat yog ib hom xim tshwj xeeb uas tau siv rau saum lub tsho loj lossis primer. Nws yog siv los sau cov imperfections nyob rau hauv qhov chaw thiab los tsim ib tug du nto rau topcoat ua raws li.

Hauv kab lus no, kuv yuav piav qhia tias lub tsho hauv qab yog dab tsi thiab vim li cas nws thiaj li xav tau thaum painting. Ntxiv rau, kuv yuav qhia qee cov lus qhia txog kev siv nws kom raug.

Dab tsi yog undercoat thaum pleev xim

Vim li cas Undercoat yog Tus yuam sij rau kev ua tiav tiav

Undercoat yog ib hom xim tshwj xeeb uas tsim txheej txheej rau topcoat. Nws kuj tseem hu ua primer lossis base coat. Undercoat yog siv los npaj qhov chaw rau tha xim thiab ua kom tiav cov xim sib xws. Undercoat yog ib kauj ruam tseem ceeb hauv cov txheej txheem tha xim, thiab nws tsim ib qho chaw du thiab txawm tias lub tsho sab saum toj ua raws li. Undercoat muaj nyob rau hauv ntau hom, xws li roj-raws li, dej-raws li, thiab ua ke.

Yuav Ua Li Cas Xaiv Txoj Cai Undercoat

Xaiv txoj cai undercoat nyob ntawm qhov chaw tshwj xeeb raug pleev xim thiab hom topcoat siv. Nov yog qee yam uas yuav tsum nco ntsoov thaum xaiv undercoat:

  • Xav txog cov khoom siv pleev xim (ntoo, hlau, cib, nqaj, thiab lwm yam)
  • Xav txog hom topcoat siv (roj-raws li, dej-raws li, thiab lwm yam)
  • Nco ntsoov qhov loj ntawm qhov chaw uas tau pleev xim
  • Ua tib zoo nyeem daim ntawv lo kom paub meej tias cov tsho hauv qab tau sib haum nrog cov tsho sab saum toj
  • Xaiv cov xim uas yog (dawb rau lub teeb topcoats, tsaus rau tsaus topcoats)
  • Xav txog cov kev siv tshwj xeeb thiab cov txiaj ntsig ntawm txhua hom undercoat

Yuav Thov Li Cas Undercoat

Siv undercoat kom zoo yog ib kauj ruam tseem ceeb hauv kev ua tiav tiav. Nov yog cov kauj ruam ua raws li:

  • Ntxuav qhov chaw kom huv si, tshem tawm cov av, plua plav, lossis khib nyiab
  • Tshem tawm cov xim xoob los yog flaking los ntawm scraping los yog sanding
  • Sau txhua qhov los yog kab nrib pleb hauv qhov chaw nrog muab tub lim
  • Siv lub tsho hauv qab hauv cov qauv waffle, siv txhuam los yog cov menyuam
  • Cia lub undercoat kom qhuav tag ua ntej siv topcoat
  • Siv lub tsho tiv no thib ob ntawm undercoat yog tias xav tau
  • Xuab zeb saum npoo maj mam nruab nrab ntawm cov tsho loj kom ua kom tiav

Qhov twg yuav Undercoat

Undercoat tuaj yeem yuav ntawm cov khoom siv hauv zos feem ntau lossis cov khw muag xim xim. Nws yog ib qho tsim nyog siv nyiaj me ntsis ntxiv los yuav lub tsho zoo nkauj, vim nws yuav cuam tshuam rau qhov kawg ntawm qhov project painting. Qee lub tuam txhab kuj muab cov undercoats tshwj xeeb uas tsim los rau ntau hom ntawm qhov chaw lossis topcoats.

Kev hla lub tsho hauv qab yuav zoo li lub sijhawm txuag, tab sis nws tuaj yeem ua rau muaj ntau yam teeb meem, xws li:

  • Cov xim tsis sib xws thiab kev ntxhib los mos ntawm qhov chaw.
  • Tsis zoo adhesion ntawm topcoat, ua rau tev thiab flaking.
  • Qhov xav tau ntau lub tsho tiv no ntawm cov xim kom ua tiav cov xim xav tau.
  • Txo lub neej ntev ntawm txoj haujlwm xim.

Mastering the Art of Applying Undercoat for Painting

Ua ntej thov undercoat, nws yog ib qho tseem ceeb los npaj qhov chaw kom zoo. Nov yog cov kauj ruam ua raws li:

  • Ntxuav qhov chaw kom huv si kom tshem tau cov av, plua plav, lossis roj.
  • Tshem tawm cov xim xoob los yog flaking siv lub scraper lossis sandpaper.
  • Sau cov kab nrib pleb los yog qhov nrog ib qho chaw muab tub lim thiab cia nws qhuav.
  • Xuab zeb saum npoo kom ua tiav ib qho tiav.
  • Ntxuav saum npoo dua kom tshem tawm tej plua plav lossis khib nyiab.

Siv lub Undercoat

Thaum lub saum npoo yog npaj, thiab xaiv txoj cai undercoat, nws yog lub sij hawm mus thov lub undercoat. Nov yog cov kauj ruam ua raws li:

  • Do lub undercoat kom huv si ua ntej siv.
  • Siv lub undercoat nyob rau hauv nyias, txawm lub tsho tiv no siv ib tug txhuam los yog cov menyuam.
  • Cia lub undercoat kom qhuav tag ua ntej siv topcoat.
  • Yog tias xav tau, siv lub tsho thib ob ntawm undercoat kom ua tiav qhov xav tau tuab.
  • Cia lub tsho thib ob kom qhuav kom tiav ua ntej xuab zeb los yog txiav qhov saum npoo los tsim lub kaum sab xis zoo rau kev ua tiav.

Tus yuam sij rau kev ua tiav tiav

Tus yuam sij rau kev ua tiav tiav nrog undercoat yog ua raws li cov kauj ruam uas tau hais los saum toj no thiab siv hom undercoat zoo rau cov khoom koj tab tom pleev xim. Nov yog qee cov lus qhia ntxiv los pab koj ua tiav qhov tiav:

  • Siv cov txhuam hniav zoo los yog cov menyuam siv los siv lub tsho hauv qab.
  • Siv cov undercoat nyob rau hauv txoj cai tej yam kev mob, piv txwv li, tsis kub los yog txias heev.
  • Cia lub undercoat kom qhuav tag ua ntej siv topcoat.
  • Siv a ntub dej xuab zeb txheej txheem kom ua tiav ib qho tiav.
  • Siv cov khoom tsim los ua haujlwm ua ke, piv txwv li, siv cov tsho hauv qab thiab cov tsho sab saum toj los ntawm tib hom.

Cov txiaj ntsig tshwj xeeb ntawm kev siv Undercoat

Siv undercoat ua ntej pleev xim muaj ntau yam txiaj ntsig, suav nrog:

  • Nws pab tiv thaiv qhov chaw ntawm noo noo thiab lwm yam ib puag ncig.
  • Nws tso cai rau cov xim ua kom zoo dua rau saum npoo, uas ua rau lub sijhawm ntev dua.
  • Nws pab kho txhua qhov tsis zoo ntawm qhov chaw, ua rau kom muaj xim zoo nkauj, zoo nkauj.
  • Nws ua haujlwm raws li cov txheej txheem tseem ceeb ntawm primer thiab topcoat, kom ntseeg tau tias topcoat adheres zoo thiab zoo rau lub sij hawm ntev.

Hauv kev xaus, undercoat yog ib yam khoom tseem ceeb thaum nws los txog rau painting. Los ntawm kev ua raws li cov kauj ruam uas tau hais los saum toj no thiab siv txoj cai ntawm undercoat, koj tuaj yeem ua tiav qhov zoo meej uas yuav kav ntev.

Muaj pes tsawg lub tsho ntawm Undercoat Koj Yuav Tsum Thov?

Ua ntej peb dhia mus rau hauv cov tsho tiv no ntawm undercoat koj yuav tsum thov, cia peb tham txog qhov tseem ceeb ntawm kev npaj. Kev pleev xim tsis yog tsuas yog siv cov xim pleev xim rau saum npoo, nws yog hais txog kev tsim kom huv thiab du puag rau cov xim kom ua raws li. Nov yog qee cov kauj ruam los npaj koj cov phab ntsa rau undercoat:

  • Ntxuav cov phab ntsa kom huv si kom tshem tau cov av, plua plav, lossis roj.
  • Xuab zeb cov phab ntsa nrog cov ntawv xuab zeb los tsim ib qho chaw du.
  • Siv lub scraper tshem tawm cov xim flaking.
  • Siv daim npog ntsej muag los tiv thaiv txhua qhov chaw koj tsis xav pleev xim.
  • Hnav hnab looj tes tiv thaiv koj txhais tes.

Pom zoo naj npawb ntawm cov tsho tiv no

Raws li txoj cai dav dav ntawm tus ntiv tes xoo, nws raug pom zoo kom thov tsawg kawg ib lub tsho tiv no ntawm undercoat ua ntej pleev xim. Txawm li cas los xij, tus naj npawb ntawm cov tsho loj uas koj xav tau yuav nyob ntawm cov yam uas tau hais los saum toj no. Nov yog qee cov lus qhia:

  • Yog tias koj cov phab ntsa zoo thiab koj tab tom pleev xim rau xim xim, ib lub tsho tiv no yuav tsum txaus.
  • Yog tias koj cov phab ntsa tsis zoo lossis koj tab tom pleev xim rau xim tsaus, ob lossis ntau lub tsho tiv no yuav tsim nyog.
  • Nco ntsoov nyeem cov chaw tsim khoom cov lus qhia rau cov tsho hauv qab uas koj siv los txiav txim siab txog cov tsho loj uas pom zoo.

DIY lossis ntiav tus kws tshaj lij?

Yog tias koj ntseeg siab hauv koj qhov kev txawj DIY, thov undercoat koj tus kheej tuaj yeem txuag koj nyiaj. Txawm li cas los xij, yog tias koj tsis paub meej lossis tsis muaj cov cuab yeej tsim nyog, nws yuav yog qhov zoo tshaj los ntiav tus kws tshaj lij. Ib tug kws pleev xim rau yuav muaj kev paub dhau los thiab cov cuab yeej los xyuas kom meej tias koj cov phab ntsa tau npaj kom zoo thiab cov tsho hauv qab tau siv kom raug.

Vim li cas Undercoat tseem ceeb rau kev ua tiav tiav

Ib qho undercoat yog ib qho tseem ceeb hauv cov txheej txheem tha xim. Nws tsim ib tug du thiab txawm lub hauv paus rau lub tsho tiv no zaum kawg ntawm cov xim. Yog tsis muaj undercoat, qhov saum npoo yuav tsis sib xws, thiab cov xim kawg yuav tsis ua tiav qhov xav tau qhov tob.

Pab Ua kom tiav cov xim uas xav tau hauv tsawg dua cov tsho loj

Siv ib lub tsho hauv qab kom ntseeg tau tias koj cov xim xaiv tuaj yeem ua tiav hauv cov tsho me me. Qhov no tsis tsuas yog txuag lub sijhawm tab sis kuj nyiaj txiag raws li koj xav tau cov xim tsawg dua los npog qhov chaw.

Txhim kho qhov zoo ntawm lub tsho zaum kawg

Ib qho undercoat pab txhim kho qhov zoo ntawm cov xim zaum kawg. Nws muab lub hauv paus zoo rau topcoat kom ua raws li, kom ntseeg tau tias nws kav ntev dua thiab zoo dua.

Npaj Qhov Nto rau Kev Painting Zoo

Ib qho undercoat npaj qhov chaw rau kev pleev xim kom zoo. Nws ua rau txhua qhov tsis zoo thiab pab kom npog me me blemishes. Qhov no ua rau saum npoo npaj rau topcoat, kom ntseeg tau tias du thiab flawless tiav.

Tiv thaiv qhov Nto los ntawm noo noo

Siv ib lub undercoat muab ib txheej ntxiv ntawm kev tiv thaiv rau saum npoo. Nws pab tiv thaiv kev ya raws, uas tuaj yeem ua rau muaj kev puas tsuaj rau saum npoo ntawm lub sijhawm. Qhov no yog qhov tshwj xeeb tshaj yog rau cov chaw sab nraud xws li cib, puav, thiab coba.

Puas yog Undercoat tib yam li Primer?

Thaum cov kws kho kom zoo nkauj feem ntau siv cov lus "undercoat" thiab "primer" sib hloov, lawv yeej ua haujlwm sib txawv hauv cov txheej txheem tha xim. Nov yog qee cov ntsiab lus uas yuav tsum nco ntsoov:

  • Primers ua raws li lub hauv paus rau koj cov xim kom lo rau, thaum undercoats tsim ib lub tiaj thiab theem puag rau topcoats.
  • Undercoats yeej ib txwm yog hom primer, tab sis tsis yog txhua tus primers tuaj yeem ua cov tsho hauv qab.
  • Undercoats feem ntau yog siv los ua ob lub tsho tiv no, thaum primers yog thawj lub tsho tiv no ncaj qha rau ntawm qhov chaw.
  • Primers pab npaj qhov chaw rau daim ntawv thov ntawm cov xim, thaum undercoats pab kom ua tiav ib tug du thiab theem nto rau lub kawg lub tsho tiv no ntawm cov xim.

Lub luag haujlwm ntawm Undercoat hauv Painting

Undercoats ua lub luag haujlwm tseem ceeb hauv kev ua tiav kev ua tiav zoo rau koj cov xim pleev xim. Nov yog qee qhov haujlwm tseem ceeb ntawm undercoat:

  • Muab lub hauv paus muaj zog: Undercoats pab npaj qhov chaw rau daim ntawv thov ntawm lub tsho tiv no zaum kawg ntawm cov xim los ntawm kev muab lub hauv paus muaj zog rau nws ua raws li.
  • Tiv thaiv cov ntsiab lus: Undercoats pab tiv thaiv kom tsis txhob ya raws ntawm qhov chaw thiab ua rau muaj kev puas tsuaj rau cov xim.
  • Smoothing tawm imperfections: Undercoats pab sau rau hauv tej kab nrib pleb, qhov, los yog lwm yam imperfections nyob rau hauv lub nto, tsim ib tug du thiab theem puag rau lub kawg lub tsho tiv no ntawm cov xim.
  • Txhim kho adhesion: Undercoats muaj cov binders uas pab cov xim kom ua raws li qhov chaw, txhim kho tag nrho adhesion ntawm cov xim.

Qhov sib txawv ntawm Undercoat

Muaj ntau ntau hom undercoat muaj, txhua tus tsim los ua haujlwm tshwj xeeb. Nov yog qee qhov feem ntau hom undercoat:

  • Ntoo undercoat: Hom undercoat no yog tsim tshwj xeeb rau siv rau ntawm cov ntoo liab qab. Nws pab txhawm rau txhawm rau cov ntoo thiab tiv thaiv kom tsis txhob ya raws los ntawm kev nkag mus rau nws, thaum tseem muab lub ntsej muag du thiab qib rau lub tsho tiv no zaum kawg.
  • Steel undercoat: Hom undercoat no yog tsim los siv rau ntawm qhov chaw liab qab. Nws pab npaj qhov chaw rau daim ntawv thov ntawm cov xim los ntawm kev tshem tawm cov xeb lossis lwm yam kab mob thiab muab lub hauv paus du thiab qib rau lub tsho loj kawg ntawm cov xim.
  • Masonry undercoat: Hom undercoat no yog tsim los siv rau ntawm cib, puav, coba, thiab lwm yam masonry nto. Nws pab txhawm rau sau cov kab nrib pleb lossis qhov hauv qhov chaw, tsim kom muaj lub hauv paus du thiab qib rau lub tsho loj kawg ntawm cov xim.

xaus

Undercoat yog hom xim siv los ua txheej txheej ua ntej siv lub topcoat. Nws yog ib qho tsim nyog yuav tau ua kom tiav qhov zoo meej tiav thiab du nto. 

Nws yog ib qho tseem ceeb los xaiv txoj cai undercoat rau hom nto koj tha xim thiab hom topcoat koj siv. Kuv vam tias phau ntawv qhia no tau pab koj ua qhov ntawd.

Kuv yog Joost Nusselder, tus tsim ntawm Tools Doctor, cov ntsiab lus lag luam, thiab txiv. Kuv nyiam sim cov cuab yeej tshiab, thiab ua ke nrog kuv pab neeg kuv tau tsim cov ntawv blog tob txij li xyoo 2016 los pab cov neeg nyeem siab ncaj nrog cov cuab yeej & cov lus qhia ua khoom siv.