Lacquer lo yog tsim los khaws ntoo thiab txuas ntxiv lub neej ntawm cov khoom ntoo lossis rooj tog zaum. Tab sis tsis yog txhua cov kua roj vanish muaj cov npe loj ntawm cov khoom, thiab yog li cov kev xaiv ntawm ib lossis lwm hom yog txiav txim siab los ntawm cov kev mob tshwj xeeb, piv txwv li, permeability ntawm chav tsev, av noo, kis tau rau ultraviolet rays thiab qhov yooj yim ntawm thov cov kua roj vanish nws tus kheej.
Muaj ntau ntau cov kua roj vanish rau cov khoom siv ntoo txheej. Thaum txiav txim siab cov kua roj vanish rau ntoo zoo dua los xaiv, pib los ntawm lub hom phiaj ntawm cov ntaub ntawv tiav thiab cov xwm txheej uas lawv yuav siv.
Alkyd varnishes
Cov varnishes ntoo nrog alkyd sib txuas yog siv rau kev kho ntoo sab hauv tsev thiab sab nraum zoov. Hais txog lub zog ntawm cov yam ntxwv, hom varnish no yog ib qho zoo tshaj plaws. Kev npog ntawm ntoo yog ib qho nyuaj thiab ntseeg tau tiv thaiv ntoo los ntawm ya raws. Cov kua roj vanish tiv taus UV duab. Kuj tseem muaj qhov ua yuam kev me: cov kua roj vanish poob ntev, tsawg kawg peb hnub. Cov tshuaj ntxiv nyob rau hauv alkyd varnishes tuaj yeem txo lub sijhawm kom qhuav mus rau ib hnub.
Lwm hom alkyd varnish yog cov khoom lag luam nrog urethane pab pawg ntxiv. Xws li cov kua roj vanish kom qhuav sai dua - txog 12 teev, thaum lub zog ntawm cov yam ntxwv ntawm cov xim nws tus kheej nce ho.
Roj varnishes
Cov roj varnishes kuj tseem siv tau rau cov xov ntoo sab hauv. Cov khoom no tau nthuav tawm nyob rau hauv ntau ntxoov: los ntawm daj ntseg daj mus rau xim av khaus. Qhov pom ntawm qhov kawg ntawm cov khoom tiav yuav ua raws li xaiv xaiv cov kua roj vanish.
Cov sib xyaw ntawm hom varnish no sib txawv ntawm cov ntsiab lus ntawm cov rog. Roj varnishes thiab varnishes ntawm cov roj nruab nrab cov ntsiab lus yooj yim thiab zoo rau ntawm qhov chaw thiab, ntxiv rau cov nyhuv zoo nkauj, ua haujlwm tiv thaiv rau saum npoo. Cov kua roj vanish nrog cov feem pua ntawm cov rog tsawg, nce txog 55%, tsuas yog siv tshwj xeeb rau kev kho mob ntawm ntoo.
Dej-based acrylic varnishes
Kev xaiv ntawm cov kua roj vanish rau ntoo yog qhov ntau ntawm ib puag ncig. Cov khoom siv muaj kev nyab xeeb los ntawm qhov pom ntawm no, nws tsis muaj ntxhiab, thiab muab cov txheej txheem wood wood fireproof. Cov kua roj vanish no yog siv rau kev kho kom zoo nkauj tha xim sab hauv thiab sab nrauv. Lawv khaws cov qauv ntawm cov ntoo, thaum tsis muab yellowness, zoo li lwm hom varnishes. Feem ntau hauv cov khw muag khoom muaj tag nrho cov kab ntawm cov kua roj vanish uas muaj qib sib txawv ntawm cov duab ci. Cov nyiaj no tsis pom zoo rau cov chav uas muaj tsheb khiav ceev thiab hauv cov xwm txheej tsis tu ncua, cia nyob ib leeg ntawm qhov chaw siab siab. Ultraviolet rays tsis muaj kev cuam tshuam ntau cov kua roj vanish. Acrylic varnish dries tau ntev, nws yuav siv li 2 lub lis piam rau nws kom tiav daim duab tiav.
Nitrolacs
Hom kua roj vanish no yog siv rau cov ntoo sib txawv, tab sis feem ntau yog ua haujlwm sab hauv, vim nws tsis muaj qhov kev tiv taus UV rays. Hauv chav sov, cov roj ntsha nitro tseem tsis tau siv. Hauv lwm qhov xwm txheej, lawv tau zoo, vim tias lawv nkag mus sai sai rau ntoo, muab kev tiv thaiv kom ntseeg tau thiab qhuav sai sai, tsis pub dhau ob peb teev. Nws yog qhov tsim nyog yuav tau thov nitro lacquer hauv lub ntsuas pa, vim nws muaj cov kuab tshuaj uas muaj tshuaj lom ntau.
Cov kua roj polyurethane
Ntau zaus varnishes nrog polyurethane muaj pes tsawg leeg yog siv rau kev kho kom zoo nkauj sab nraum zoov. Hom nto moo tshaj plaws ntawm cov kua roj vanish no yog yacht. Nws tiv taus ya raws, hnav-resistant, withstands siab permeability. Qhov saum npoo ntawm ntoo tom qab txheej nrog polyurethane kua roj vanish feem ntau yog ci. Tsis tas li, cov cuab yeej no feem ntau siv rau kev ua rooj tog, thiab rau hauv pem teb, thiab txawm tias cov khoom me me sab hauv.
