Sealant rau seams yog ib qho nplaum thiab sealing loj rau sealing tawg thiab pob qij txha hauv cov tsev. Nws yog siv rau sealing qhov khoob hauv tsev thiab sab nraum zoov, thiab hauv masonry rau sealing. Kev sib txuas cov sealants raug xaiv nyob ntawm hom kev tsim kho (sab nrauv lossis sab hauv), cov yam ntxwv saum npoo thiab kev ua haujlwm (kub hloov pauv, av noo, hluav taws xob UV).
Nyob ntawm cov ntsaws ruaj ruaj
Los ntawm kev sib xyaw, lawv muab faib ua acrylic, polyurethane, silicone, bituminous thiab lwm yam.
Acrylic joint sealant yog cov khoom siv yas siv rau kev sib khi cov pob qij txha hauv plaster thiab ntoo, plasterboard tsim. Cov pob qij txha raug kho nrog lub sealant thaum txhim kho lub qhov rooj thiab qhov rais, kho cov rooj tog zaum, cov ntaub pua tsev, thiab tseem kaw cov kab nrib pleb hauv cov rooj tog zaum thiab phab ntsa. Lub sealant muaj cov coefficient siab ntawm adhesion rau qhov ntxeem tau ntawm qhov chaw (pob zeb, ntoo, cib, phab ntsa qhuav, plaster). Nws raug nquahu kom siv nws rau kev ua haujlwm sab hauv, thaum zam cov chav damp thiab cov pob qij txha ntawm cov kav dej. Acrylic sealantelastic, tab sis tsis zoo resistant rau deformation. Nws muaj kev kub siab ua haujlwm, UV tsis kam, ib puag ncig tus phooj ywg, yooj yim siv. Tom qab ua tiav, twb tom qab 45 feeb, ib zaj duab xis yog tsim, thiab tiav hardening tshwm sim nyob rau hauv ib hnub. Acrylic sealants yog dawb, tab sis tuaj yeem pleev xim thiab pleev xim rau lwm yam xim.
Silicon grout yog siv los kho thiab kev tsim kho kev ua haujlwm. Xws li ib tug sealant rau seams yog feem ntau. Nws yog zoo ua ke nrog yuav luag tag nrho cov ntaub ntawv (tshwj tsis yog Teflon, polyethylene thiab silicone), ntau elastic, tshav kub thiab huab cua resistant tshaj acrylic. Sealant tuaj yeem yog acid thiab nruab nrab. Thawj yog tsim nyog rau kev ua haujlwm nrog ceramics, ntoo thiab yas, thiab qhov thib ob yog siv rau txhua yam - ua npuas ncauj thiab pob zeb, ntoo, cib, plaster, PVC. Rau cov chav dej thiab chav dej, cov sealants nrog cov tshuaj tua kab mob yuav tsum tau siv los tiv thaiv pwm.
Cov khoom ntim no zam cov av noo thiab cua sov zoo, yog elastic thiab khaws lawv lub zog rau lub sijhawm ntev (txog 20 xyoo).
Polyurethane sealant rau seams yog siv rau kev ua hauj lwm façade, sealing foundations thiab ru tsev, glazing attic, rau sealing pob qij txha nyob rau hauv lub qhov cua tshuab. Nws yog tsim rau kev sib txuas cov seams ua los ntawm hlau, ntoo, yas, pob zeb, cib, pob zeb. Muaj adhesion zoo, nws yog siv los ua sealant rau interpanel seams. Qhov downside yog tias nws yog flammable thiab degrades sai sai thaum raug UV rays.
Sealant rau seams foams thaum nyem tawm ntawm lub raj mis (ntim nce 30-50 zaug). Sau cov seams yog pom zoo kom ua nyob rau hauv ob peb kauj ruam. Cov pob khoom (lub tog raj kheej) yog tsim nrog ua npuas ncauj rau kev tshaj lij thiab kev siv hauv tsev.
Muaj cov sealants nrog cov ntawv thov tshwj xeeb. Piv txwv li, butyl iav yog siv rau ob chav glazed qhov rais, raws li lawv yog vapor-permeable, elastic txaus, thiab resistant rau UV hluav taws xob. Lawv kuj tsim bituminous thiab thiokol sealants rau pob qij txha.
