Iijoyinti zoKwandisa zeKhonkrithi eziPhambili ezineeSealants zePolyurethane
Izakhiwo zekhonkrithi ziyanda kwaye zincipha rhoqo ngenxa yokuguquguquka kobushushu, utshintsho lokufuma, imithwalo yezithuthi, kunye nokuhamba kwesakhiwo. Ngaphandle kweendawo zokwandisa eziyilwe kakuhle, iislabhu zekhonkrithi ekugqibeleni ziyaqhekeka, zivumela ukungena kwamanzi, ukubola kwentsimbi eqinisayo, kunye nokonakala kwesakhiwo okubiza kakhulu.
I-polyurethane sealant esebenza kakuhle kwiindawo zokudibanisa zekhonkrithi yenye yezona zisombululo zisebenzayo zokukhusela iindawo zokudibanisa ngelixa zigcina ukuguquguquka phantsi kwentshukumo enamandla.
Esi sikhokelo sobugcisa sichaza yonke into ekufuneka izaziwe ziinjineli, abakhi, abasasazi, kunye nabaphathi beprojekthi malunga nokukhetha nokusebenzisa izitywina ze-polyurethane kwiindawo zokwandisa i-concrete, kubandakanya iindlela zokufakela, amandla okuhambisa, iindlela zokuphilisa, ukusilela okuqhelekileyo, kunye neendlela ezilungileyo zokulungisa.
Nokuba uvala iindlela ezinkulu, iindawo zokugcina impahla, iigaraji zokupaka, izikhululo zeenqwelo-moya, imigangatho yemizi-mveliso, okanye izakhiwo zorhwebo, esi sikhokelo siya kukunceda ufumane iindawo zokuhlala ezihlala ixesha elide, ezingangeni manzi ezihlala iminyaka.
Kutheni iiPolyurethane Sealants ziyiMigangatho yeGolide yeeJoints zoKwandiswa kweKhonkrithi
Izihlanganisi zesamente zifuna okungaphezulu nje kokugcwalisa umsantsa.
I-sealant kufuneka ngaxeshanye:
• Ukwamkela ukwanda kunye nokuncitshiswa
• Melana nokuvezwa yi-UV
• Ukumelana nezithuthi ezininzi
• Ukuthintela ukungena kwamanzi
• Gcina ukuthamba iminyaka
• Bopha ngamandla kwiziseko zekhonkrithi
Xa kuthelekiswa nezinye izinto ezininzi ezitywinayo, i-polyurethane inika ulungelelwaniso oluhle phakathi kokuguquguquka, ukunamathela, ukumelana nokukrweleka, kunye namandla oomatshini.
Iingenelo eziphambili
1. Amandla okuhamba agqwesileyo
Izakhiwo zekhonkrithi azihlali zingashukumi.
Utshintsho kubushushu bexesha lonyaka lunokubangela intshukumo ukusuka kwiimilimitha ezininzi ukuya kwiisentimitha.
Ii-polyurethane sealants zobungcali zihlala zibonelela:
• Amandla okushukuma angama-±25%
• Amanqaku eprimiyamu afikelela kwi-±35%
• Iifomyula ezinzima ezifikelela kwi-±50%
Oku kuthamba kuvumela i-sealant ukuba ifunxe intshukumo ngaphandle kokukrazuka okanye ukukhululwa kwe-bond.
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2. Ukunamathela okungaqhelekanga kwiConcrete
Ngokungafaniyo nezinye izinto zokuvala ezifuna unyango olunamandla lomphezulu, i-polyurethane ibophana ngeekhemikhali kwikhonkrithi elungiselelwe kakuhle.
Ukunamathela okugqwesileyo kunceda ukuthintela:
• Ukuphakamisa imiphetho
• Ukufuduka kwamanzi
• Ukungasebenzi kakuhle kwe-adhesive
• Ukwahlukana kwamalungu
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3. Amandla Oomatshini Aphezulu
Iindawo zokwakha zihlala zifumana oku kulandelayo:
• Itrafikhi yeforklift
• Iilori ezinkulu
• Ukulayisha iinqwelomoya
• Izithuthi zabahambi ngeenyawo
• Ukungcangcazela koomatshini bemizi-mveliso
Amandla aphezulu okutsalwa kwepolyurethane kunye nokumelana nokukrazuka kwenza ukuba ifaneleke ngakumbi kwezi ndawo zinzima.
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4. Ukhuseleko olungangeni manzi
Izitywina ze-PU ezifakwe kakuhle zenza umqobo ongangeni manzi oqhubekayo okhusela:
• Ukuqinisa intsimbi
• Iziseko
• Amagumbi angaphantsi komhlaba
• Izakhiwo zokupaka
• Iibhulorho
• Izibonelelo zoshishino
Ukuthintela ukungena komswakama kwandisa ubomi benkonzo yekhonkrithi.
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5. Ukumelana nokukrala okugqwesileyo
Xa kuthelekiswa nezinye izinto ezininzi ezitywinayo ze-silicone, i-polyurethane isebenza ngcono xa isetyenziswa ngoomatshini.
Oku kuyenza ifaneleke ngakumbi:
• Imigangatho yefektri
• Iidokhi zokulayisha
• Iindlela zokubaleka zeenqwelo moya kwisikhululo seenqwelo-moya
• Iindlela ezithe kratya
• Amaziko othutho
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Izicelo eziqhelekileyo
Iisealants zekhonkrithi zepolyurethane zisetyenziswa kakhulu kwezi:
• Iindawo zokwandisa umgangatho wemizi-mveliso
• Iindawo ezidityanisiweyo zendlela zesamente
• Iindawo zokwandisa iindlela ezinkulu
• Iindlela zeeteksi zesikhululo seenqwelo-moya
• Imigangatho yendlu yokugcina impahla
• Iigaraji zokupaka
• Iidekhi zeebhulorho
• Iindawo zokuhamba ngeenyawo
• Iindawo zokucoca amanzi
• Iislabhu zezakhiwo zorhwebo
• Amaziko othutho
• Iiworkshops zasefektri
Indlela yokukhetha i-Polyurethane Sealant efanelekileyo
Ayizizo zonke izitywina ze-polyurethane ezifanelekileyo kuyo yonke iprojekthi.
Ukukhetha kufuneka kuqwalasele izinto ezininzi zobunjineli.
1. Intshukumo Edibeneyo
Qinisekisa intshukumo elindelekileyo ngaphambi kokukhetha isitywini.
Iingcebiso ngokubanzi:
| Uhlobo oludibeneyo | Amandla okuHamba acetyiswayo |
| Izihlanganisi zangaphakathi zomgangatho | ±25% |
| Iipavumente zangaphandle | ±35% |
| Iindawo zokungena kwisikhululo seenqwelo-moya kunye nebhulorho | ±50% |
2. Umthwalo weTrafikhi
Kwizicelo ezinzima, beka phambili:
• Amandla aphezulu okuxinana
• Ubunzima beHigh Shore A
• Ukumelana kakuhle nokurhawuzelelwa
• Ukumelana nokukrala okunamandla
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3. Ukuvezwa kweMozulu
Iiprojekthi zangaphandle zifuna ukuxhathisa okugqwesileyo:
• Imitha ye-UV
• Imvula
• Imijikelo yokuqandisa nokunyibilikisa
• Ubushushu obugqithisileyo
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4. Isantya Sokunyanga
Izinto zokutywina ezikhawuleza zinceda ukunciphisa iishedyuli zeprojekthi.
Amaxabiso aqhelekileyo:
• Ukwakheka kolusu: imizuzu engama-60–120
• Unyango olupheleleyo: malunga ne-3–4 mm kwiiyure ezingama-24
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5. Ukusetyenziswa okuthe nkqo okanye okuthe tye
Khetha:
I-polyurethane engaboliyo
Ifanelekile kwi:
• Amalungu ami nkqo
• Iindawo zokudibanisa udonga
• Iifacade
• Ikhonkrithi elungisiweyo kwangaphambili
I-polyurethane ezenzela yona ngokwayo
Ifanelekile kwi:
• Iindawo ezidityanisiweyo zendlela ezithe tye
• Imigangatho yemizi-mveliso
• Iindlela
• Iindlela zokubaleka zeenqwelo moya kwisikhululo seenqwelo-moya
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Isikhokelo seNyathelo ngeNyathelo: Ukusebenzisa iPolyurethane Sealant ngokuchanekileyo
Ukufakelwa ngokufanelekileyo kuqinisekisa ukusebenza kwexesha elide ngaphezu kwe-sealant ngokwayo.
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Inyathelo 1. Hlola iJoint
Ngaphambi kokufakwa:
✔ Susa isitywini esidala
✔ Lungisa imiphetho yamalungu eyonakeleyo
✔ Qinisekisa ubukhulu bamalungu
✔ Qinisekisa ukuthembeka kwe-substrate
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Inyathelo lesi-2. Ukulungiswa komphezulu
Coca iindawo kakuhle.
Susa:
• Uthuli
• Ukufakwa kwesamente
• Ioyile
• Igrisi
• Amasuntswana akhululekileyo
• Ukufuma
Ikhonkrithi mayibe yomile ngaphambi kokuba isetyenziswe.
Ukulungiswa okungalunganga komphezulu kuseyeyona nto iphambili ebangela ukungasebenzi kakuhle kwe-sealant.
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Inyathelo lesi-3. Faka iBacker Rod
Iintonga zomqolo zinika imisebenzi emininzi ebalulekileyo:
• Ilawula ubunzulu besitywina
• Ithintela ukunamathelana kwamacala amathathu
• Kunciphisa ukusetyenziswa kwezinto eziphathekayo
• Iphucula ukuguquguquka kwamalungu
Umlinganiselo ocetyiswayo wobubanzi nobunzulu ngokubanzi yi-2:1.
Umzekelo:
Ububanzi bejoyinti: 20 mm
Ubunzulu besitywina: 10 mm
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Inyathelo lesi-4. Faka iPrimer (Ukuba iyafuneka)
Ikhonkrithi eneembobo ezininzi ingafuna i-primer ehambelanayo.
I-Primer iyaphucuka:
• Ukunamathela
• Ukuqina ixesha elide
• Ukumelana nokufuma
Landela rhoqo iingcebiso zomenzi.
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Inyathelo lesi-5. Faka i-Polyurethane Sealant
Ukusebenzisa umpu wobuchwephesha wokufaka i-caulking:
• Faka uxinzelelo oluqhubekayo
• Ziphephe iipokotho zomoya
• Gcwalisa ngokupheleleyo ijoyinti
• Ukuthintela ukwakheka kwesithuba esingenanto
Gcina isantya sokusetyenziswa esihambelanayo.
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Inyathelo 6. Sixhobo seJoint
Yithambise ngoko nangoko i-sealant.
Izixhobo ezifanelekileyo:
• Iphucula inkangeleko
• Isusa umoya ovalelekileyo
• Iphucula ukudibana kwe-substrate
• Ivelisa ijiyometri yamalungu efanayo
Isixhobo ngaphambi kokuba ulusu luqale ukwakheka.
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Inyathelo 7. Vumela ukuPhiliswa okuNgokufanelekileyo
Khusela amalungu asandul’ ukufakwa kwi:
• Imvula
• Uthuli
• Izithuthi ezininzi
• Impembelelo yoomatshini
Iimeko eziqhelekileyo zokunyanga:
Ubushushu:5–35°C
Ubuntu bezizalwane:40–70%
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Iimpazamo eziqhelekileyo zokufakela—kunye nendlela yokuziphepha
Impazamo 1: Ukufaka kwiKhonkrithi emanzi
Ukufuma kuhambelana nekhemikhali ye-polyurethane.
Iziphumo ziquka:
• Ukwakheka kwamaqamza
• Ukungabambeleli kakuhle
• Ukungalungiswa ngokupheleleyo
Qinisekisa ukuba i-substrate yomile rhoqo.
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Impazamo 2: Ubunzulu obungalunganga bamalungu
Amalungu anzulu kakhulu:
• Izinto ezilahlwayo
• Ukwandisa uxinzelelo lwangaphakathi
• Nciphisa ukuguquguquka
Iintonga zomqolo zinceda ukugcina ijometri efanelekileyo.
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Impazamo 3: Ukunamathela okuMacala Amathathu
I-sealant kufuneka inamathele kwiindonga ezimbini ezidibeneyo kuphela.Ukubopha ezantsi kwelungu kuyayithintela intshukumo kwaye kubangela ukungaphumeleli kwangethuba.
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Impazamo 4: Ukucoca kakubi
Uthuli lunciphisa kakhulu ukunamathela.Soloko ucoceka kwangoko ngaphambi kokuba uyisebenzise.
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Impazamo 5: Ukufaka isicelo ngexesha lemvula
Imvula ingenisa umswakama kwi-polyurethane enganyangekiyo.
Iziphumo:
• Iziphene zomphezulu
• Ukudumba
• Amandla ebhondi anciphileyo
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Kutheni iPolyurethane Sealants iBubble
Ukwakheka kwamaqamza yingxaki eqhelekileyo yentsimi.Ukuqonda ikhemistri kuyanceda ekuthinteleni oku.I-Polyurethane iyaphilisa ngokuphendula kumswakama womoya.Ukufuma okugqithisileyo kubangela ukuveliswa ngokukhawuleza kwekhabhoni dayokhsayidi.Igesi ibanjwa ngaphakathi kwi-sealant.
Isiphumo:
• Amaqamza
• Imingxunya yePini
• Izithuba zangaphakathi
Izizathu eziphambili ziquka:
• Izinto ezimanzi
• Umswakama ophezulu
• Usetyenziso olutyebileyo
• Ukuchatshazelwa yimvula
• Indawo yokugcina engafanelekanga
Uthintelo
• Gcina iikhatriji zivaliwe de zisetyenziswe
• Faka kuphela kwikhonkrithi eyomileyo
• Ziphephe iimeko zemvula
• Landela ubungakanani bamalungu obucetyiswayo
• Sebenzisa izinto ezintsha ngaphambi kokuba ziphelelwe lixesha
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Iiparameter zoBugcisa eziCetyisiweyo zeeJoints zeConcrete ezihamba kakhulu
| Ipharamitha | Ixabiso Elicetyiswayo | Inzuzo yoBunjineli |
| Amandla okuHamba | ±25% ukuya ku-±50% | Iphatha ukwanda kobushushu kunye nokucutheka |
| Ixesha Lolusu | imizuzu engama-60–120 | Ivumela ixesha elaneleyo lokusebenzisa izixhobo |
| Izinga lokunyanga | 3–4 mm/iiyure ezingama-24 | Ishedyuli yokwakha eqikelelweyo |
| Tensile strength | ≥1.2 MPa | Iyamelana nomthwalo onzima wezithuthi |
| Ukwandiswa ngexesha lokuphumla | ≥600% | Ukuguquguquka okugqwesileyo |
| Ubunzima be-Shore A | 25–40 | Ukuqina nokuqina okulinganayo |
| Ukunamathela | Igqibelele kakhulu kwiConcrete | Ukusebenza okungangeni manzi ixesha elide |
| Ukumelana ne-UV | Kulungile | Ukuqina kwangaphandle |
| Ubushushu beNkonzo | -40°C ukuya ku +90°C | Ifanelekile kwiimeko zemozulu eziqatha |
| Umxholo we-VOC | Iphantsi | Ulwakhiwo olunobuhlobo nokusingqongileyo |
Ukugcinwa kunye nokuhlolwa
Nangona izitywini ze-polyurethane zibonelela ngobomi obude, kuyacetyiswa ukuba zihlolwe rhoqo.
Jonga rhoqo ngonyaka:
• Ukuqhekeka
• Ukwahlulwa komphetho
• Umonakalo woomatshini
• Uhlaselo lweekhemikhali
• Ukuguguleka okugqithisileyo
Ukulungiswa ngokukhawuleza kuthintela amanzi ukuba angafikeleli kwikhonkrithi yokwakha.
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I-Polyurethane vs i-Silicone yoKwandisa iiJoints zeKhonkrithi
| Ipropati | I-Polyurethane | I-silicone |
| Ukuncamathela kwekhonkrithi | Igqwesile | Kulungile |
| Ukumelana nokurhawuzelelwa | Igqwesile | Iphakathi |
| Ukupeyinta | Ewe | No |
| Itrafikhi Enzima | Igqwesile | Inomda |
| Ukubuyiselwa kwe-Elastic | Igqwesile | Igqwesile |
| Ukumelana ne-UV | Kakuhle kakhulu | Igqwesile |
| Amandla oomatshini | Phezulu | Phakathi |
Kwindlela yokuhamba ngeenyawo, umgangatho wemizi-mveliso, iindawo zokugcina impahla, iindlela ezinkulu, kunye neendawo zokudibanisa izikhululo zeenqwelo-moya, i-polyurethane ngokubanzi sisisombululo sobunjineli esikhethwayo ngenxa yokusebenza kwayo okuphezulu koomatshini.
Iingcebiso zobungcali ezivela kwiingcali zoshishino
Abaphathi beekontraka abanamava bahlala belandela le migaqo ilungileyo:
• Yila iindawo zokudibanisa ngaphambi kokukhetha izinto zokuvala.
• Thelekisa amandla okushukuma nentshukumo yesakhiwo elindelekileyo.
• Ungaze uphoswe kukulungiselela umphezulu.
• Sebenzisa iintonga zomqolo rhoqo kwiindawo ezinzulu zokudibanisa amalungu.
• Isixhobo emva nje kokusetyenziswa.
• Khusela amalungu amatsha ngexesha lokunyangwa.
• Gcina iikhatriji kwiimeko ezipholileyo nezomileyo.
• Landela imiyalelo yokufakela umenzi.
Kutheni Ufanele Ukhethe I-SIWAY Polyurethane Sealants?
Abavelisi beSIWAYIzitywini zokwakha ze-polyurethane ezisebenza kakuhle ezenzelwe ukufuna iziseko zophuhliso kunye nezicelo zorhwebo.
Iingenelo eziphambili ziquka:
• Ukunamathela okugqwesileyo kwikhonkrithi, udonga, intsimbi, kunye ne-aluminium
• Amandla aphezulu okunyakaza kwamalungu aguqukayo
• Ukukrala okumangalisayo kunye nokumelana nemozulu
• Ukukhupha kunye nezixhobo ezilula
• Ubomi benkonzo ende phantsi kweemeko ezinzima
• Ifumaneka ngeendlela ezingezizo ezomileyo nezizilinganisayo
• Ukuveliswa kweelebhile ze-OEM kunye nezabucala kuyafumaneka
• Umgangatho ohlala uhleli oxhaswa ziinkqubo zemveliso ezingqongqo kunye nolawulo lomgangatho
Nokuba iprojekthi yakho ibandakanya umgangatho wemizi-mveliso, iindlela zeenqwelo moya, iindlela ezinkulu, iibhulorho, okanye izakhiwo zorhwebo, izitywini ze-SIWAY polyurethane zenzelwe ukubonelela ngokukhusela amanzi okuthembekileyo kunye nokukhusela amalunga ixesha elide.
Imveliso Ecetyiswayo:Isitywini soKwakha se-SV811FC Polyurethane– Ilungele ukwandiswa kwekhonkrithi ngokuthe nkqo nangokuthe tye, inika ukuthamba okuphezulu, ukunamathela okuqinileyo, kunye nokumelana okuhle kakhulu nemozulu.
Imveliso Enxulumeneyo:I-SV313 Self-Leveling Polyurethane Sealant– Yenzelwe ngokukodwa iindawo zokwandisa ezithe tye ezindleleni, kwizikhululo zeenqwelo-moya, kwiibhulorho, nakwiindawo zoshishino.
Iikhonkco zangaphakathi ezicetyiswayo
•Iphepha leMveliso ye-SV811FC Polyurethane Construction Sealant
•Iphepha leMveliso ye-SV313 Self-Leveling Polyurethane Sealant
•Isikhokelo sokuthelekisa iPolyurethane Sealant vs Silicone Sealant
•Isikhokelo esipheleleyo sokuthenga i-Construction Sealant
• Isikhokelo soYilo oluManyeneyo loKwandiswa kweKhonkrithi
Ukukhethaisitywini se-polyurethane sasekunenelinyathelo lokuqala kuphela lokufikelela ku-diindawo zokwandisa zekhonkrithi ezigugileyo.Uyilo olufanelekileyo lwamalungu, ukulungiswa komphezulu ngononophelo, iindlela zokufakela ngokuchanekileyo, kunye nokunamathela kwiimfuno zokunyanga zibaluleke ngokulinganayo ekusebenzeni ixesha elide.
Ngokudibanisa i-polyurethane sealant esemgangathweni ophezulu kunye neendlela ezilungileyo zoshishino, iinjineli kunye nabakhi banokunciphisa kakhulu iindleko zokugcina izinto, bathintele ukungena kwamanzi, kwaye bandise ubomi benkonzo yeziseko zophuhliso zekhonkrithi. Kwiiprojekthi zokwakha ezifuna amandla, izisombululo ezifanaSIWAY SV811FC kunye ne-SV313 Self-Leveling Polyurethane Sealantukubonelela ngokuguquguquka, ukunamathela, kunye nokuqina okufunekayo ukukhusela amalunga okwandisa phantsi kweemeko zokwenyani ngelixa kuxhaswa ukuthembeka kwesakhiwo ixesha elide kunye nokusebenza okungangeni manzi.
Q1: Ngaba i-polyurethane sealant ingafakwa ngqo kwikhonkrithi?
A: Ewe. Ikhonkrithi elungiselelwe kakuhle inika ukunamathela okuhle kakhulu. Ii-substrates ezinemingxuma kakhulu zinokufuna i-primer ukuze ziqinise ukubopha ixesha elide.
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Q2: Ihlala ixesha elingakanani i-polyurethane sealant kwiindawo zekhonkrithi?
A: Xa zifakelwe kwaye zigcinwa ngokuchanekileyo, izitywini ze-polyurethane ezikumgangatho ophezulu zihlala zibonelela ngenkonzo yeminyaka eli-10 ukuya kwengama-20, kuxhomekeke kumthwalo wezithuthi, uyilo lwejoyinti, kunye neemeko zokusingqongileyo.
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Umbuzo 3: Ngaba i-polyurethane ingcono kune-silicone kwiijoyinti zokwandisa?
A: Kwizicelo zekhonkrithi ezinzima ezifana neendlela zokuhamba, imigangatho yemizi-mveliso, iibhulorho, kunye nezakhiwo zokupaka, i-polyurethane ngokubanzi inika ukunamathela okuphezulu, ukumelana nokukrweleka, kunye namandla oomatshini. I-Silicone ihlala ilukhetho oluhle apho ukumelana okuphezulu kwe-UV okanye ukuthintela imozulu kwiglasi kuyeyona nto iphambili.
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Q4: Ngaba i-polyurethane sealant ingapeyintwa?
A: Ewe. Uninzi lwezitywini ze-polyurethane ziyapeyintwa emva kokuba zilungisiwe ngokupheleleyo, nto leyo eyenza ukuba zilungele ukusetyenziswa kwekhonkrithi yokwakha nokuhombisa.
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Umbuzo 5: Kutheni i-backer rod ibalulekile?
A: Intonga yomqolo ilawula ubunzulu be-sealant, ithintela ukunamathelana kwamacala amathathu, iphucula ukuguquguquka kwamalungu, inciphisa ukusetyenziswa kwezinto, kwaye inceda ukuqinisekisa iprofayili ye-sealant emile kakuhle.
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Umbuzo 6: Ijoyinti ingachatshazelwa nini ziimoto?
A: Oku kuxhomekeke kwifom yesitywina, ubukhulu bamalungu, kunye neemeko zokusingqongileyo. Ngokubanzi, amalungu kufuneka ahlale ekhuselekile de isitywina siphile ngokupheleleyo ngokweengcebiso zomenzi.
Ixesha lokuthumela: Agasti-07-2026