Amajoyinti Okukhulisa Ukhonkolo Ayinhloko Anezivalo Ze-Polyurethane
Izakhiwo zekhonkrithi zikhula futhi zincipha njalo ngenxa yokushintshashintsha kwezinga lokushisa, izinguquko zomswakama, imithwalo yethrafikhi, kanye nokunyakaza kwesakhiwo. Ngaphandle kwamajoyinti okunwebeka aklanywe kahle, ama-slab ekhonkrithi agcina eqhekekile, okuvumela ukungena kwamanzi, ukugqwala kwensimbi eqinisayo, kanye nokuwohloka kwesakhiwo okubizayo.
I-polyurethane sealant esebenza kahle kakhulu yamalunga ekhonkrithi ingenye yezixazululo eziphumelela kakhulu zokuvikela amalunga okunwebeka ngenkathi igcina ukuguquguquka ngaphansi kokunyakaza okunamandla.
Lo mhlahlandlela wezobuchwepheshe uchaza konke onjiniyela, osonkontileka, abasabalalisi, kanye nabaphathi bephrojekthi okudingeka bakwazi mayelana nokukhetha nokusebenzisa izithiyo ze-polyurethane zokuqinisa amajoyinti okunweba ukhonkolo, okuhlanganisa amasu okufaka, ikhono lokunyakaza, izindlela zokulungisa, ukwehluleka okuvamile, kanye nemikhuba emihle yokulungisa.
Kungakhathaliseki ukuthi uvala imigwaqo emikhulu, izindawo zokugcina impahla, amagalaji okupaka, izikhumulo zezindiza, izitezi zezimboni, noma izakhiwo zezentengiselwano, lo mhlahlandlela uzokusiza ukuthi uthole izindawo zokuhlala eziqinile, ezingangeni manzi ezihlala iminyaka eminingi.
Kungani Ama-Polyurethane Sealants Eyindinganiso Yegolide Yamajoyinti Okukhulisa Ukhonkolo
Ukuhlanganiswa kwekhonkrithi kudinga okungaphezu nje kokugcwalisa isikhala.
I-sealant kumele ngesikhathi esisodwa:
• Vumela ukwanda kanye nokufinyela
• Melana nokuchayeka kwi-UV
• Ukumelana nethrafikhi enkulu
• Vimbela ukungena kwamanzi
• Gcina ukunwebeka iminyaka eminingi
• Ibopha ngokuqinile ezisekelweni zekhonkrithi
Uma kuqhathaniswa nezinye izinto eziningi ezivalekile, i-polyurethane inikeza ibhalansi enhle kakhulu phakathi kokuguquguquka, ukunamathela, ukumelana nokuguguleka, kanye namandla okusebenza.
Izinzuzo Eziyinhloko
1. Amandla Okunyakaza Avelele
Izakhiwo zekhonkrithi azihlali zimile.
Izinguquko zokushisa kwesizini zingabangela ukunyakaza okusukela kumamilimitha amaningana kuya kumasentimitha.
Ama-polyurethane sealant angochwepheshe avame ukuhlinzeka:
• Amandla okunyakaza angu-±25%
• Amabanga aphezulu afinyelela ku-±35%
• Amafomula anzima afinyelela ku-±50%
Lokhu kunwebeka kuvumela i-sealant ukuthi imunce ukunyakaza ngaphandle kokudabula noma ukuhlukana.
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2. Ukunamathela Okumangalisayo Kukhonkolo
Ngokungafani nezinye izinto zokuvala ezidinga ukwelashwa okunamandla komhlaba, i-polyurethane ibopha ngamakhemikhali kukhonkrithi elungiselelwe kahle.
Ukunamathela okuhle kakhulu kusiza ukuvimbela:
• Ukuphakamisa imiphetho
• Ukufuduka kwamanzi
• Ukwehluleka kokunamathela
• Ukuhlukaniswa kwamalunga
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3. Amandla Aphezulu Okusebenza Kwemishini
Amajoyinti okwakha avame ukuzwa:
• Ithrafikhi ye-Forklift
• Amaloli amakhulu
• Ukulayisha izindiza
• Ithrafikhi yabahamba ngezinyawo
• Ukudlidliza kwemishini yezimboni
Amandla aphezulu okudonseka kwe-polyurethane kanye nokumelana nokudabuka kwenza ifaneleke kakhulu kulezi zindawo ezidinga kakhulu.
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4. Ukuvikelwa Okungangeni Manzi
Ama-sealant e-PU afakwe kahle adala isithiyo esingangeni manzi esiqhubekayo esivikela:
• Ukuqinisa insimbi
• Izisekelo
• Izindlu zangaphansi
• Izakhiwo zokupaka
• Amabhuloho
• Izakhiwo zezimboni
Ukuvimbela ukungena komswakama kwandisa kakhulu impilo yenkonzo yekhonkrithi.
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5. Ukumelana Okuhle Kakhulu Kokuhuzuka
Uma kuqhathaniswa nezinye izinto eziningi zokuvala i-silicone, i-polyurethane ngokuvamile isebenza kangcono uma igqokwa ngomshini.
Lokhu kwenza kube kuhle kakhulu ku:
• Izitezi zasefektri
• Ukulayisha ama-dock
• Izindawo zokubalekela izindiza
• Imigwaqo emikhulu
• Izikhungo zezokuthutha
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Izicelo Ezijwayelekile
Ama-sealant e-polyurethane concrete joint asetshenziswa kabanzi ku:
• Izindawo zokunwetshwa kwephansi lezimboni
• Izindawo zokuhlangana kwemigwaqo ezikhonkolo
• Izindawo zokwandisa umgwaqo omkhulu
• Imigwaqo yamatekisi esikhumulweni sezindiza
• Izitezi zendlu yokugcina impahla
• Amagaraji okupaka
• Amadekhi amabhuloho
• Izindawo zokuhamba eceleni komgwaqo
• Izindawo zokuhlanza amanzi
• Ama-slab ezakhiwo zezentengiselwano
• Izikhungo zezokuthutha
• Ama-workshop asefektri
Indlela Yokukhetha I-Polyurethane Sealant Efanele
Akuwona wonke ama-polyurethane sealant afanelekela yonke iphrojekthi.
Ukukhetha kufanele kucabangele izici eziningana zobunjiniyela.
1. Ukunyakaza Okuhlangene
Nquma ukunyakaza okulindelekile ngaphambi kokukhetha i-sealant.
Izincomo ezijwayelekile:
| Uhlobo Lokuhlangana | Amandla Okunyakaza Anconyiwe |
| Izihlanganisi zangaphakathi zephansi | ±25% |
| Izindawo zokuhamba zangaphandle | ±35% |
| Izindawo zokungena esikhumulweni sezindiza kanye nebhuloho | ±50% |
2. Umthwalo Wethrafikhi
Ngezicelo ezisebenza kanzima, beka phambili:
• Amandla aphezulu okunamathela
• Ukuqina kwe-High Shore A
• Ukumelana okuhle kakhulu nokuklwebheka
• Ukumelana okunamandla kokunyenya
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3. Ukuchayeka Esimweni Sezulu
Amaphrojekthi angaphandle adinga ukumelana okuhle kakhulu nalokhu:
• Imisebe ye-UV
• Imvula
• Imijikelezo yokuqandisa nokuncibilikisa
• Izinga lokushisa eliphakeme kakhulu
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4. Isivinini Sokwelapha
Ama-sealant aqina ngokushesha asiza ukufinyeza amashejuli ephrojekthi.
Amanani ajwayelekile:
• Ukwakheka kwesikhumba: imizuzu engama-60–120
• Ukwelashwa okuphelele: cishe amamilimitha angu-3–4 emahoreni angu-24
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5. Isicelo Esiqondile noma Esivundlile
Khetha:
I-polyurethane engaboli
Kufanelekela:
• Amalunga aqondile
• Amalunga odonga
• Ama-facade
• Ukhonkolo oqoshiwe kusengaphambili
I-polyurethane ezilinganisayo
Kufanelekela:
• Izindawo zokuhamba ngezinyawo ezivundlile
• Izitezi zezimboni
• Imigwaqo
• Izindawo zokubalekela izindiza
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Umhlahlandlela Wesinyathelo Ngesinyathelo: Ukusebenzisa I-Polyurethane Sealant Ngokufanele
Ukufakwa kahle kunquma ukusebenza kwesikhathi eside ngaphezu kwe-sealant uqobo.
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Isinyathelo 1. Hlola i-Joint
Ngaphambi kokufakwa:
✔ Susa isivalo esidala
✔ Lungisa imiphetho yamalunga eyonakele
✔ Qinisekisa ubukhulu bamalunga
✔ Qinisekisa ubuqotho be-substrate
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Isinyathelo 2. Ukulungiselela Okungaphezulu
Hlanza izindawo kahle.
Susa:
• Uthuli
• Ukufakwa kukasimende
• Amafutha
• Igrisi
• Izinhlayiya ezikhululekile
• Umswakama
Ukhonkolo kufanele wome ngaphambi kokufaka.
Ukulungiswa okungekuhle kobuso kusalokhu kuyimbangela ehamba phambili yokwehluleka kwe-sealant.
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Isinyathelo 3. Faka i-Backer Rod
Izinduku zokusekela zinikeza imisebenzi eminingana ebalulekile:
• Ilawula ukujula kwesivalo
• Kuvimbela ukunamathela okunezinhlangothi ezintathu
• Kunciphisa ukusetshenziswa kwezinto ezibonakalayo
• Kuthuthukisa ukuguquguquka kwamalunga
Isilinganiso esinconywayo sobubanzi nobubanzi ngokuvamile singu-2:1.
Isibonelo:
Ububanzi bejoyinti: 20 mm
Ukujula kwesivalo: 10 mm
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Isinyathelo 4. Sebenzisa i-Primer (Uma Kudingeka)
Ikhonkrithi enezimbobo eziningi ingadinga i-primer ehambisanayo.
I-Primer iyathuthuka:
• Ukunamathela
• Ukuqina kwesikhathi eside
• Ukumelana nomswakama
Landela njalo izincomo zomenzi.
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Isinyathelo 5. Faka i-Polyurethane Sealant
Ukusebenzisa isibhamu sobuchwepheshe sokubopha i-caulking:
• Faka ingcindezi eqhubekayo
• Gwema ama-air pocket
• Gcwalisa ngokuphelele ijoyinti
• Vimbela ukwakheka kwesikhala
Gcina isivinini sokusebenza esihambisanayo.
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Isinyathelo 6. Ithuluzi Lokuhlanganisa
Hlehlisa ngokushesha isivalo.
Amathuluzi afanele:
• Kuthuthukisa ukubukeka
• Kuqeda umoya ovalelekile
• Kuthuthukisa ukuthintana kwe-substrate
• Kukhiqiza i-geometry yamalunga efanayo
Ithuluzi ngaphambi kokuba isikhumba siqale ukwakheka.
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Isinyathelo 7. Vumela Ukwelashwa Okufanele
Vikela amalunga asanda kufakwa ku:
• Imvula
• Uthuli
• Ithrafikhi enkulu
• Umthelela wemishini
Izimo ezijwayelekile zokuphulukisa:
Izinga lokushisa:5–35°C
Umswakama Olinganiselwe:40–70%
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Amaphutha Okufaka Avamile—Nendlela Yokuwagwema
Iphutha 1: Ukufaka Kukhonkolo Omanzi
Umswakama usabela nge-polyurethane chemistry.
Imiphumela ihlanganisa:
• Ukwakheka kwamabhamuza
• Ukunamathela okubi
• Ukwelashwa okungaphelele
Qiniseka njalo ukuthi i-substrate yomile.
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Iphutha 2: Ukujula Kwamalunga Okungalungile
Amalunga ajule kakhulu:
• Izinto ezilahlwayo
• Khulisa ukucindezeleka kwangaphakathi
• Nciphisa ukuguquguquka
Izinduku zangemuva zisiza ukugcina i-geometry efanele.
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Iphutha 3: Ukunamathela Okunezinhlangothi Ezintathu
I-sealant kufanele iboshwe ezindongeni ezimbili ezihlangene kuphela.Ukubopha phansi kwejoyinti kuvimbela ukunyakaza futhi kubangela ukwehluleka kwangaphambi kwesikhathi.
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Iphutha 4: Ukuhlanza Okubi
Uthuli lunciphisa kakhulu ukunamathela.Hlanza njalo ngaphambi kokufaka.
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Iphutha 5: Ukufaka Isicelo Ngesikhathi Semvula
Imvula ifaka umswakama ku-polyurethane engakapheki.
Imiphumela:
• Amaphutha ebusweni
• Ukuqhumisa
• Amandla esibopho anciphile
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Kungani i-Polyurethane Sealants iqhubu
Ukwakheka kwamabhamuza kuyinkinga evamile ensimini.Ukuqonda i-chemistry kuyasiza ekuvimbeleni.I-polyurethane iyaphulukisa ngokusabela nomswakama womoya.Umswakama omningi ubangela ukukhiqizwa okusheshayo kwe-carbon dioxide.Igesi ivalelwa ngaphakathi kwe-sealant.
Umphumela:
• Amabhamuza
• Izimbobo ze-Pinhole
• Izimbobo zangaphakathi
Izimbangela eziyinhloko zifaka:
• Izisekelo ezimanzi
• Umswakama ophezulu
• Izinhlelo zokusebenza ezijiyile
• Ukuchayeka emvuleni
• Isitoreji esingafanele
Ukuvimbela
• Gcina amakhatriji evaliwe kuze kube yilapho esetshenziswa
• Faka kuphela kukhonkolo owomile
• Gwema izimo zemvula
• Landela ubukhulu obunconywayo bamalunga
• Sebenzisa izinto ezintsha ngaphambi kokuphelelwa yisikhathi
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Amapharamitha Obuchwepheshe Anconyiwe Amalunga Ekhonkrithi Ahamba Kakhulu
| Ipharamitha | Inani Elinconywayo | Inzuzo Yobunjiniyela |
| Amandla Okunyakaza | ±25% kuya ku-±50% | Iphatha ukwanda nokuncipha kokushisa |
| Isikhathi Sesikhumba | Imizuzu engama-60–120 | Ivumela isikhathi esanele sokusebenzisa amathuluzi |
| Izinga Lokwelapha | 3–4 mm/amahora angu-24 | Uhlelo lokwakha olubikezelwayo |
| Amandla Okudonsa | ≥1.2 MPa | Iyamelana nokulayisha kwethrafikhi eningi |
| Ukwelula Ngesikhathi Sokuphumula | ≥600% | Ukuguquguquka okuhle kakhulu |
| Ukuqina Kogu lolwandle | 25–40 | Ukuqina nokuqina okulinganiselayo |
| Ukunamathela | Kuhle kakhulu ku-Concrete | Ukusebenza okungangeni manzi isikhathi eside |
| Ukumelana ne-UV | Kuhle | Ukuqina kwangaphandle |
| Izinga Lokushisa Lesevisi | -40°C kuya ku-+90°C | Ifanele izimo zezulu ezimbi kakhulu |
| Okuqukethwe kwe-VOC | Phansi | Ukwakhiwa okunobungani nemvelo |
Ukugcinwa Nokuhlolwa
Nakuba izivalo ze-polyurethane zinikeza impilo ende yenkonzo, kunconywa ukuhlolwa njalo.
Hlola minyaka yonke:
• Ukuqhekeka
• Ukuhlukaniswa komphetho
• Umonakalo wemishini
• Ukuhlaselwa ngamakhemikhali
• Ukuguga ngokweqile
Ukulungiswa okusheshayo kuvimbela amanzi ukuthi angafiki kukhonkolo yesakhiwo.
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I-Polyurethane vs i-Silicone Yokunwetshwa Kwamajoyinti Kakhonkolo
| Impahla | I-Polyurethane | I-Silicone |
| Ukunamathela ngokhonkolo | Kuhle kakhulu | Kuhle |
| Ukumelana Nokuguguleka | Kuhle kakhulu | Okumaphakathi |
| Ukupendwa kalula | Yebo | No |
| Ithrafikhi Enkulu | Kuhle kakhulu | Kunqunyelwe |
| Ukubuyiselwa Kwe-Elastic | Kuhle kakhulu | Kuhle kakhulu |
| Ukumelana ne-UV | Kuhle kakhulu | Kuhle kakhulu |
| Amandla Okusebenza | Phezulu | Okuphakathi nendawo |
Ngokuphathelene nemigwaqo, phansi kwezimboni, izindawo zokugcina impahla, imigwaqo emikhulu, kanye nezindawo zokuhlangana zezindiza, i-polyurethane ngokuvamile iyisisombululo sobunjiniyela esithandwayo ngenxa yokusebenza kwayo okuhle kakhulu kwemishini.
Amathiphu Ochwepheshe Avela Kuchwepheshe Bemboni
Osonkontileka abanolwazi balandela njalo le mikhuba emihle kakhulu:
• Yakha amajoyinti ngaphambi kokukhetha izinto zokuvala.
• Qondanisa ikhono lokunyakaza nokunyakaza kwesakhiwo okulindelekile.
• Ungalokothi weqe ukulungiswa kwendawo.
• Sebenzisa izinduku zokusekela njalo emalungeni ajulile.
• Ithuluzi ngokushesha ngemva kokusebenzisa.
• Vikela amalunga amasha ngesikhathi sokuqina.
• Gcina amakhatriji ezindaweni ezipholile nezomile.
• Landela imiyalelo yokufaka yomkhiqizi.
Kungani Kufanele Ukhethe Izivalo Ze-SIWAY Polyurethane?
Abakhiqizi be-SIWAYizivalo zokwakha ze-polyurethane ezisebenza kahle kakhulu ezenzelwe ingqalasizinda edingayo kanye nezicelo zezentengiselwano.
Izinzuzo ezibalulekile zifaka:
• Ukunamathela okuhle kakhulu kukhonkrithi, ukhuni, insimbi, kanye ne-aluminium
• Amandla aphezulu okunyakaza kwamalunga aguqukayo
• Ukuguguleka okumangalisayo kanye nokumelana nesimo sezulu
• Ukukhipha kanye nokusebenzisa amathuluzi okulula
• Impilo ende yenkonzo ngaphansi kwezimo ezinzima
• Itholakala kokubili ngezindlela ezinganciphisi ukuqina kanye nezinga lomzimba
• Ukukhiqizwa kwelebula le-OEM kanye nelebula langasese kuyatholakala
• Ikhwalithi eqhubekayo esekelwa izinhlelo zokukhiqiza eziqinile kanye nokulawula ikhwalithi
Kungakhathaliseki ukuthi iphrojekthi yakho ihilela phansi kwezimboni, imigwaqo yezindiza, imigwaqo emikhulu, amabhuloho, noma izakhiwo zezentengiselwano, ama-sealant e-SIWAY polyurethane aklanyelwe ukuletha ukuvikela okuthembekile kokuvikela amalunga isikhathi eside.
Umkhiqizo Onconyiwe:Isivali Sokwakha se-SV811FC Polyurethane– Kuhle kakhulu ekunwetshweni kwekhonkrithi okuqondile nokuvundlile, okunikeza ukunwebeka okuphezulu, ukunamathela okuqinile, kanye nokumelana nesimo sezulu okuhle kakhulu.
Umkhiqizo Ohlobene:I-SV313 Self-Leveling Polyurethane Sealant– Yakhelwe ngqo izindawo zokunwebeka ezivundlile emigwaqweni, ezikhumulweni zezindiza, emabhulohweni, nasezitezi zezimboni.
Izixhumanisi Zangaphakathi Eziphakanyisiwe
•Ikhasi Lomkhiqizo Wesivalo Sokwakha i-SV811FC Polyurethane
•Ikhasi Lomkhiqizo Wesivalo Se-Polyurethane Esizilinganisayo se-SV313
•Umhlahlandlela Wokuqhathanisa I-Polyurethane Sealant vs Silicone Sealant
•Umhlahlandlela Ophelele Wokuthenga I-Construction Sealant
• Umhlahlandlela Wokwakhiwa Kwenhlanganisela Yokunwetshwa Kwekhonkrithi
Ukukhethaisivali se-polyurethane sangakwesokudlakuyisinyathelo sokuqala nje sokufinyelela ku-dizindawo zokwandisa ukhonkolo ezisebenzisekayo.Ukwakheka kahle kwamalunga, ukulungiswa kwendawo ngokucophelela, amasu okufaka afanele, kanye nokunamathela ezidingweni zokulungisa kubaluleke ngokulinganayo ekusebenzeni kwesikhathi eside.
Ngokuhlanganisa i-polyurethane sealant esezingeni eliphezulu nemikhuba emihle embonini, onjiniyela kanye nabakhi banganciphisa kakhulu izindleko zokulungisa, bavimbele ukungena kwamanzi, futhi bandise impilo yenkonzo yengqalasizinda yekhonkrithi. Kumaphrojekthi okwakha adinga amandla, izixazululo ezifanaI-SIWAY SV811FC kanye ne-SV313 Self-Leveling Polyurethane Sealantukuhlinzeka ngokuguquguquka, ukunamathela, kanye nokuqina okudingekayo ukuvikela amalunga okunwebeka ngaphansi kwezimo zangempela ngenkathi kusekelwa ukuthembeka kwesakhiwo isikhathi eside kanye nokusebenza okungangeni manzi.
Q1: Ingabe i-polyurethane sealant ingasetshenziswa ngqo kukhonkolo?
A: Yebo. Ikhonkrithi elungiselelwe kahle inikeza ukunamathela okuhle kakhulu. Ama-substrate anezimbobo eziningi angadinga i-primer ukuze andise ukubopha kwesikhathi eside.
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Q2: I-polyurethane sealant ihlala isikhathi esingakanani ezinhlanganisweni zekhonkrithi?
A: Uma zifakwe futhi zinakekelwa kahle, izithiyo ze-polyurethane ezisezingeni eliphezulu zivame ukunikeza iminyaka eyi-10-20 yesevisi, kuye ngomthwalo wethrafikhi, ukwakheka kwamalunga, kanye nezimo zemvelo.
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Q3: Ingabe i-polyurethane ingcono kune-silicone yamalunga okunwetshwa?
A: Ngezicelo zekhonkrithi ezisindayo njengezindlela zokuhamba ngezinyawo, phansi kwezimboni, amabhuloho, kanye nezakhiwo zokupaka, i-polyurethane ngokuvamile inikeza ukunamathela okuphezulu, ukumelana nokuhuzuka, kanye namandla omshini. I-Silicone isalokhu iyisinqumo esihle kakhulu lapho ukumelana okuphezulu kwe-UV noma ukuvikela isimo sezulu kusuka engilazini kuya engilazini kuyimfuneko eyinhloko.
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Q4: Ingabe i-polyurethane sealant ingapendwa?
A: Yebo. Iningi lama-polyurethane sealant liyapendwa ngemva kokulungiswa ngokuphelele, okwenza lifaneleke ukusetshenziswa kwekhonkrithi yokwakha nokuhlobisa.
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Umbuzo 5: Kungani induku yokusekela ibalulekile?
A: Induku yokusekela ilawula ukujula kwe-sealant, ivimbela ukunamathelana kwezinhlangothi ezintathu, ithuthukisa ukuguquguquka kwamalunga, inciphisa ukusetshenziswa kwezinto, futhi isiza ukuqinisekisa iphrofayili ye-sealant emile kahle.
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Umbuzo 6: Ijoyinti lingabonakala ngokushesha kangakanani ezimotweni?
A: Lokhu kuncike ekwakhiweni kwe-sealant, ubukhulu bamalunga, kanye nezimo zemvelo. Ngokuvamile, amalunga kufanele ahlale evikelwe kuze kube yilapho i-sealant isipholile ngokuphelele ngokwezincomo zomenzi.
Isikhathi sokuthunyelwe: Agasti-07-2026