Li-sealant tsa polyurethane (PU) li fetohile thepa ea bohlokoa kahong ea sejoale-joale ka lebaka la ho tenyetseha ha tsona ho ikhethang, matla a mechini, le ho hanyetsa tikoloho nako e telele. Ha li sebelisoa ka nepo, li-sealant tsa PU li atolosa haholo potoloho ea bophelo ba meaho, meralo ea motheo, 'mele ea likoloi, lisebelisoa tsa indasteri le litsamaiso tsa fatše. Sengoloa sena se hlalosa kamoo li-sealant tsa polyurethane li ntlafatsang ho tšoarella ha meaho - li tšehetsoa ke litšupiso tsa litsebi, temohisiso e sebetsang ea boenjiniere, le lihokelo tsa kahare.
1. Matla a Phahameng a ho Kgomarela a Ntlafatsa Nako ya Bophelo ya Karolo
Lebaka le leng la mantlha leo ka lona li-sealant tsa PU li tlatsetsang ho tšoarelleng ha nako e telele ke ho khomarela ha tsona ka mokhoa o ikhethang ho mefuta e mengata ea li-substrate:
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--Konkreite
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--Aluminium le litšepe tse koahetsoeng
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--PVC le dipolasetiki tse ding
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--Lejoe, 'mabole le granite
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--Lehong le thepa e kopaneng
Ho fapana le di-sealant tsa silicone, tse ikgethileng ka ho thibela boemo ba lehodimo empa hangata di thatafallwa ke ho kgomarela ha sebopeho, polyurethane e bopatlamo e matla ea mechini, e leng se etsang hore e be e loketseng bakeng sa:
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--Tshwaragano ya sebopeho
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--Manonyeletso a katoloso
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--Fatše e boima
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--Kopano ea indasteri
*Ithute haholoanyane ka li-sealant tsa polyurethane tsa Siway:
2. Ho tenyetseha ho ikhethang bakeng sa manonyeletso a tsamaeang ka lebelo le phahameng
Hangata li-sealant tsa PU li fana kaBokhoni ba ho sisinyeha ho tloha ho ± 25% ho isa ho ± 50%, e ba lumellang ho monya:
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--Moaho oa bolulo
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--Katoloso ea mocheso
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--Ho thothomela ha mechini
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--Mabotho a maholo a sephethephethe
Ho tenyetseha hona ho thibelaho petsoha ha manonyeletso, karohano ea substrateleho kenella ha metsi, e leng lisosa tse kholo tsa ho hloleha ha sebopeho pele ho nako.
Tšupiso e nang le tumello:
Tlhaloso e Tloaelehileng ea ASTM C920 bakeng sa Litiiso tsa Manonyeletso a Elastomeric (tse sebelisoang haholo bakeng sa liteko tsa PU)
3. Matla a Phahameng a Mechini bakeng sa Tikoloho tse Boima
Li-sealant tsa polyurethane li bontša:
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--Matla a ho tsikinyeha a phahameng
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--Khanyetso e matla ea meokho
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--Khanyetso e phahameng ea ho khohlela
Sena se etsa hore li be ntle bakeng sa:
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--Likaraje tsa ho paka makoloi
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--Mafatše a indasteri
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--Tlhahiso ea tšepe
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--Kopo ea 'mele ea koloi
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--Tlhahiso ea literene le lipalangoang
Ha e bapisoa le silicone, PU kee hanela ho hohlana ha 'mele haholo, e leng se etsang hore e lokele dibaka tse nang le kgatello ya mechine hamolemo.
4. Khanyetso e Phahameng ea Lik'hemik'hale e Sireletsa Botšepehi ba Sebopeho
Li-sealant tsa PU li boloka ts'ebetso ea nako e telele esita le ha li pepesehetse:
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--Lioli
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--Mafura
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--Lik'hemik'hale tsa indasteri
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--Lisebelisoa tsa ho hloekisa
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--Mongobo le mongobo
Sena se thibela ho senyeha ha lik'hemik'hale tsa konkreite kapa tsa tšepe.
Referense:
Litokomane tsa Tlhahlobo ea Botekgeniki ea Europe (ETA) mabapi le ts'ebetso ea PU libakeng tsa lik'hemik'hale.
5. Ho kwala Metsi, Moya le Mouoane ho Thibela Tshenyo ya Meaho ya Nako e Telele
Ho kenella ha mongobo ke e 'ngoe ea libaka tse atisang ho hloleha kahong. Li-sealant tsa PU li etsamokoallo o sa khaotseng, o tšoarellang oa mongobo, ho sireletsa meaho ho:
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--Khabone ea konkreite
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--Tšepe e senyehileng
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--Ho thehoa ha hlobo
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--Ho hatsetsa–ho qhibilihisa tshenyo
Bakeng sa marulelo, ho kopanya lebota la masira, le kaho ea sebaka se metsi, li-polyurethane sealant li fana ka monyetla o moholo oa ho tšoarella.
Sehlahisoa se amanang:
https://www.siwaysealants.com/polyurethane-waterproof-coating/
6. Ho Tšoarella ho Hoholo ho Feta Maemo a Mocheso a Feteletseng
Li-sealant tsa polyurethane li lula li tsitsitse ho tloha–40°C ho isa ho +90°C, e leng se etsang hore li lokele:
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--Matlo a polokelo a batang
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--Maqhama a kaho a kantle
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--Mechine ea indasteri
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--Ho tiisa likoloi
Ha ho bapisoa le li-sealant tsa acrylic kapa MS polymer, PU e na le boleng bo boholo.ho boloka ho tenyetseha ho hoholo mochesong o tlase, ho fokotsa ho petsoha le ho hloleha.
7. Khanyetso ea Boemo ba Leholimo ba Nako e Telele
Mefuta ea sejoale-joale ea PU—joalo ka e entsoeng ke Siway—e kenyelletsa:
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--Li-UV tse tsitsitseng
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--Li-additives tse thibelang ho ba mosehla
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--Theknoloji ea ho folisa mongobo
Lintlafatso tsena li thusa li-sealant tsa PU ho boloka ho tenyetseha le ho hokahana ka lilemo tse mashome tsa ho pepesehela tikoloho.
Referense:
ISO 11600: Litiiso tsa Kaho ea Meaho - Tlhophiso le Litlhoko
8. Ho Ntlafatsa Kabo ea Moroalo oa Sebopeho
Ha e sebelisoa e le sekhomaretsi, polyurethane e thatafalloa haholo ebile e na le matla a ho beolae aba matla ka ho lekana haholoanyane, ho fokotsa khatello ea maikutlo.
Likopo li kenyelletsa:
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--Kopanyo ea lebota ea lesira
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--Matlafatso a majoe le lithaele
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--Kopano ea lehong le metsoako
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--Ho kenya mechine ea indasteri
Sena se fokotsa kotsi ea ho arohana, ho petsoha, kapa ho falla.
Sheba lethathamo la sekhomaretsi sa Siway's PU:
9. Hobaneng ha Ditialant tsa PU di Sebetsa ho Feta Mefuta e Meng ya Ditialant
| Mofuta oa Sealanta | Mefokolo | Melemo ea PU |
| Acrylic | Ho tenyetseha ho fokolang, ho petsoha kapele, ho se tšoarelle nako e telele | PU e ntse e tenyetseha ka mashome a lilemo |
| Silicone | Ho ba le boemo ba leholimo bo botle haholo empa matla a mechini a tlase le ho penta habonolo | PU e leka-lekanya matla + ho tenyetseha 'me e ka pentoa |
| Sekontiri | Nako e tlase ea bophelo, khanyetso e mpe ea UV | PU e sebetsa maemong a feteletseng a kantle |
| MS Polymer | Tshebetso e phahameng empa litšenyehelo li phahame | PU e fana ka matla a tšoanang ka katleho e ntle ea litšenyehelo |
10. Hobaneng ha Siway Polyurethane Sealants e fana ka botsitso bo phahameng
Siway e entse li-sealant tsa polyurethane ka ho khetheha bakeng sa tikoloho e batlang e le thata ea indasteri le ea kaho. Ha li bapisoa le lihlahisoa tse qothisanang lehlokoa, li-sealant tsa Siway PU li fana ka:
✔ Bokhoni bo phahameng ba ho sisinyeha (ho fihlela ho ± 50%)
✔ Ho khomarela konkreite, tšepe le lejoe ho matla haholo
✔ Tshebetso e ntlafetseng ya ho thibela botsofali le ho thibela bosehla
✔ Ho hanyetsa lik'hemik'hale le ho khohlela ho phahameng
✔ Mekhoa e tsamaellanang le ISO, ASTM, le CE
✔ Litharollo tse etselitsoeng balekane ba indasteri
✔ Tlhahiso e iketsang bakeng sa boleng bo tsitsitseng
✔ Bokhoni bo boholo ba fektheri bo tšehetsang merero e meholo
Re sebeletsa liindasteri tse kenyeletsang kaho, likoloi, literene, lisebelisoa tsa elektroniki le ho thibela metsi.
Sheba mefuta e felletseng ea polyurethane ea Siway:
LBH
1. Na li-polyurethane sealant li loketse ho tšoarella nako e telele?
E. Li-sealant tsa PU li fana ka ho tenyetseha ho tšoarellang nako e telele, ho khomarela ho matla, ho hanyetsa maemo a leholimo a phahameng, le matla a mechini, e leng se etsang hore li be ntle bakeng sa merero ea kaho e tšoarellang.
2. Na disealant tsa polyurethane di ka mamella mocheso o feteletseng?
Bongata ba disealant tsa PU di sebetsa hantle pakeng tsa–40°C le +90°C, e leng se etsang hore li lokele libaka tse batang le libaka tse chesang haholo.
3. Li-polyurethane sealant li sebelisoa hokae haholo?
Maqhama a kaho, mahlakore a ka pele, fatše, marulelo, tokiso ea konkreite, litsamaiso tsa ho thibela metsi, kopano ea indasteri, lits'ebetso tsa likoloi le ho tlamahana ha tšepe.
4. Na disealant tsa polyurethane di betere ho feta silicone?
PU e betere bakeng samatla a mechini, ho khomarela konkreite, le ho penta habonolo, athe silicone e molemo bakeng saho thibela boemo ba leholimo ka mokhoa o hloekilengBakeng sa ho tšoarella ha kaho, PU hangata e fana ka boemo bo betere ba tshebetso ka kakaretso.
5. Sealant ea polyurethane e nka nako e kae?
Bophelo bo tloaelehileng ba tšebeletso keLilemo tse 10–20, ho latela maemo, boleng ba ho kenya, le ho pepesehela tikoloho.
Nako ea poso: Pulungoana-19-2025