Lisebelisoa tsa Lefatše lia fokola 'me ho bohlokoa hore re nke feela seo re se hlokang le ho etsa karolo ea rona ho sireletsa se setseng bakeng sa meloko e tlang.Polyurethanes e bapala karolo ea bohlokoa ho baballeng mehloli ea tlhaho ea polanete ea rona.Liaparo tse tšoarellang tsa polyurethane li tiisa hore bophelo ba lihlahisoa tse ngata bo atolosoa ho feta se neng se ka finyelloa ntle le ho roala.Polyurethanes e thusa ho boloka matla ka mokhoa o tsitsitseng.Li thusa litsebi tsa meralo ea meralo ho sireletsa meaho hamolemo e leng ho fokotsang tšebeliso ea khase, oli le motlakase, tse neng li tla hlokahala ho e futhumatsa le ho e pholisa.Ka lebaka la lihlahisoa tsa likoloi tsa polyurethanes, bahlahisi ba likoloi ba ka rala likoloi tsa bona ka mokhoa o khahlehang le ho etsa liforeimi tse bobebe tse bolokang tšebeliso ea mafura le mesi.Ho feta moo, mafome a polyurethane a sebelisetsoang ho kenya lihatsetsi a bolela hore lijo li bolokoa nako e telele le ho li boloka hore li se ke tsa senyeha.

Hammoho le ho boloka matla le ho sireletsa lisebelisoa tsa bohlokoa, hona joale ho na le ho tsepamisa maikutlo ho eketsehileng ho netefatsa hore lihlahisoa tsa polyurethane ha li lahloe feela kapa li lahloa ha li fihla qetellong ea bophelo ba tsona ba tlhaho.

Hobane li-polyurethanes li joaloli-polymers tse thehiloeng ho petrochemical, ke habohlokoa hore re li sebelise hape ha ho khoneha, e le hore thepa ea bohlokoa e tala e se ke ea senyeha.Ho na le likhetho tse fapaneng tsa ho sebelisa hape, ho kenyeletsoa mochini le ho sebelisa lik'hemik'hale.

Ho itšetlehile ka mofuta oa polyurethane, mekhoa e fapaneng ea ho tsosolosa e ka sebelisoa, joalo ka ho sila le ho sebelisa hape kapa ho kopanya likaroloana.Ka mohlala, foam ea polyurethane e lula e fetoloa ka tlas'a k'hapete.

Haeba e sa sebelisoe hape, khetho e ratoang ke ho khutlisa matla.Tonne bakeng sa tonne, polyurethane e na le matla a lekanang le a mashala, e leng se etsang hore e be lijo tse sebetsang hantle haholo bakeng sa licheso tsa masepala tse sebelisang matla a hlahisoang ho futhumatsa meaho ea sechaba.

Khetho e sa lakatsehang haholo ke ho lahlela mobu, e lokelang ho qojoa hohle moo ho khonehang.Ka lehlohonolo, khetho ena e ntse e fokotseha ha mebuso lefats'eng ka bophara e ntse e hlokomela bohlokoa ba litšila bakeng sa ho tsosolosa le ho tsosolosa matla, le ha linaha li ntse li qeta matla a tsona a ho lahlela lithōle.

Indasteri ea polyurethane le eona e ntse e tsoela pele ho ntlafatsa ho hlahisa thepa e tsitsitseng haholoanyane.