Litheipi tse pepenenengli sebelisoa haholo liphahameng tsa rona tsa letsatsi le letsatsi, joalo ka ho tiisa le ho lokisa thepa e fapaneng, ho tiisa, le ho tlamahanngoa ha litheipi tsa foam tse nang le viscosity e phahameng.Ka kakaretso, thebopp theipi e bonaletsang, ke lifeme tsa tlhahiso tse hlokang mosebetsi o boima tse sebelisoang haholo.

Ntlha ea pele, ke habohlokoa hore viscosity e be e ntle.Nakong ena ea viscosity, hoa lokela ho hlokomeloa hore u ke ke ua utloa feela viscosity eateipi e bonaletsangka letsoho, hobane viscosity ea pele ea tepi ea scotch e nang le litšila e phahame haholo ha ho se na volatilization.Ka hona, ha u khetholla viscosity ea tepi ea scotch, khomarela ntho eo ka tepi, ebe u e hula ka potlako ho bona matla a ho tšoara, ebe u e ama ka matsoho ka makhetlo a 'maloa ho fihlela viscosity e theoha haholo.

Taba ea bobeli, hlahloba hore na bokaholimo ba tepi bo boreleli ebile ha bo sosobane.Ka kakaretso, li-bubble tsa moea li ka bonoa hoteipi e bonaletsange sa tsoa hlahisoa, 'me li-bubble tsa moea li tla fela ka mor'a hore li behoe ka beke.

Hape, sheba ho tiea ha theipi ea scotch, bokhoni ba thepa ea ho monya matla nakong ea deformation ea polasetiki le fracture.Ho betere ho thata, ho fokotsa monyetla oa ho robeha ha brittle, le ho tiea ha theipi ho ka sireletsa lihlahisoa tsa ho paka hantle.