Hnav-tiv taus, tsis muaj kua nplaum residue, lub teeb rub lub zog, vim tias lub zog tev tawm yog lub teeb heev thiab kev sib txhuam quab yuam me me, yog li tsis muaj suab nrov, uas tuaj yeem tiv thaiv hluav taws xob zoo li qub.Nruab nrab viscosity, tsis tshua muaj suab nrov thaum lub sij hawm high-speed unwinding, tsis cuam tshuam rau ib puag ncig ntau lawm, uniform kua nplaum txheej, muaj zog tensile zog, thiab zoo aging kuj.