Dual wall heat shrink tube inogadzirwa nemhando yepamusoro yepolymer (yekunze layer) ine inopisa melt adhesive (mukati mutsara) .The heat shrink tubing inodzivirira kubva kune unyoro uye nzvimbo dzinopisa, apo ichipa magetsi ekudzivirira uye kuchengetedzwa kwemichina. Panguva yekumisikidza, iyo indasitiri yekunamira yekunamira mukupisa inonyungudika tubing inonyungudika uye inopararira munzvimbo ine mitsara ichigadzira inodzivirira, inodzivirira mvura. Kana ichitonhorera pasi, mukati memukati inoumba adhesion layer pakati petubhing nechikamu kana waya. Inopa chisimbiso chemvura-chakasimba uye chengetedzo yezvibatanidza kana waya.Kuenderera mberi tembiricha yekushanda yakakodzera Minus 55°C kusvika 125°C. Kune zvakare giredhi-yemhando yemauto ine tembiricha yepamusoro yekushanda ye135 ° C. Zvose 3:1 uye 4:1 shrink ratio zvakanaka.