Okulonda wakati w’omusipi gwa PET (omusipi gwa polyester) n’omusipi gw’ekyuma kye kimu ku bisinga okusalawo mu kupakinga mu makolero. PET strap ekuwa okukekkereza ku nsimbi okutuuka ku bitundu 50% buli ffuuti, emalawo obulabe bw’obuvune okuva ku mbiriizi ezisongovu ne snap-back, era ekuwa okukuuma okusika omuguwa okw’ekika ekya waggulu ng’emigugu gitereera nga giyita. Okusiba ebyuma kuwa obugumu obusinga ku migugu egy’amaanyi naye nga kutwala ssente ezikwekebwa omuli abakozi abangi, obulabe bw’obucaafu bw’obusagwa, n’okwambala ebyuma. Okusinziira ku biwandiiko by’amakolero, omusipi gwa PET guwa emirundi ena ebifaananyi eby’ennyiriri (linear footage) buli ttani bw’ogeraageranya n’ekyuma, ekikyusa mu musingi ensengekera y’omuwendo.
Omutindo gw’okulondoola omutindo gwa PET strap (polyester strap) gukakasa omulimu ogutakyukakyuka n’obukuumi bw’omugugu. Okusinziira ku ASTM D3950 specifications, okugezesa omutindo kulina okukakasa tensile strength, elongation, dimensional accuracy, ne heat seal strength . Ekitabo kino kinnyonnyola emitendera emikulu egy’okulondoola omutindo, enkola z’okugezesa, n’ebyo abaguzi bye balina okutunuulira nga bakakasa omutindo gw’omusipi gwa PET.
PET strap (polyester strap) efuuse ekintu ekisinga okwettanirwa okusiba mu makolero amazito, okudda mu kifo ky’ekyuma mu kyuma coil bundling, brick palleting, cotton bale packaging, n’okunyweza embaawo. Ng’erina amaanyi g’okusika okutuuka ku 600 N/mm2, okunyweza okusika okulungi, n’okukola obulungi nga tekuliimu nfuufu, omusipi gwa PET guwa amaanyi agalinga ag’ekyuma awatali buzibu bwa kyuma. Okusinziira ku kwekenneenya amakolero, omusipi gwa PET gusobola okudda mu kifo ky’ekyuma mu mirimu egisinga egy’amaanyi, okukendeeza ku nsaasaanya yonna ebitundu 30–50% ate nga gulongoosa obukuumi bw’abakozi n’okumalawo obucaafu bw’obusagwa .
PET strap (polyester strap) esaanira nnyo okutereka ebweru. Okusinziira ku Signode, PET egumira UV, obunnyogovu, n’okukyukakyuka okunene mu bbugumu, ekigifuula ennungi nnyo ku migugu egiterekeddwa ebweru oba mu mbeera enzibu .