Cov ntawv cov ntawv rau blister ntim yog hu ua nyuaj zaj duab xis lossis zaj duab xis, feem ntau siv yog: tsiaj (polyethylene terephthalate) nyuaj zaj duab xis, PVC (polyvinyl chloride) nyuaj zaj duab xis, PS (polystyrene) zaj duab xis nyuaj. PS hard disk muaj qhov tsis ntom, tsis muaj kev tawv thiab yooj yim hlawv. Thaum nws hlawv, styrene gas (teeb meem roj) yuav raug tsim tawm, yog li nws feem ntau siv los tsim ntau yam pallet yas kev lag luam.
PVC hard disk puas muaj kev sib xyaw tawv thiab tsis yooj yim hlawv. Thaum nws hlawv, nws yuav tsim cov tshuaj chlorine, uas yuav muaj feem cuam tshuam rau ib puag ncig. PVC yog qhov yooj yim kom sov ua tiav. Nws tuaj yeem muab ntim los ntawm kev sib khi lub tshuab thiab lub tshuab ua haujlwm siab. Nws yog cov khoom siv tseem ceeb rau ua tiav ntawm cov pob tshab Blister cov khoom.
Tsiaj hard disk tau zoo toughness, siab pob tshab, yooj yim hlawv, thiab tsis tsim kom muaj kev phom sij thaum hlawv. Nws zwm rau cov khoom siv tiv thaiv ib puag ncig, tab sis nws cov nqi nce siab, yog li nws tsim nyog rau ua cov qib siab Blister khoom. Feem ntau, tsiaj daim tawv hard disk yog qhov yuav tsum muaj rau lub plooj plooj hauv cov tebchaws European thiab Asmeskas, tab sis nws tsis yooj yim los ua kom sov, uas coj teeb meem nyuaj rau kev ntim khoom. Txhawm rau daws qhov teeb meem no, tib neeg tsim ib txheej txheej PVC zaj duab xis saum nplaim tsiaj, npe hu ua PETG hard disk, Tab sis tus nqi yuav siab dua