Mtundu B FIBC wapangidwa kuchokera ku virgin polypropylene yowonjezerapo anti-static magetsi master batch zinthu zomwe zimakhala ndi magetsi ochepa omwe amaletsa kupezeka kwa kutulutsa kwamphamvu kwambiri, komanso koopsa kotulutsa burashi (PBD).
Mtundu B FIBCs ndi ofanana ndi Matumba A matumba ochulukirapo chifukwa amapangidwa kuchokera ku polypropylene yosalala kapena zina zomwe sizoyendetsa. Momwemonso ndi matumba amtundu wa A A, matumba ambiri a Type B alibe njira iliyonse yothetsera magetsi.
Ubwino wokhawo wa mtundu wa A ndikuti matumba ambiri amtundu wa B amapangidwa kuchokera kuzinthu zomwe zimakhala ndi mphamvu zochepa kuti zisawonongeke pakatuluka kwamphamvu kwambiri, komanso koopsa kotulutsa burashi (PBD).
Ngakhale mtundu wa B FIBC umatha kuletsa PBD, samawerengedwa kuti ndi antistatic FIBC chifukwa samachotsa milandu yama electrostatic motero kutulutsa kwamaburashi koyenera kumatha kuchitika, komwe kumatha kuyatsa nthunzi zosungunuka.
Mtundu B FIBCs amagwiritsidwa ntchito makamaka kunyamula ufa wouma pomwe sipangakhale zosungunulira kapena mpweya woyaka kuzungulira matumba.
Lembani B FIBCs sayenera kugwiritsidwa ntchito pomwe pali mpweya woyaka wokhala ndi mphamvu zochepa zoyatsira ≤3mJ.
Kutuluka kumatha kutuluka pamwamba pa FIBC Type B ngati itapaka kapena yodzazidwa ndi zinthu zowongolera (monga madzi, mafuta kapena mafuta). Chenjezo liyenera kuthandizidwa kupewa kuipitsidwa koteroko komanso kupewa zinthu zoyipa monga zida kapena tinthu tating'onoting'ono tomwe tingaikidwe pa FIBC.