I-3-ply foam liners zenziwe ngamacandelo amathathu: i-foam core ebhityileyo ifakwe phakathi kweeleya ezimbini zefilimu ye-LDPE.I-3-ply foam liner idla ngokusetyenziswa ngokutshintshanayo kunye ne-foam liner.Nangona kunjalo, yenza ngcono kune-liner ye-foam eqhelekileyo.Njengomgca we-foam, oku nako akwenzi isitywina esingangeni moya.
I-taste kunye ne-odor resistant, kwaye inezinga eliphantsi lokuhambisa ukufuma, oku kuthetha ukuba kuthintela ukufuma ekungeneni kwibhotile kunye nokuchaphazela imveliso.