Luflexen 18P FFX Linear low density polyethylene Basell Polyolefins (PE, PP) >> Polyethylene & derivatives SEALANT "Luflexen" is a Metallocen-based linear low density polyethylene (mLLDPE). Packaging Film Blending Sealants Metallocen-based linear low density polyethylene (mLLDPE). Used in sealants.