Bopp Film Scrap It shall consist of sorted clear or natural Polypropylene (PP) scrap, compacted into secure bundles with a minimum weight density of 10 lb./cubic foot. The films are available in a thickness range 8-75 microns. These films are available in Plain, Heat-Sealable, Metallizable, Matte, Pearlized, Cavitated, Overwrap, White Opaque, Speciality Grades among several others