Beaded Polyethylene Beaded Polyethylene or Molded PE is easily fabricated, versatile and cost effective in many packaging applications. Can be cut with or with out tooling. Excellent in many Class A  packaging situations. Densities range from 1.3# PCF-2.8# PCF. Polypropylene can also be molded for a custom packaging application.   Beaded Polypropylene Polypropylene is a very rugged foam with no Class A applications. Used for packaging very heavy items. Densities range from 1.0# PCF-4.8# PCF. Polypropylene can also be molded for a custom packaging application.