PE foam is closed cell foam made from ... loose fill, and its most common use: cushioning products in packaging applications. Polyethylene is lightweight, shatter proof, flexible, cost-effective ... Inter-Pac for the most versatile, resilient, non-abrasive PE. Inter-Foam is a light-weight, closed-cell, ... as well as thermal protection and water-resistance. In addition, Inter-Foam is the most cost-effective ...