Polyethylene Foam, also known as PE, is a strong resilient closed cell foam. Used for shock absorbing, vibration dampening, loose fill, and its most common use: cushioning products in packaging applications. Polyethylene is lightweight, shatter proof, flexible, cost-effective, and impervious to mildew, mold, rot and bacteria. We stock 2' x 4 sheets of white, black and anti-static pink at a 1.7lb density in varying thicknesses. Other colors available are blue and green. Our polyethylene foams are available in larger sheet stock, multiple thicknesses and densities ranging from 1.2lb to 9.0lb.