Hello! I would suggest buying a large roll of ethafoam (chemically inert); it can easily be cut to size and provides protection from abrasion, etc. We have gotten ours quite inexpensively in the past from Gladon, Inc. in Milwaukee (800-448-6070). At the time, a 300' x 48' roll cost about $148. Good luck! Colleen E. Curry Collections Manager Lehigh County Historical Society Allentown, PA [log in to unmask]