Non-Crosslink Polyethylene Foam is a closed cell foam available in black, gray, or white. It can be used in all standard concrete and masonry construction applications. It is widely used in residential, commercial, and industrial construction. Features: Extruded from high-quality polyethylene foam Peel-Off Strip: Standard on each roll, but can be special ordered without Very Flexible: Will not break or crack when used around curves or columns Lightweight: Approximately 10 times lighter than traditional expansion joint products Accepted: Commonly used by both commercial and residential contractors Durable: With near zero water absorption, it will not rot out of the joint over an extended period of time. Economical: Easily cut and handled on any jobsite 50' Roll