Ultratech Ultra-Containment 8308 stake wall XR-5 berm helps capture leaks, drips, and spills to prevent environmental contamination. Flexible polyurethane stakes allow the sidewalls to spring into place automatically and can handle being bent in either direction; drums and trucks can roll over the walls without breaking their upright structure. Easily folds for transport. The Ultratech 8308 stake wall spill containment berm features durable puncture resistant XR-5 polyester fabric for reliable service and excellent chemical compatibility with substances like kerosene, raw linseed oil, and 50% nitric acid. The fabric can also withstand temperatures as low as -30 deg F before cracking for added environmental protection. This Ultra-Containment stake wall berm offers vertical sidewall supports located every 1 ft. Each support features a built-in "living hinge" at its base so that the sidewalls can collapse in either direction. No set-up required, simply unfold and the sidewalls automatically spring into a vertical position. Meets EPA SPCC (Spill Prevention, Control, and Countermeasure) and 40 CFR 264.175.