24-023 is a two component co-blown, polyurethane foam designed and used for constructing pipeline trench breakers, pipe pads and or pillows. This system was specifically formulated for great lift thicknesses without scorching or splitting during field applications. This system will process at 2.0 to 2.2 lbs per ft3 depending on thickness. It has been tested per ASTM test methods at 27 psi compression strength and a closed cell content >95%. 24-023 is an excellent choice for filling large open pits, voids, trenches and areas that require a lightweight back fill substitute to soil, sand or stone.