NXT® Level SP is a pourable, high performing self-leveling concrete topping, primarily used to finish interior concrete slabs. As a high-strength wear surface when polished. NXT Level SP provides a low maintenance, durable solution with an attractive, coarse salt and pepper look. It is applied over concrete and other sound substrates. With an unmatched ability to level uneven floor surfaces, NXT Level SP can be used in the most challenging situations.