Laticrete NXT Level Plus (55lbs) is a fiber reinforced self-leveling underlayment. It is also versatile and provides a smooth, flat surface for the installation of tile, stone, and other floor coverings. Specifically designed for areas that require greater thickness, NXT Level Plus is perfect for leveling substrates with larger imperfections or height variations. Its fast-setting formula ensures quick application and minimal downtime, while its exceptional durability and crack-resistance make it ideal for both residential and commercial projects. This 55lb bag is easy to mix, apply, and delivers superior results that ensure your floor remains stable and long-lasting. It has a standard grey color much like concrete.