TRU Self-Leveling is a rapid-setting hydraulic cement-based self-leveling topping, resurfacer, and underlayment. This high-performance floor topping cures to a light off-white color and rapidly levels. Ideal for stained or colored floors and decorative embedded aggregate flooring, the product can be polished or ground for any application, maintains workability for up to 30 minutes, and can support foot traffic within two to three hours. CTS Cement Mfg Corp/Rapid Set Products. 800-929-3030.