SimplePrep Gray Pre-Mixed Floor Patch, 1 gal. is a ready-to-use solution designed to repair holes and cracks in concrete and plywood floors before installing tile or other types of flooring. This gray, paste-like compound effectively smooths and fills minor dips and imions, ensuring a structurally sound, clean, and dry surface from contaminants. It can be applied over various substrates including concrete, cement backerboards, ceramic tile, exterior grade plywood, and vinyl flooring. I for interior use only, this floor patch is protected with MoldGard Technology to resist mold and mildew growth. It can be smoothed or featheredged for a seamless finish, and deeper fills greater than 1/4 inch may require multiple applications. After application, it is to wait 4 hours before tiling, with longer drying times needed for deeper repairs. Tools clean up easily with soapy water, making the process convenient and efficient. This product comes in a 1-gallon pail and a shelf life of 2 years. Model Number: FP1-2