PROFLEX® Sanded and Unsanded grouts are a composition of polymer modified cement and high quality pigments producing color uniformity and durability for use in freeze thaw conditions. Sanded grouts can be used to fill joint widths greater than 1/8" up to 1/2". Unsanded grout is for use with grout joints of 1/8' or less. Matching sanded and unsanded caulk colors available.