Concrete shower pan preslope, can this product be used to increase one side of the preslope by 1/4 inch and fill in any inperfection (small holes).

QUIKRETE® Quick Setting Cement can be applied from ¼ inch down to a feather-edge of 1/16 of an inch. For deeper patches, do not apply more than ¼ inch thick per lift and allow it to cure completely before adding another lift. QUIKRETE® Quick Setting Cement is not intended to be used as a coating or over a large area (must be less than 2 square feet). Please note that the repair area must be sound, clean, unsealed/uncoated, and free of dust, dirt, loose debris, and any other potential bond breakers. When making repairs, getting a good color match can be difficult – we always recommend trialing the repair material in a small, inconspicuous area first and waiting 24 hours to ensure that the appearance, including color, is acceptable.