AquaFinish 32 oz Bathtub and Tile Refinishing Kit This kit will transform your worn out, stained bathtub or dated ceramic tile to an easy to clean glossy white. Simply clean and prepare your tub, ventilate the area and apply two coats with an hour in between. Your tub will be ready for use in 24 hours. Replacing a tub costs at least $2500. Order a double kit and transform your tile walls as well. Hiring a bathtub refinisher is atleast $400 for a reputable one. Rolling on your finish is more easier and better than spraying. End result is much thicker finish and no runs or overspray.