Colorfast Grout Colorant Kit- Oyster Gray #386 (Custom BP color) Renew or change the color of your tile or stone grout and seal at the same time! Gives tile a "New Look" with the strongest grout colorant on the market Effectively colors and seals the grout from stains/ moisture for easy cleaning Durable/ long lasting water-based epoxy formula from the industry leader Complete kit includes 8 oz. grout colorant/stain, brush and scrub pad