Polywash is only available for order in the Scraffito line. Two colors are used in the Polywash technique; the accent underglaze color which recedes into the carved line and the overglaze color, which covers the entire surface of the tile. The accent color options are: Golden, Brown, Thyme, Mushroom, Silver, Indigo, Charcoal and India Ink. Any of the existing Watercolor Glazes can be used for the overglaze color. Using lighter Watercolors for the overglaze shows the contrasting underglaze details more clearly. The palettes below show how some of our most popular watercolors react with the different accent colors. Watercolor glazes are not recommended for use on floors and kitchen counters.