Follow these steps to remove food coloring and hair dye stains from stone surfaces such as Bluestone, Brick, Concrete, Flagstone, Granite, Limestone, Masonry Tile, Sandstone, Slate and Terrazzo:
- Wipe up the excess dye.
- Wash with a solution of washing soda or detergent (not soap) and water.
- Use a cloth or soft-bristled brush to help scrub.
- Rinse thoroughly with clear water and allow to dry.