Step 2 Dip your scrub brush into your bucket. This method can be used to remove ordinary writing ink stains and bright-colored ink stains from cement. Include your email address to get a message when this question is answered. Your best bet is to diligently spray down and seal outdoor concrete regularly, because it is so porous. You may need to repeat this a few times to achieve victory. (Consider wearing a mask to avoid inhaling any kitty litter dust.). Use a scrub brush or toothbrush to get the crayon out. The dissolved ink stain will be lifted up with the liquid and will be re-absorbed by the poultice or cotton batting. Don’t let it dry too quickly–apply more if necessary. It forms the base for a number of jobs taken on within the construction industry and is also most exposed to staining and damage. Pressure washers can quickly remove dirt, debris and some concrete stains, but it is also easy to misuse them and damage your driveway, walkway or patio. Scrub again and rinse. For additional options, read this guide on removing moss from paving stones. For larger areas, homeowners report success eliminating algae by attaching a liquid fertilizer delivery device to the end of a garden hose and filling it with pool chlorine. The area it has run onto happens to be white, so the dye shows a lot. If you can, blot it up versus rinsing, as it will kill plants. Scrub again and rinse. Did you know that you can identify pet urine on concrete with a black light? Next, try a 1:2 ratio of oxygenated bleach and water. Wash with a solution of washing soda or detergent (not soap) and water. Concrete Stain Removal: How to Remove 15 Common Outdoor Stains. Of course, just buying washing soda is easier, but it does require a trip to the store. The sun can dry stepped-on berries into an unsightly stain. Try using an oil-based lubricant or cleaner like Goo Gone or WD-40. Use a cloth or soft-bristled brush to gently scrub the stain. If whiting is not available, you can use kitchen flour. Concrete stain can actually highlight and intensify the variations found in the concrete a natural as … Remove Debris: Use a shop vacuum or a broom to remove all dirt and debris from concrete surface. But if the damage is done, the best way to remove the dye from big and little hands is baking soda and a bit of white vinegar. Let it sit until the black or green stains turn white, but don’t let it dry. Scrub the wine stain with the mixture and let it sit for 20-30 minutes. Mix flour and hydrogen peroxide to form a thick paste similar in consistency to peanut butter. Use the scrub brush to briskly scrub the concrete to lift the stain. Step 3 Proudly serving San Diego and Orange County, California. This article has been viewed 47,539 times. All tip submissions are carefully reviewed before being published. There should be sufficient ventilation wherever you are working. Here are some methods that can be used to remove the stain from the concrete. In removing graffiti on your concrete countertop, several proprietary chemical strippers can be used. Think about wearing protective clothing, eye wear and gloves, depending on which method you choose. Use a nylon brush to scrub it away. It this doesn’t work, repeat using OxiClean instead of dish soap. Any advice would be very helpful. Different kinds of ink will require different kinds of treatments. Pour 1 quart of chlorine bleach into 3 quarts of water. All I can find on the internet is how to remove dye from fabrics, not walls and building materials. Whiting can be bought in some paint stores.