Driveways can be a source of pride for many homeowners when it comes to the external appearance of their property and home. However, if one of your vehicles has a leak, this can lead to ugly, stubborn stains on the concrete or asphalt. Common spills and leaks include antifreeze, grease, oil and battery acid. Battery acid can be tricky to remove for several reasons. The chemicals in the acid often react to materials in the concrete or asphalt, which results in more of a chemical reaction than an actual stain. People also tend to wait too long to treat the spill which makes its removal more labor intensive and quite difficult. Battery acid stains are dark brown and orange in color, which makes them easy to mistake for rust stains.
Sprinkle the stain liberally with clumping cat litter to ensure the acid spill is completely absorbed. Let sit for 10 minutes.
Put on your gloves and safety glasses. Shovel the kitty litter into a trash bag.
Sweep the stained area to remove any leftover kitty litter. Use a dust pan to put it in the trash bag. Dispose of the trash bag.
Fill the bucket with warm water. Add 1/4 cup dish detergent. Mix well.
Pour the dish detergent solution on the stain. Let it dry completely. This may take an hour or more, depending on the weather.
Pour bleach directly on the stain and leave it for 10 minutes. Scrub the stain vigorously with your brush. Rinse.
Repeat Step 6 until the stain is gone.