How to Remove Battery Acid Stain from a Leather Sofa

Just like acid can eat through fabric, it can cause permanent damage to a leather surface. You cannot undo the damage caused by battery acid on your leather, but you can prevent the damage from spreading by neutralizing the acid as quickly as possible.

• Baking soda
• Water
• Sponge
• Soft dry cloth

1. Make a paste of baking soda and water.
2. Use the sponge to wipe the paste onto the area of the leather affected by the acid spill. You may see some bubbling or fizzing. This is normal, it is just the reaction between the acid and the baking soda. It will result in a neutral substance that will not cause harm to the leather or to you.
3. Rinse the sponge well in clean water, or use a fresh sponge.
4. Wipe away the baking soda and neutralized acid with the clean sponge.
5. Dry the area with a soft cloth.
6. Although the acid will be neutralized, and will not cause further damage, this process will not remove the stain left behind. This will have to be professionally replaced or repaired.
7. Since the leather itself has been damaged  or “eaten” by the acid, there is no topical stain to remove. If there is no way to replace the section, you may have to replace a larger area.

• Battery acid will burn your skin, so avoid touching the affected area until it has been neutralized.
• When dealing with an alkaline battery spill, neutralize it by wiping with a cloth dipped in vinegar.
• If the spill is a large one, you have sensitive skin, or you will have to touch the battery acid, wear rubber gloves for protection.