Question: Do I need to neutralize the acid stain after it has dried? Answer: Acid stain has been around for a long time and is the most traditional way to stain a concrete floor. It reacts chemically with the concrete and then forms a ‘chalk’ on the floor when it dries. This chalky residue needs to be removed from the floor with water. Our acid stain does not require neutralization, but if you want to, add a little baking soda to the water.     [youtube https://www.youtube.com/watch?v=AYHeOsnxGbw&w=560&h=315] Want more? Join our Facebook community!