Mix the ingredients and apply to the surface of the floor where the rust stain appears.
Getting stains out of concrete.
To remove stubborn rust stains from your concrete garage floor you can create a paste out of laundry detergent and baking soda.
To start getting oil up out of your concrete with cat litter simply pour some of it over the stain and work it into the area by stepping on it or mashing it down another way.
You also may use sawdust if you happen to have an ample supply around.
Cover the stain with kitty litter or baby powder both which work as absorbents to draw the stain out of concrete.
Leave the litter alone for at least an hour before sweeping or vacuuming it away.
As the paste dries it will lift the berry stain from the concrete.
Make sure the detergent you use is ammonia free.
Cover the area with plastic wrap tack down the edges with masking tape and let the absorbent settle in for a full 24 hours.
Scrub the gray stain with a solution of 1 cup liquid chlorine bleach 1 cup powdered laundry detergent and 1 gallon of very hot water.
Securely tape plastic wrap over the paste and let sit for 24 48 hours.
Cover the stain with the paste in a layer that s about 1 4 inch thick.
Make sure the surface is clean apply the rust remover or acid following the instructions and safety precautions on the bottle let it sit for five to 10 minutes then scrub and rinse.
For particularly stubborn stains rinse the acid away with a pressure washer.
Spray the concrete stains with the soap solution.
Wet the scrub brush with warm water and apply a few squirts of the soap to the bristles.
Spray them with oven cleaner.
Let it settle for 5 10 minutes then scrub with a stiff.
Mix flour and hydrogen peroxide to form a thick paste similar in consistency to peanut butter.
Porous concrete absorbs stains easily.
If some oil still remains you can repeat the process as many times as needed.
Use the soapy brush to scrub the baking soda into the stain until the stain is gone.
Mixing ammonia with bleach creates a lethal gas similar to mustard gas.
Soak up as much as possible with paper towels.
Use a brush that s appropriate for your concrete to avoid damaging it.
Leave the baking soda paste on the stain for about an hour keeping it wet so that it doesn t harden.
If the surface was just stained act quickly.
Don t rub the surface it will drive the stain further into the concrete.