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.
Getting stains out of concrete.
Spray them with oven cleaner.
Porous concrete absorbs stains easily.
Mix the ingredients and apply to the surface of the floor where the rust stain appears.
Cover the area with plastic wrap tack down the edges with masking tape and let the absorbent settle in for a full 24 hours.
If the surface was just stained act quickly.
Let it settle for 5 10 minutes then scrub with a stiff.
Wet the scrub brush with warm water and apply a few squirts of the soap to the bristles.
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.
To make an easy cement floor cleaner apply a thick coating of the baking soda to the stained area of the concrete floor and let sit for approximately 30 minutes.
Get those unsightly grease oil and transmission fluid stains off your concrete driveway or garage floor.
As the paste dries it will lift the berry stain from the concrete.
To remove pour one eighth of a cup of liquid dishwashing detergent into a spray bottle then top off the bottle with warm water and shake well.
Securely tape plastic wrap over the paste and let sit for 24 48 hours.
Leave the litter alone for at least an hour before sweeping or vacuuming it away.
You also may use sawdust if you happen to have an ample supply around.
To remove stubborn rust stains from your concrete garage floor you can create a paste out of laundry detergent and baking soda.
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.
Don t rub the surface it will drive the stain further into the concrete.
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.
Cover the stain with kitty litter or baby powder both which work as absorbents to draw the stain out of concrete.
Mixing ammonia with bleach creates a lethal gas similar to mustard gas.
Mix flour and hydrogen peroxide to form a thick paste similar in consistency to peanut butter.
Cover the stain with the paste in a layer that s about 1 4 inch thick.
Leave the baking soda paste on the stain for about an hour keeping it wet so that it doesn t harden.
Spray the concrete stains with the soap solution.