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Concrete Stain Cleaning

Scrub the concrete with a grease solvent like benzene. Have a fire extinguisher helpful. This stuff sparks easily.
Make a thick paste of 1 part salt citrate, 6 parts water, 6 parts glycerine, and some whiting or fuller’s earth. Spread it on the stain and permit it to stand, including new paste when it dries.
When none of these techniques has worked, applied your goggles and gloves and get out the muriatic acid. This is the approach of last resort for cleansing any kind of stain on concrete or brick.

- Rust discolorations.

Wet the location.
Sprinkle on powdered Oxalic acid (Typically described as wood bleach, it is offered at hardware and paint stores.).
Spray on a light water mist.
Permit to sit.
Scrub.
Rinse.
Repeat until the stain is gone.

- Eliminating Tire Marks.

Spray on vehicle brake cleaner until the marks disappear.
The most typical discolorations are triggered by oil or radiator fluid dripping from vehicles. The ideas apply to antifreeze and grease spots as well as oil spots:.
Scrub the concrete with a grease solvent like benzene. Make a thick paste of 1 part salt citrate, 6 parts water, 6 parts glycerine, and some whiting or fuller’s earth. Spread it on the stain and enable it to stand, adding new paste when it dries.

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