To remove water, mold, or mildew stains from concrete patios and driveways, use a hose or pressure washer. If stains persist, mix a solution of one-quarter bleach to one gallon of hot water and scrub the area with a brush, watering down nearby foliage first to prevent damage from runoff.
Simply fill a spray bottle with equal parts water and vinegar (or water and baking soda), and add a little bit of liquid dish detergent. Spray the mixture on your concrete surface and let it sit for about 30 minutes. Then scrub and rinse your concrete.
Never use a wire brush as it can leave rust stains and scratch the concrete surface. If you neglected cleaning your concrete patio for some time, use a detergent such as Dawn or Ajax dishwashing liquid mixed with water to help brighten the surface.
A bleach solution is generally regarded as the best way to clean a concrete patio. It is effective for both poured and paved concrete patios. It freshens the look and disinfects the area as well.
While bleach will not harm the concrete, it might erode a sealant or paint applied over the concrete. For example, when used to clean concrete tile grout, the bleach can corrode the sealant. Before applying to concrete, consider the effects bleach might have to whatever sealant might be on the concrete surface.
White vinegar and a little scrubbing with a brush is a very effective, eco-friendly way to remove rust stains from concrete—even those that are decades old. Pour the white vinegar directly onto the stain, allow the liquid to penetrate the area for 20 minutes, and scrub with a stiff-bristled brush.
Rinse bleach from surfaces as directed
Bleach and water solutions for cleaning and disinfecting should be rinsed off any surface with clean water before air drying. Make sure you rinse surfaces as directed, as proper rinsing prevents bleach residue.
Is it possible for baking soda to harm concrete? To remove oil off driveways, baking Soda is commonly used. It's highly alkaline, so it won't destroy your concrete, but it could irritate your skin and even cause burns.
The quick answer is yes, power washing can degrade a concrete surface. You can notice visible damage from water pressure at the level at which even light-duty power washers can operate. Therefore, if you aren't careful, you can cause irreversible damage to your driveway or patio.
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. Spray the concrete stains with the soap solution, let it sit for 10 minutes, and then scrub with a stiff nylon brush.
Although it's possible to scatter the OxiClean powder on the wet concrete and then scrub with a stiff broom, you'll probably get a more uniform result by mixing the powder with water first. Use four scoops of powder per gallon of water.
Etching – Vinegar's ability to dissolve CaCO3 will dull your marble, travertine, concrete and terrazzo surfaces. It may “clean” the surface but it is also dissolving pits into the finish and effectively dulling it.
You can use Simple Green Oxy Solve Concrete and Driveway Cleaner to clean a concrete patio with or without a pressure washer. It removes oil, grease, grime and most stains and discolorations. Its biodegradable formula is safe for lawns and pets.
There actually is no difference! the bleach you use in your laundry is essentially the same has the bleach you use in cleaning the rest of the house. The only difference there might be is that sometimes you are using oxygen bleach, instead of chlorine bleach. Chlorine bleach is much stronger.
When used properly (it should always be diluted with water before use), chlorine bleach is safe for disinfecting surfaces. It kills harmful germs and bacteria and sanitizes clothes in the laundry.
If instructions are not available, leave the diluted bleach solution on the surface for at least 1 minute before removing or wiping. This is known as the “contact time” for disinfection. The surface should remain visibly wet during the contact time. Wash hands after cleaning or disinfecting.
No, you do not. Full-strength vinegar is fully capable of taking care of stains on concrete. You can even add a salt or baking soda to your vinegar to help it cling to upright surfaces and take your cleaning vertical. Perhaps the best part is that vinegar is nontoxic.
Try to remove the cement stains or mortar residue with one part vinegar and one part warm water. Then you brush this solution onto the surface. Leave to absorb and then rinse with clean water. Depending on the type of surface, you can remove cement stains and mortar stains with sandpaper or a scraper.
What is this? Mix bleach with water and then add dishwashing detergent to the mix and put it into a spray bottle. Spray the solution onto the cement patio, let it sit for a few minutes, then scrub the mix into the concrete with a stiff brush.
Types of Concrete Surfaces
Basement walls that have accumulated mildew or mold can be easily cleaned using a bleach spray solution. Water fountains run the risk of growing dirt, grime, mold, and mildew and can be cleaned with bleach.