Vinegar is an all-natural solution for cleaning concrete. It kills mildew and mold, removes grime, and helps treat set-in stains. Before cleaning concrete with vinegar, it's essential to dilute it so you don't affect your sealer.
Will Vinegar Damage Concrete? Cleaning concrete with vinegar will not damage it! However, saturating concrete for an extended period will damage the cement that binds concrete together. Over time, vinegar erodes the concrete itself, so be careful.
White vinegar will not damage your concrete. However, leaving this solution for an extended period will damage the cement that binds the concrete together. Hence, you should be careful when using vinegar on your concrete, especially if you will use this solution on polished concrete.
It should be noted that vinegar cannot kill every type of mold, according to a study from 2015. It is highly effective at getting rid of Penicillium chrysogenum, which is most commonly found in damp areas, but not Aspergillus fumigatus, which is typically found in plant matter and soil.
Vinegar Solution
Spraying a vinegar solution (1 cup of vinegar per gallon of water) onto the surface, saturating it fully, should kill most strains of mold.
In the construction, architecture and engineering fields, mold is a hot topic because it definitely grows in and on concrete. Mold growth on concrete occurs in any geographical area of the world and has the potential to lead to health problems and structural damage.
Our top pick is the RMR-86 Instant Mold and Mildew Stain Remover for its versatility and effectiveness on nearly every surface. For those looking for an eco-friendly mold remover with natural ingredients, we recommend CLR Mold and Mildew Clear.
Add full-strength white distilled vinegar to a spray bottle and spray it on the mold. Let it sit for at least an hour before wiping away mold. If you need follow-up scrubbing, combine one teaspoon baking soda with two cups of water. Pour it into a spray bottle, shake and spray it onto the mold.
If you don't already have some at home, white vinegar can be inexpensively purchased at most grocery stores. Vinegar can be used to kill mold on both nonporous surfaces and porous surfaces. Compared to bleach, it can more easily penetrate porous materials like wood to kill mold growing underneath the surface.
Vinegar and Baking Soda
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.
Despite the signal word danger on most such labels, gardeners may instead just see vinegar and be careless. Sobering details: In concentrations over 11%, acetic acid can burn skin and cause eye damage, and concentrations of 20% and above are corrosive to tin, aluminum, iron, and concrete and can even cause blindness.
We found several “recipes” for cleaning solutions that can be used on unsealed cement garage floors. Here are three of the most common: Recipe #1 – Mix 2 tsp. dish soap, 1 cup white vinegar and 1 gallon warm water in a bucket.
Penetrating sealers are a great choice if you want an all-in-one concrete sealer. This does the job of concrete sealers and coating by closing up the pores of the concrete. This way, your project can be protected from weather, stains, and mold at the same time.
Dish soap and water: Dish soap is a degreaser, and it works well to clean oily and grimy concrete. Create a cleaning solution of warm water and few drops of dish soap and apply it to the surface. Let it sit for a while, then mop the patio and rinse it with fresh water. Repeat the process as many times as needed.
To clean mold, use regular white distilled vinegar, typically sold with 5% acidity. You can also use “cleaning vinegar” with 6% acidity. Both are effective at killing mold. Generic brands are as effective as name brands.
Vinegar successfully kills mold on drywall and leather.
This means that the mold is likely to grow back. When bleach is used on porous surfaces, the mold will move deeper into the material to avoid it.
Mildew is a surface fungi identified as a patch of gray or white fungus lying on the surface of a moist area. Mildew is easily treated with a store-bought cleaner and a scrubbing brush. Mold, on the other hand, can have colors that range from black to green and is often the result of a much larger infestation.
Mold generally looks slimy or fuzzy, tends to have a raised texture, and can come in a rainbow of colors, including deep green and black. Mildew is powdery, looks white or gray, always appears flat, and grows on surfaces.
Rinsing is not necessary! If you're simply using a vinegar and water solution to wipe and disinfect, you won't need to rinse. However, if there's also plenty of dirt and grime you're wiping away, you may also want to rinse with some extra water.
Distilled white vinegar is non-toxic but acts much more slowly than chlorine bleach or hydrogen peroxide. While it will kill the mold, the discoloration and stains may remain and require additional scrubbing with a household cleaner. Distilled white vinegar can be used safely on most porous and non-porous surfaces.
Bleach and vinegar can both kill mold, but vinegar is much more effective for removing mold from porous materials. This is because bleach only kills mold spores on the surface of affected materials. Vinegar will penetrate porous materials and kill the mold at the roots.
Mold professionals use expensive, professional equipment such as HEPA (High Efficiency Particulate Air) air scrubbers, HEPA vacuums, commercial-strength dehumidifiers, etc. Regular handymen won't have that stuff.
For a diluted bleach solution, mix three parts water with one part bleach in a bucket. You can also use white vinegar to kill mold. Don't forget to test a small, discreet area first. Bleach and other chemicals can discolor concrete that's been colored or stained.
Covering mold with paint is a waste of resources because the mold will continue to thrive and grow underneath. Eventually, the paint will bubble and peel off, and the mold will be exposed once again. Mold and mildew are an indication of potential moisture issues that need to be remediated before painting the surface.