Try Concrete Stain
The simplest path to reviving tired pavers is to apply an acrylic-based semitransparent concrete stain, such as Behr Premium Semi-transparent Concrete Stain ($27/gal.; Home Depot) or Valspar Semi-transparent Concrete Stain ($28/gal.; Lowe's).
Over time, the continuous high-pressure blast of water will erode the layer of color on the pavers and expose the stone and aggregate contained in them. Oftentimes, the stone and the aggregate do not retain the color of the pigments used and will appear dull.
Staining concrete pavers can be an excellent choice. Whether you're aiming for a complete color transformation or a simple refurbishment, there are several methods and products at your disposal to achieve the perfect finish.
One particularly effective stone enhancing sealer that works on concrete pavers too is Ager Tiger. Using this product to darken and seal virtually all of your concrete stone surfaces is easy. The product is designed to enhance the colors and create a protective barrier on porous stone surfaces, including pavers.
CLEAN PAVERS WITH SOAP OR DETERGENT
Directly apply dishwashing soap or laundry detergent to the smudge and let it sit for at least 2 hours or longer if time permits. Reinforce it by pouring dish soap and water mixture. Use a bristle brush to scrub your paver lightly.
Mild detergent and water.
Mix some mild dish soap with water in a bucket to create suds, then use a brush or a sponge to scrub the surface of the pavers. If your pavers are textured or have intricate designs, this cleaning method can be gentler than a power washer.
Prepare a mild, non-acidic cleaning solution.
If you're going the DIY route, all you need to do is grab a large bucket and combine warm water with a mild degreasing dish detergent. Stir the solution well, then evenly distribute the solution over the pavers. Do not use acid-based cleaners as this can damage the seal.
The answer is yes. However, you can reduce the fading by investing in sealants and taking care of your pavers by killing weeds when they appear in between them and fixing them when they get loosened.
Sealing pavers enhances the bricks' color
Some call it the wet look. Some call it the enhanced look. But either way, what it does is it darkens and enriches the colors of the brick. It does not change the color, however.
Once again, acetic acid will wreak havoc with your block paving. Porous stones like limestone and sandstone are more susceptible to damage than most, as the vinegar can seep into the stones themselves, though even sealed and non-porous stones can discolour and bleach.
Similar to cleaning pavers with muriatic acid, avoid an intense concentration of bleach, as it can damage the pavers.
A dish soap, like Dawn, is a safe place to start. The surfactants in dish soaps are designed to remove oil and grease, they're gentle enough to be used without issue on your pavers. In a bowl or bucket, mix the soap with water and pour it onto the stain and agitate. Rinse and repeat if needed.
Baking soda is an amazing household cleaner, and it can work really well on your pavers too.
The pressure washer in combination with a dirt cutter is an excellent option. This removes not only weeds and moss from the surface, but also from indentations. Keeping up with this type of cleaning means that there is less time for weeds to grow. It also helps to maintain the beauty of the paving stones' surface.
OxiClean is a powerful concrete cleaner that works well on various materials, including pavement and grout. This concentrated solution provides excellent cleaning without leaving residue.
Simple Green is one of the best cleaning products for dirty pavers. It doesn't have any harmful chemicals that could possibly warp your precious driveway. Less chemicals mean there's a less likely chance your paver stones will change to a weird-looking color.
Water and mild dish soap is a popular cleaning solution because it's easy to find at home and it won't damage brick, but it will tackle stains. The BIA recommends using hot water for surface cleaning with a detergent. White vinegar and water, another common household cleaner, can also be used on mildew.
When you apply a sealant to your pavers, it gives them a clean, wet look with a glossy finish, depending on the finish of the sealant you use. It will not alter the color of the paver but will instead highlight the hue of the material and enhance the color of the pavers.
For human-made colored concrete paving slabs or concrete pavers, we don't recommend the use of bleach for cleaning. That's because the substance could fade your paver colors if regularly cleaned with bleach over a long period.
Whether your patio is sealed concrete or cement, or even sealed concrete pavers, a bleach and water solution makes it easy to clean away built up soil, stains from leaves and pollen, mold, mildew and algae.
Although bleach is great at the whitening effect, you can use peroxide to achieve this. Hydrogen peroxide is an oxygenated bleach. It is safe for plants, so when you rinse this solution, it won't harm anything. It works together with the dish soap and baking soda to remove dirt and whiten dirty concrete.
The calcium carbonate creates the whitish haze on the surface of the concrete pavers. As the moisture evaporates off the surface of the pavers, the whitish haze becomes more pronounced. And as naturally as the efflorescence appeared, it will fade.