One coat of a solvent-based acrylic sealer followed by a topcoat of a water-based acrylic will provide ample protection for interior stain applications.
Future floor maintenance can be completed with additional coats of water-based acrylic sealers or waxes as needed. Epoxy Sealers: If your stained floor is high traffic, such as a restaurant or other public space, an epoxy sealer may be a good option.
When sealing with an epoxy, thorough moisture testing is a must. Epoxy sealers are popular for stained countertops. Urethane Sealers: This sealer type is the most expensive, but also the most abrasive-resistant. To get a proper bond, urethanes must be applied over a water-based epoxy.
You also should be aware that they are not UV stable. View this comparison chart of concrete sealers. Get information about how they work, primary applications, type of finish, and performance about each type. Acrylic sealers are best for outdoor stain applications because they allow moisture in the slab to escape.
Many contractors prefer solvent-based acrylics over water-based acrylics because they tend to perform better outside. If the shiny or wet look is not desired, silicone-based penetrating sealers are recommended for a matte finish.
Scrub the Area. Begin by removing dirt, grease or mildew with a non-residue cleaner and a stiff-bristled brush. Spread the Acid Solution. Apply a Concrete Stain. Note: If you do not properly neutralize the stain , then the sealer will lose it's bond, which will then have to be stripped and re-applied. If you leave too much residue you could have streaking or discoloration. How long should you wait before applying second coat of sealer over the first?
The acid washing of concrete is a requirement after the concrete has cured sufficiently, in order to remove surface efflorescence and to open the pores before sealing. This will help the sealer to penetrate and result in a superior bond between the sealer and the surface. A water-based sealer can be removed using chemical etching, pressure washing or by mechanical cutting. After it has dried you can apply the water-based sealant.
Keep in mind, if your concrete was stained or dyed using Xylene, it can damage or change the color of the concrete. This test method is used to measure the water absorption rate of both the concrete surface and interior concrete.
By drilling a core and cutting it transversely at selected depths, the absorption can be evaluated at different distances from the exposed surface. The core is drilled vertically or horizontally. Test for porosity by placing 0. If water is not absorbed within one minute, the floor is considered non- porous. Non- porous concrete surfaces are generally rendered porous by mechanically abrading the concrete's surface. The easiest way to remove a concrete sealer is to begin by acid etching the surface of the concrete with muriatic acid.
Next, you have to neutralize the acid before washing down the concrete surface for a final time. The acid etching process will remove the old concrete sealer completely from the concrete slab. Can you paint over a sealer? A sealer's job is to repel things. This can apply to creating a poor bonding situation with paint. If you really must paint the surface, take the gloss down to the surface and then use sandpaper to roughen up the surface to improve the "grabbing" ability of the paint.
Many people wonder if garage floor epoxy can be applied to concrete floors. Therefore, if your floor is sealed , epoxy coating or any other kind of paint cannot be applied to it because it will never stick and it will never be as effective as intended. A fresh coat of paint or stain can really spruce up concrete basement or garage walls and floors and bring new life to a worn concrete patio.
Concrete paints and stains help to mask surface discoloration and signs of wear and tear and they extend the life of concrete by preventing further damage. A sealer will improve the appearance of stamped concrete , prevent fading caused by UV rays and protect it from stains and harmful chemicals. Solvent base sealers tend to over darken concrete stain, looking as it does when saturated wet with water. Water base sealers such as Clear Shield, makes the concrete look as it does when damp with water, not saturated wet but not dry either.
Rather, in between, damp. Which brings out the marbling, mottling and subtle color variances more, while maintaining a more natural look. A common question that we also get is "Will sealing stained concrete make it more slippery"? We consider this to be kind of a trick question. Anytime you are applying any kind of concrete sealer, it will usually be more slippery than unsealed concrete, especially when wet. But there are a few factors at play here. Solvent based sealers are definitely more slippery than unsealed concrete, but water based sealer is less slippery if applied properly than a solvent based sealer.
This is one of the reasons that we suggest water based sealer over solvent based. Our water based sealer is meant to be applied in two thin layers on well brushed concrete. If applied properly, it should not make the sealed concrete much more slippery than the unsealed version. We also sell a traction additive that you can apply to the sealer to help with this issue if it arises.
Also, when applying the wax over the sealer, it helps a lot because the wax is less slippery than the sealer. If you're concerned with how slippery it will be, then as always, we suggest that you apply the sealer to a small test area, to test out both the appearance of the sealed concrete and see how slippery it is, before doing the entire area.
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