Epoxies create a very shiny surface and are subject to scratching. They offer a durable, hard surface that is very resistant to staining, but they can be affected by UV light if a UV inhibitor is not part of the formula. Acrylic sealers can scratch, so periodic reapplications are required for upkeep.Įpoxies come in hundreds of different formulations, but two-component systems are typically used for concrete. Water-based products are less durable than solvent-based, but, overall, they offer moderate protection and some heat resistance. Acrylic sealers can be brushed, sprayed or rolled on to the concrete. These sealers dry water-clear and are UV-resistant. They come in solvent-based or water-based formulations (solvent-based products are often preferred). And, because it is wax, warm temperatures can cause it to melt and acids can strip it away.Īcrylics are a commonly used sealer. It is easy to apply and, usually needs to be reapplied regularly to remain effective. Wax produces a low- to moderate-sheen finish. There are a variety of waxes that can be used, including plain beeswax however, automotive waxes should be avoided because of additives in those formulas. Wax is the most basic film-building sealer. There are also formulations that are a combination of both.Ĭoncrete countertops sealed with penetrating sealers offer some degree of protection, but it is still important to quickly wipe up water, acidic liquids, and substances that could stain the surface. Repellants, such as silanes, siloxanes and fluorocarbons, work by increasing the surface tension to cause beading. Liquid hardeners work by decreasing the porosity of the concrete. Penetrating sealers soak into the concrete surface and dry to a nearly invisible appearance. For the sake of our brief discussion, the experts at the Concrete Countertop Institute divide concrete countertop sealers into two main categories: penetrating sealers and film-building sealers. Often, you can also acquire appropriate knowledge when you take in-depth concrete countertop training. If you are new at creating concrete countertops, it is wise to consult with an experienced countertop contractor to learn which sealers work best for specific countertop applications. In the kitchen, a prime issue is whether a sealer is food-safe. Methods of application may be an important consideration. Each has its own performance characteristics and maintenance requirements. Here are some tips to help you choose the right concrete countertop sealers.Ī wide range of materials can be used to seal concrete countertops. While sealers are not a total guarantee, they can go a long way in ensuring a concrete countertop retains its “like new” appearance for a good long while. The acids in vinegar and lemon juice can etch the surface, and the strong colors in tea, red wine and mustard can cause stains. Concrete countertops need protection from everyday abuses.
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