Best Concrete Sealers

concrete sealers play a major role in strengthening and protecting concrete works. A number of concrete sealers are now available, including gum resins, linseed oil, silicon derivatives and film formers such as acrylics, urethanes and epoxies.

Film-former sealers containing solvent-based acrylics are the best choice for sealing surfaces in the case of outdoor applications, as these allow easy escape of moisture. If working with heavyweight concrete blocks, urethanes and epoxies are the most suitable.

Epoxy sealers are ideal for industrial environments, concrete countertops, and food preparation areas since it can form a thicker and tougher film for chemical resistance. Significant types of epoxies are epoxy penetrating sealers and water-based epoxy sealers, which are used in marine applications. For maintaining concrete durability in highways, epoxy-based sealers coated with steel are used. In order to provide an abrasive-resistant finish to commercial areas, urethane sealers are the best. Urethanes can last five to eight years and epoxies up to 15 years.

Concrete penetrating sealers such as silane, siloxane, and siliconate are the most excellent alternatives to treat concrete structures and parking garages affected by deterioration and acid rain. The main advantage of penetrating sealers is that they penetrate into the capillaries of the concrete surface and safeguard the concrete from stains, abrasions, and other harmful factors.

Best concrete sealers must be environmentally safe. They should also have the ability to form an impenetrable barrier to protect concrete surfaces from bacteria, fungus, and corrosive materials such as acids and salts. Further, these should not alter the surface appearance of concrete surfaces. The durability of a sealer depends on the wear and tear of the surface, the maintenance schedule, and the use of appropriate chemicals. It is best to avoid harsh chemicals and cleaners.

In the US, there are a number of local hardware and online stores to provide the latest as well as the best in concrete sealers.

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Clear Gloss Concrete Sealers

A clear gloss concrete sealer is an acrylic resin system with built-in water repellence. Clear gloss concrete sealers generally consist of low volatile organic compounds, which are non-inflammable and non-staining. They ensure outstanding adhesion and durability, by repelling moisture and resisting efflorescence, marring and stains.

A clear gloss concrete sealer is chiefly used to provide a high gloss finish along with a wet look to concrete surfaces. It also helps to protect the concrete from chemicals such as brake fluid, transmission fluid, motor oil, salt water, bleach and gasoline. Clear gloss concrete sealers are most effective to treat concrete patios, driveways, exposed aggregate, garage and basement floors, porches, steps, and sidewalks. It is also applied over acid stones, untreated bricks, and unglazed tiles.

Clear gloss concrete sealers are usually applied directly on bare concrete surfaces. Sometimes, these are used as a top coat to provide superior protection. Before applying clear gloss sealers, it is necessary to prepare the surface, which includes removal of dirt and oil. Some concrete surfaces may need acid-etching. In the case of previously painted concrete surfaces, all chalk and peeling paint must be removed. For concrete surfaces coated with high gloss items such as epoxy and urethane, the surface is required to be abraded to remove the gloss. A floor scrubber or an abrasive scrub pad will best serve the purpose.

It is also vital to test for product compatibility, prior to the usage of clear gloss concrete sealers. For best results, a minimum of two to three coats is required. To apply clear gloss concrete sealer on porous concrete, airless sprayer is the most recommended equipment. A stationary pull-along applicator or a brush can be used for applying clear gloss concrete sealer in smooth surfaces.

At present, a choice selection of clear gloss concrete sealers formulated from advanced technologies is available. Concrete sealers with non-toxic, bio-based penetrating systems are suitable for green buildings and structures with complaints regarding air quality.

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