What are Sealers?
Sealers are protective products applied to surfaces to reduce moisture absorption, staining, wear, and other forms of surface damage.
Definition
Purpose
Sealers repel water, stains, chemicals, abrasion and wear. A sealer may help to minimize water absorption and maintenance of the surface on concrete. There are products that are visible finishes, and there are products that penetrate the surface, that don't change the surface characteristics very much. The type of product will depend on the substrate to be installed on, the conditions of exposure, the amount of traffic, and the desired end result.
Examples of Use
- Concrete Surfaces: Concrete sealers are applied to driveways, patios, floors, walkways, and other concrete surfaces to reduce moisture absorption, staining, and surface wear.
- Decorative Concrete: Sealers can protect stamped, colored, or exposed aggregate concrete while enhancing its appearance and finish.
- Industrial Floors: Certain sealers are used on concrete floors exposed to foot traffic, equipment, chemicals, spills, and regular cleaning.
- Masonry Surfaces: Suitable sealers can reduce water penetration into concrete block, masonry, and other porous exterior surfaces.
- Packaging: Vacuum sealers remove air from bags or containers before sealing them, helping protect packaged products from air and moisture.
Notes
- Concrete sealers are generally grouped into penetrating products and film-forming products.
- Penetrating sealers enter the concrete and provide protection without leaving a heavy surface coating.
- Film-forming sealers remain mainly on the surface and can provide a visible finish along with protection from stains and wear.
- Surface preparation is important because dirt, grease, dust, and moisture can affect sealer application and adhesion.
- Sealer selection should consider the concrete condition, location, expected traffic, exposure, and required appearance.
- Sealer takeoffs may include coverage area, product quantity, number of coats, and other materials needed for estimating and application.
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