Concrete sealer is a liquid substance that is applied to concrete surfaces. When applied correctly, a concrete coating penetrates into the pores of the concrete and hardens there to form an effective seal. This seal protects the concrete from damage caused by water, chemicals, salt and other contaminants.
Types of Concrete Sealers
There are different types of concrete coatings that can be used for various applications. Here are some of the most common types:
Acrylic Sealers
Acrylic sealers are water-based and low odor, making them a good option for interior surfaces. They are transparent and allow the natural look of the concrete to show through. Acrylic Concrete Sealers protect against water, oil, grease and some chemicals. reapplied periodically as they can wear off over time with use.
Epoxy Sealers
Epoxy sealers form a very tough, chemical-resistant barrier. They are good for garages, basements and other high-traffic interior areas. Epoxy sealers provide long-lasting protection against water, grease, oil, chemicals and abrasion. However, they are more expensive than other options.
Urethane Sealers
Urethane Concrete Sealers coatings offer outstanding hardness and durability. They provide protection from water, chemicals, stains and abrasion. Urethane forms a glossy finish and is commonly used for commercial applications such as warehouse floors. It withstands high-traffic areas very well but is more costly.
Penetrating Sealers
Penetrating sealers are formulated to soak deeply into concrete pores to protect from within. They don't leave a surface coating so the natural look is maintained. Penetrating sealers protect against water damage, dusting, staining and chemicals. However, they don't shield against abrasion like topical sealers do.
Applying Concrete Sealer
Proper application of concrete coating is important for best results. Here are the basic steps:
- Prepare the Surface - Sweep away any debris. Etch or grind overly smooth surfaces. Allow new concrete to cure fully before applying sealer.
- Apply in Sections - Use a paint brush, roller or sprayer. Work in small, easily manageable sections and keep a wet edge as you go.
- Allow to Penetrate - Let the first coat soak in for 5-10 minutes before adding additional coats. Number of coats depends on sealer type and porosity of concrete.
- Let Dry - Most sealers require 24-48 hours to dry fully between coats and before use. Follow manufacturer's drying time recommendations.
- Reduce Overlap - Apply in the same direction with each successive coat to avoid dark roller lap lines.
- Clean Tools - Rinse brushes, rollers and other tools used for application with warm, soapy water immediately after completion.
Benefits of Using Concrete Sealer
There are many advantages to sealing concrete surfaces with a high-quality concrete coating:
Protects Against Stains - Sealer forms a barrier to prevent liquids, oil, grease and other contaminants from absorbing into concrete and staining it.
Reduces Dusting - The sealer fills pores to prevent fine concrete dust and particles from detaching and scattering on surfaces or being tracked elsewhere.
Improved Appearance - Applying sealer brings out the true color of stamped, stained or colored concrete and creates a uniform satin or glossy look.
Enhances Cleaning - Spills and dirt wipe up much more easily on a sealed surface compared to bare concrete for easier maintenance.
Weather Resistance - Sealer shields concrete from damage caused by water penetration, salt exposure, freeze-thaw cycles, and other environmental hazards.
Extends Concrete Life - Proper sealing protects the concrete material and prevents premature wear, deterioration and cracking over time.
Increased Slip Resistance - Some sealers are treated to increase the coefficient of friction on concrete walkways and floors for better traction.
Choosing the right concrete coating and applying it properly ensures many years of protection and a beautifully maintained concrete surface. With regular reapplication, concrete coating well outpays its cost in preserving both the functionality and aesthetics of stamped, stained and concrete floors, driveways, patios and more.
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