Concrete may be tough, but water, stains, and wear can still take their toll. Choosing the right sealer is essential, not just for aesthetics, but also for protecting your concrete from damage caused by water, chemicals, and other external factors. This guide will explore the various types of sealers available, empowering you to make an informed decision and find the perfect match for your specific needs.

Table of Contents:

Types of Sealers for Concrete

Concrete is a strong and versatile material used in countless construction projects. However, to ensure its longevity and protect it from the elements, applying sealers is crucial. Different types of sealers for concrete exist, each offering unique benefits and ideal for specific uses.

Penetrating Sealers

  • Penetrate deep into the concrete, forming a barrier against water and liquids.
  • Excellent for indoor and outdoor use, protecting against moisture.
  • May alter the concrete’s appearance and require reapplication over time.

Acrylic Sealers

  • Form a protective film on the surface, resisting water, UV rays, and chemicals.
  • Solvent-based and water-based options available, offering easy application and quick drying.
  • Enhance concrete’s appearance with a glossy or matte finish, but may need frequent reapplication in high-traffic areas.

Polyurethane Sealers

  • Offer a durable, long-lasting coating resisting abrasion, chemicals, and UV damage.
  • Suitable for driveways, patios, and floors, providing excellent adhesion and flexibility.
  • Can be expensive and may yellow over time with sun exposure.

Epoxy Sealers

  • Highly durable, resistant to abrasion, chemicals, and stains, making them ideal for industrial applications.
  • Create a thick protective layer, bonding tightly to the concrete surface for long-lasting protection.
  • Can be challenging to apply and require careful surface preparation for optimal adhesion.

Silicate Sealers

  • Penetrate deeply, reacting with concrete minerals to form a durable crystalline structure, enhancing strength and durability.
  • Ideal for densifying and hardening concrete, making it resistant to wear and abrasion.
  • Environmentally friendly, providing long-lasting protection against moisture and chemicals.

Factors to Consider When Choosing a Sealer

Selecting the right sealer for your concrete project is crucial to ensure optimal performance and longevity. Here are some key factors to consider:

Surface Type

  • Porosity: This determines the best sealer type. Highly porous surfaces need penetrating sealers to fill pores and shield against moisture and stains.
  • Texture: Smooth surfaces like a film-forming sealer, while textured ones might need a penetrating option for proper coverage.

Environmental Conditions

  • Exposure: Assess the level of exposure to environmental factors such as sunlight, moisture, and chemicals. Outdoor areas in harsh weather need durable sealers with UV protection, while indoor ones might need abrasion and chemical resistance.
  • Climate: Consider the climate in your area, including temperature fluctuations and humidity levels. Certain sealers may be more suitable for specific climates, such as cold climates where freeze-thaw cycles are a concern.

Desired Finish

  • Gloss Level: Decide on the desired gloss level for the concrete surface. Acrylic sealers offer matte to high gloss options for your desired aesthetic. Penetrating sealers maintain the natural, matte concrete look.
  • Color Enhancement: Some sealers are designed to enhance the color and depth of decorative concrete surfaces. Consider if you want to deepen the natural color or add elements like color flakes or metallic pigments.

Maintenance Requirements

  • Reapplication Frequency: Evaluate the maintenance requirements of the sealer, including how often it needs to be reapplied. Some sealers may require annual maintenance, while others offer long-term protection with minimal upkeep.
  • Cleaning Procedures: Think about how easy it is to clean and maintain the sealed surface. Some sealers are more resistant to stains and dirt buildup, making them easier to manage.


  • Substrate Compatibility: Ensure the sealer is compatible with your substrate (concrete, brick, stone). The wrong type can lead to poor adhesion and performance.
  • Previous Coatings: If the concrete has been sealed or coated before, consider compatibility with the new sealer. Sometimes, removing the old sealer is necessary before applying a new one.


Now that you’re equipped with the knowledge to navigate the world of concrete sealers, it’s time to choose the perfect one for your project! Remember, the best choice depends on your specific needs and preferences.

For expert guidance on best types of sealers for concrete, contact Ener-Spray today for a free quote and get expert guidance on choosing the right sealer.

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