How to Apply Thompson’s Water Seal to Concrete

Whether you’ve a concrete patio, driveway, or sidewalk, this comprehensive guide will walk you through the simple yet effective process of applying Thompson's Water Seal to concrete. By following these instructions, you can ensure that your concrete remains durable, resistant to moisture, and protected from the damaging effects of water penetration, such as cracks, stains, and deterioration.

What Kind of Brush Do You Use for Thompson’s Water Seal?

When applying Thompsons Water Seal to concrete, the type of brush you use is crucial for achieving a smooth and even coat. A high-quality, synthetic bristle brush is recommended for this task. The bristles should be stiff enough to effectively spread the sealer while ensuring good coverage.

For best results, pour Thompsons Water Seal into a paint tray. This will make it easier to control the amount of sealer being used and provide a convenient dipping point for the brush. Using a paint pad in conjunction with a 4-inch paint brush is also recommended. The pad allows for quick and even application, while the brush helps to reach tight corners and edges.

To apply the sealer, work the pad or brush in the direction of the concretes texture or grain. This will help to ensure that every surface area is thoroughly coated. It’s important to pay attention to all sides of the concrete, including the underside, whenever possible. This will help protect the material from moisture and prolong it’s lifespan.

Before starting the application process, it’s essential to clean the concrete surface thoroughly. Remove any dirt, debris, or previous sealers using a broom or pressure washer. This will help the Thompsons Water Seal adhere better to the concrete and provide optimal protection.

A high-quality synthetic bristle brush and a paint pad are recommended for achieving a smooth and even coat. It’s important to work in the direction of the concretes texture or grain, and to coat all sides of the surface, if possible. Additionally, be sure to clean the concrete surface before applying the sealer for optimal results.

Precautions and Safety Measures When Working With Thompson’s Water Seal

  • Always wear protective clothing such as gloves, safety goggles, and a respirator when working with Thompson’s Water Seal.
  • Make sure the area you’re applying the sealant is well-ventilated to avoid inhaling harmful vapors.
  • Avoid applying the sealant on windy days to prevent it from dispersing and getting into your eyes or onto your skin.
  • Keep the product away from open flames or sparks, as it’s flammable.
  • If you accidentally ingest or inhale the sealant, seek immediate medical attention.
  • Store Thompson’s Water Seal in a cool, dry place, away from children and pets.
  • Dispose of leftover or empty containers following local regulations and guidelines.
  • Avoid prolonged skin contact with the sealant. If it comes into contact with your skin, wash thoroughly with soap and water.
  • When applying the sealant, follow the instructions provided by the manufacturer for best results.
  • If you experience any adverse reactions or symptoms after working with Thompson’s Water Seal, seek medical advice.

It’s crucial to allow Thompson’s Water Seal sufficient time to dry before any rain or other weather elements can impact it’s effectiveness. To ensure optimal results, it’s recommended to wait for a minimum of 24 hours. However, it’s important to note that the drying time may vary depending on the weather conditions. If you plan to apply latex paint on top of the sealant, it’s advised to wait for a minimum of 45 days to ensure proper settling.

How Long Should Thompson’s Water Seal Dry Before Rain?

When it comes to applying Thompsons Water Seal to concrete, it’s essential to consider the drying time before any potential rain. To ensure optimal results and maximum protection, it’s recommended to allow at least 24 hours for the sealant to dry thoroughly. It’s important to note that the drying time may vary depending on the weather conditions.

While it might be tempting to rush the process and expose the sealed concrete to rain before it’s fully dried, it’s crucial to exercise patience. This barrier helps to prevent water seepage and potential damage caused by moisture, such as cracks and chips.

By being patient and giving the sealant the necessary time to settle, you can protect your concrete against water damage and extend it’s lifespan. Remember to consider the weather conditions and adjust the drying time accordingly to ensure the best outcome for your project.

Yes, Thompson’s® WaterSeal® Clear Multi-surface Waterproofer can be used on concrete as a waterproofing agent. It’s a versatile product that can effectively seal and protect various surfaces, including wood, brick, and concrete.

Can Thompson’s Wood Sealer Be Used on Concrete?

Thompsons® WaterSeal® Clear Multi-surface Waterproofer is a versatile product that can be used on various surfaces, including wood, concrete, and brick. While it’s primarily known for it’s wood-sealing properties, it’s also an effective option for waterproofing concrete. With it’s clear formula, the WaterSeal creates an invisible barrier that protects the concrete from water damage, including staining, cracking, and deterioration.

To apply Thompsons WaterSeal on concrete, the first step is to ensure that the surface is clean and free of any dirt, dust, or grime. Use a pressure washer or a brush and mild detergent to thoroughly clean the area. Once the concrete is dry, you can proceed with the application.

Before applying the WaterSeal, it’s crucial to protect any nearby surfaces or vegetation that you don’t want to come into contact with the product. Covering these areas with plastic or drop cloths is recommended. Then, using a brush, roller, or sprayer, apply an even coat of the WaterSeal onto the concrete surface.

It’s recommended to apply multiple coats for maximum protection. Allow each coat to dry completely before applying the next one. Generally, it takes about 24 hours for the WaterSeal to dry, but drying times may vary depending on the temperature and humidity levels.

Once the final coat has dried, you can test the effectiveness of the WaterSeal by pouring a small amount of water onto the concrete surface. If the water beads up and doesn’t penetrate the concrete, it means that the WaterSeal has successfully formed a waterproof barrier.

Whether it’s a concrete patio, sidewalk, or driveway, this product provides a reliable solution for concrete waterproofing.

Applying a garage floor coating not only enhances it’s appearance but also provides essential protection against water damage. A popular option for achieving this is Thompson’s WaterSeal Concrete Care Sealer. This clear finish product not only shields your garage floor from water-related harm but also facilitates effortless cleaning, ensuring a durable and visually appealing surface.

Can You Use Thompson Water Seal on Garage Floor?

Yes, you can use Thompsons WaterSeal on a garage floor. In fact, it’s one of the simplest and most effective garage floor coatings you can apply as a finish. Thompsons WaterSeal Concrete Care Sealer is a clear finish product that offers superior protection against water damage. By applying this sealer to your garage floor, you can ensure that it remains resistant to water and other liquids that can cause staining, deterioration, and mold growth.

After applying the sealer, allow it to dry completely before using your garage.

It’s a simple and effective method that will make your garage floor easier to clean and maintain in the long run.

How to Properly Apply Thompsons WaterSeal on a Garage Floor

  • Make sure the garage floor is clean and free of any debris or loose particles.
  • Thoroughly sweep or vacuum the floor to remove any dirt or dust.
  • Repair any cracks or damage in the floor before applying Thompsons WaterSeal.
  • Use a concrete patching compound to fill in any cracks or holes in the garage floor.
  • Allow the patching compound to dry completely before proceeding.
  • Apply Thompsons WaterSeal using a brush or roller.
  • Start at one end of the garage and work your way towards the other end.
  • Make sure to apply an even coat, covering the entire surface of the floor.
  • Allow the first coat to dry completely before applying a second coat.
  • Apply a second coat if desired for added protection.
  • Allow the Thompsons WaterSeal to dry for at least 24 hours before walking or driving on the floor.
  • Regularly inspect and reapply Thompsons WaterSeal as needed to maintain it’s effectiveness.

When it comes to maintaining the longevity and appearance of your concrete driveway, choosing the right sealer is crucial. There are several options available in the market, but the best ones are the Siloxa-Tek 8510, Lithi-Tek 9500, Siloxa-Tek 8505, Siloxa-Tek 8500, and Cryli-Tek 5500. These sealers offer excellent protection against water, salt, oil, and provide a desirable wet look finish.

What Is the Best Sealer for a Concrete Driveway?

When it comes to sealing a concrete driveway, there are several options available, each with it’s own benefits and drawbacks. One popular choice is the Siloxa-Tek 8510, a sealer that not only repels water, salt, and oil but also enhances the concretes natural appearance. This premium product provides long-lasting protection against the elements, preventing damage and extending the lifespan of your driveway.

For those looking for a simpler solution, the Siloxa-Tek 8505 is a great option. This sealer provides excellent water, salt, and oil repellency, helping to prevent stains and damage. It’s easy to apply and dries quickly, making it a convenient choice for homeowners.

For those who desire a wet look finish, the Cryli-Tek 5500 is a water-based sealer that provides a glossy appearance while still protecting the concrete. This product is UV resistant and long-lasting, ensuring that your driveway will stay looking it’s best for years to come.

Whether you prioritize waterproofing, protection against oil stains, or a glossy finish, there’s a sealer on the market that can meet your requirements. Consider your priorities and consult with a professional if necessary to ensure that you choose the best option for your driveway.

Sealers for Specific Issues: Explore Sealers That Are Specifically Designed to Address Common Issues With Concrete Driveways, Such as Cracking, Spalling, or Color Fading.

  • Crack sealers
  • Spall sealers
  • Color-fade sealers

When it comes to waterproofing concrete, there are different approaches that can be taken. One option is to use topical film-forming sealers, which create a protective layer on top of the material. These sealers dry to form a coating that acts as a shell, preventing water from seeping into the concrete. Alternatively, a penetrating concrete sealer can be used, which soaks into the concrete to provide waterproofing from within. This type of sealer offers a more natural appearance while still offering water resistance.

Does Sealing Concrete Waterproof It?

When it comes to concrete surfaces, applying a sealant is a common practice to protect against water damage. However, it’s important to understand that sealing concrete doesn’t make it completely waterproof. Instead, it creates a layer of waterproofing on top of the material.

Topical film-forming sealers are often used for this purpose. These sealers create a protective coating or shell on the surface of the concrete. This coating acts as a barrier, preventing water from seeping into the material. It also helps to reduce the absorption of other liquids and contaminants, making it easier to clean and maintain the concrete.

On the other hand, penetrating concrete sealers work differently. Instead of forming a visible layer on top of the concrete, they’re designed to soak into the material. This allows the sealer to reach deeper into the concrete, making it more water-resistant.

Thompsons Water Seal is a popular brand that offers both topical and penetrating sealers for concrete surfaces. When applying their products, it’s important to follow the instructions provided by the manufacturer. This typically involves cleaning the surface thoroughly, applying the sealer evenly using a brush or roller, and allowing it to dry completely before exposing it to moisture.

Regular maintenance and reapplication of the sealant are necessary to ensure continued protection against water damage.


By thoroughly cleaning and preparing the concrete, using the appropriate tools and techniques to apply the water seal, and allowing sufficient drying and curing time, one can successfully safeguard their concrete against water damage, weathering, and other potential hazards. Applying Thompson's Water Seal not only enhances the appearance of the concrete, but also strengthens it’s durability, extending it’s lifespan and minimizing the need for costly repairs or replacements.

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