Masonry

Can You Use Kilz on Masonry? Discover the Pros and Cons

Can You Use Kilz on Masonry

Yes, you can use Kilz on masonry surfaces.

It is important to follow the instructions and guidelines provided by the manufacturer, such as applying it at the recommended temperatures and cleaning equipment and spills properly.

Kilz should be applied in at least two coats, and priming of uncoated or patched areas with KILZ Premium Primer is necessary.

It is important to note that Kilz contains chemicals that may be harmful, so precautions should be taken, such as wearing protective clothing and using the product with adequate ventilation.

Did You Know?

1. Kilz is a brand of primer that is commonly used to seal and cover stains on various surfaces, including masonry.
2. Contrary to popular belief, Kilz is not exclusively a paint brand but also offers specialized primers for specific surfaces, such as masonry.
3. Kilz Masonry Primer is specifically formulated to provide a strong bond to masonry surfaces, making it an excellent choice for preparing surfaces such as concrete, bricks, or stucco for painting.
4. One interesting fact about masonry is that ancient Egyptians are credited with creating some of the earliest examples of masonry construction, including the iconic pyramids.
5. Another fascinating trivia is that masonry structures are known for their longevity, with some ancient Roman masonry buildings standing strong to this day, showcasing the durability and timeless appeal of this construction technique.

Instructions And Guidelines For Using Kilz On Masonry Surfaces

When it comes to using Kilz on masonry surfaces, there are specific instructions and guidelines that need to be followed to ensure optimal results.

First and foremost, it is crucial to apply Kilz at temperatures between 40°F and 90°F. This temperature range allows for proper adhesion and drying of the product.

Additionally, it is important to avoid direct sunlight as it can cause premature drying and potentially affect the overall performance of Kilz.

Before starting the application process, it is recommended to clean the equipment and any paint spills with warm, soapy water. This will not only help maintain the quality of the tools but also ensure a neat and clean finish.

In the case of any leaks or areas that show signs of bleeding through after applying two coats of Kilz, it is advised to re-apply the product to those specific areas.

To achieve the desired results, a minimum of two coats of Kilz are required. This ensures proper coverage and enhances the durability of the masonry surface.

Prior to applying Kilz on above-grade structures, it is important to remove any mildew stains and thoroughly clean the surfaces. This includes removing dirt, dust, efflorescence, and oil. This level of preparation ensures a clean and smooth surface for the application of Kilz.

Another important step in the process is testing for loose concrete. This can be done by pressing tape onto the surface and observing if any concrete particles come off. If there is significant loose concrete, it is recommended to address this issue before applying Kilz. Properly securing the concrete surface ensures the longevity and effectiveness of the Kilz application.

For the best results, it is advised to prime any uncoated, patched, chalky, or adjacent wood and metal surfaces with KILZ Premium Primer before applying Kilz on the masonry surfaces. This step ensures proper adhesion and a uniform finish.

Overall, following these instructions and guidelines will help achieve a successful application of Kilz on masonry surfaces.

Proper Application Techniques for Kilz On Masonry

When applying Kilz on masonry surfaces, it is important to follow proper application techniques to ensure a smooth and durable finish. Here are some key techniques to keep in mind:

  1. Preparation: Before applying Kilz, it is important to properly prepare the surface. This includes cleaning the surface of any dirt, dust, efflorescence, and oil. It is also important to remove any mildew stains if they are present. Proper surface preparation is crucial for the adhesion and longevity of the Kilz coating.

  2. Mixing: It is necessary to thoroughly mix Kilz prior to application. This can be done by stirring the product from the bottom of the can and ensuring that the pigment is well dispersed. Proper mixing ensures that the product performs optimally and provides the desired results.

  3. Application: Kilz can be applied using a brush, roller, or sprayer. It is important to follow the manufacturer’s instructions for the specific application method chosen. When using a brush or roller, it is recommended to apply Kilz in a smooth and even motion, working in sections to avoid drying lines or lap marks. When using a sprayer, it is important to maintain a consistent spray pattern and avoid overspraying.

  4. Drying Time: Kilz requires a proper drying time between coats. It is important to allow the first coat to dry completely before applying the second coat. This ensures proper adhesion and avoids any issues with the final finish. The drying time may vary depending on temperature and humidity, so it is important to refer to the product’s instructions for the specific drying guidelines.

Proper application techniques contribute to a successful and long-lasting finish when using Kilz on masonry surfaces.


  • Proper preparation: clean the surface of dirt, dust, efflorescence, and oil
  • Thoroughly mix Kilz before application
  • Follow the manufacturer’s instructions for application using a brush, roller, or sprayer
  • Apply Kilz in a smooth and even motion to avoid drying lines or lap marks
  • Allow proper drying time between coats
  • Refer to the product’s instructions for specific drying guidelines

Remember to always refer to the specific instructions provided by the manufacturer for best results.

Warnings And Precautions For Using Kilz On Masonry Surfaces

While Kilz is an effective product for masonry surfaces, it is important to be aware of certain warnings and precautions to ensure safe and proper use. Understanding and following these warnings and precautions is essential for the well-being of the applicator and the occupants of the area being treated.

Firstly, it is crucial to read the instructions before opening the can of Kilz. This allows for a comprehensive understanding of the product’s usage and safety guidelines. Additionally, when working with old paint, scraping or sanding may release lead dust. To control lead exposure, it is highly recommended to wear a NIOSH approved respirator during these activities.

To minimize lead dust exposure during cleanup, the use of a HEPA vacuum and wet mop is advised. This helps to effectively remove any lead-containing dust or residue. It is of utmost importance to take all necessary precautions to prevent lead exposure, as it can have significant health implications.

Furthermore, Kilz contains chemicals known to the state of California to cause cancer and birth defects. The presence of these chemicals emphasizes the importance of following safety measures when working with the product. It is essential to avoid contact with skin and eyes, as well as breathing in vapors and spray mist. Wearing appropriate eye protection and protective clothing is crucial during the application process.

Adequate ventilation is also essential when using Kilz on masonry surfaces. Opening windows and doors or using other means to ensure fresh air entry during both application and drying is advised. If difficulty in breathing is experienced, immediate medical assistance should be sought. In case of eye contact, flushing with water is necessary, while skin contact should be washed thoroughly with soap and water. If ingestion occurs, immediate medical attention should be sought.

By adhering to these warnings and precautions, the risk of harm or adverse health effects while using Kilz on masonry surfaces can be greatly minimized. Safety should always be a top priority during any painting or coating project.

Important Tips For Ensuring A Successful Application Of Kilz On Masonry

When using Kilz on masonry surfaces, it is important to keep in mind certain tips to ensure a successful and satisfactory finish. By following these tips, users can achieve the desired results while maximizing the benefits of using Kilz on masonry surfaces.

1. Surface Preparation: Proper surface preparation is key to a successful application. Thoroughly clean and remove any dirt, dust, efflorescence, or oil from the masonry surface. This will promote better adhesion and longevity of the Kilz coating.

2. Temperature and Sunlight: Ensure that the ambient temperature falls within the recommended range of 40°F – 90°F during the application process. Avoid applying Kilz in direct sunlight, as it can affect the drying process negatively.

3. Adequate Mixing: Prior to application, make sure to mix the Kilz thoroughly. Stir the product from the bottom of the can to ensure proper dispersion of the pigment. Proper mixing ensures consistent and optimal performance.

4. Test for Loose Concrete: Before applying Kilz, it is important to test for loose concrete by pressing tape onto the surface. If there is significant concrete loss, address it before proceeding with the application. This ensures a stable substrate for Kilz.

5. Priming: For uncoated, patched, chalky, or adjacent wood and metal surfaces, it is recommended to prime them with KILZ Premium Primer before using Kilz on the masonry surfaces. Priming ensures better adhesion and a more uniform finish.

6. Multiple Coats: Apply at least two coats of Kilz for proper coverage and durability. Ensure that each coat is completely dry before applying the next. This helps achieve a more even and long-lasting result.

By following these tips, users can maximize the effectiveness and longevity of Kilz on masonry surfaces. These tips serve as a guideline to a successful application, ensuring a professional and satisfactory outcome.

  • Properly prepare the masonry surface by cleaning it thoroughly.
  • Keep the temperature within the recommended range and avoid direct sunlight during application.
  • Thoroughly mix the Kilz before using it.
  • Test for loose concrete and address any issues before applying Kilz.
  • Prime uncoated, patched, chalky, or adjacent wood and metal surfaces prior to using Kilz on masonry surfaces.
  • Apply at least two coats of Kilz, allowing each coat to dry completely before applying the next.

Following these tips will help achieve a successful and professional finish when using Kilz on masonry surfaces.

Understanding The Warranty And Limitations Of Kilz On Masonry Surfaces

Kilz provides a 10-year warranty for its product when used on masonry surfaces. It is essential to understand the warranty and its limitations to make an informed decision regarding the use of Kilz on masonry.

The product is warranted for 10 years on vertical and horizontal masonry surfaces when properly applied and cared for. This warranty provides customers with assurance regarding the performance and durability of Kilz on masonry surfaces.

However, it is important to note that the warranty does not cover labor costs or incidental/consequential damages. This means that any costs associated with the application of Kilz or any damages caused by the product would not be covered under the warranty.

To ensure the validity of the warranty, it is crucial to follow the manufacturer’s instructions regarding application and maintenance. Proper surface preparation, application techniques, and regular maintenance can contribute to the longevity and effectiveness of Kilz on masonry surfaces.

In conclusion, understanding the warranty and limitations of Kilz on masonry surfaces helps users make informed decisions and sets realistic expectations regarding the performance and coverage of the product. By adhering to the warranty guidelines and taking proper care of the treated surfaces, users can maximize the benefits and satisfaction obtained from using Kilz on masonry.


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Frequently Asked Questions

Can kilz be used on concrete walls?

Yes, Kilz can indeed be used on concrete walls. Kilz Basement & Masonry Waterproofer is specifically designed for porous concrete and masonry surfaces. This premium paint is formulated to provide superior waterproofing for both interior and exterior applications, making it an excellent choice for above and below grade basement walls, as well as other masonry walls such as retaining walls, cinder blocks, stucco, and brick. With its specialized formulation, Kilz not only enhances the appearance of concrete walls but also provides long-lasting protection against moisture and water damage.

Does kilz seal concrete?

Yes, KILZ Wet-Look Sealer is effective in sealing concrete surfaces. Its high-solids, acrylic-based formula provides a clear, non-yellowing protective layer that enhances the appearance of concrete and masonry. With a high gloss, wet-look finish, it not only seals and protects but also adds beauty to these surfaces. Furthermore, it can be used as a topcoat over paints and stains, adding an extra layer of protection and enhancing the overall aesthetic appeal.

Can I use Kilz as a primer on cement?

While Kilz primer is primarily designed for drywall surfaces rather than concrete, it may still be used as a primer on cement to some extent. However, it is important to note that Kilz does not specifically advertise its product as a concrete sealer/primer. It may be worth exploring alternative options that specifically cater to concrete surfaces for better and more effective results.

Can kilz be used outside?

Yes, Kilz 2® All-Purpose Primer is indeed suitable for outdoor use. This versatile water-based sealer and stain blocker is specifically formulated to be used both indoors and outdoors. Whether you’re looking to paint your front door or spruce up your garden fence, Kilz 2® All-Purpose Primer would be an ideal choice for providing excellent adhesion and protection against stains and mildew.

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