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  • 10/30/2024 12:27 PM

The Importance of Sealing Your Natural Stone Countertops: How to Protect Your Investment

Natural stone countertops, such as granite, marble and quartzite, are prized for their beauty, durability, and timeless appeal. However, to ensure that these stunning surfaces remain in pristine condition, regular maintenance is essential—most notably, sealing. Understanding the sealing process and its importance can help you protect your investment and enjoy the longevity of your natural stone countertops.

Why sealing is necessary

Natural stone is porous, meaning it has tiny holes and channels that can absorb liquids and stains. When spills occur—whether it's a glass of red wine, lemon juice or oil—these substances can seep into the stone, leading to discoloration and permanent damage. Sealing marble countertops creates a protective barrier that reduces the stone's porosity, making it more resistant to stains and moisture.

The sealing process

  1. Cleaning: Before applying a sealant, it’s crucial to thoroughly clean the countertop. Use a gentle, pH-balanced cleaner to remove any dirt, grease, or residues. Ensure the surface is completely dry before proceeding.

  2. Choosing the right sealant: There are two main types of sealants: topical and penetrating. Topical sealants create a film over the surface, while penetrating sealants soak into the stone to form a protective barrier. For natural stone countertops, a penetrating sealant is typically recommended, as it maintains the stone's natural appearance and texture.

  3. Application: Apply the sealant according to the manufacturer's instructions. This usually involves using a clean, soft cloth or applicator to spread the sealant evenly across the surface. Make sure to cover all areas, paying extra attention to seams and edges.

  4. Drying time: Allow the sealant to dry as per the product instructions. This may take several hours or even overnight. During this time, avoid using the countertop to ensure the sealant sets properly.

  5. Curing: Some sealants may require a curing time, where the stone needs to be left undisturbed for a specific period. This ensures the best protection against stains and moisture.

Benefits of regular sealing

  1. Stain resistance: Regularly sealing your countertops significantly increases their resistance to stains. This is particularly important in high-use areas like kitchens, where spills are common.

  2. Enhanced longevity: By protecting against moisture and stains, sealing helps extend the life of your natural stone countertops. This means fewer repairs and replacements over time, saving you money in the long run.

  3. Easier maintenance: Sealed surfaces are easier to clean. Stains and spills can be wiped away more easily without penetrating the stone, making daily maintenance less of a chore.

  4. Retained beauty: Natural stone is an investment, and sealing helps maintain its aesthetic appeal. Regular sealing keeps the stone looking vibrant and new, enhancing the overall beauty of your home.

  5. Increased resale value: Well-maintained natural stone countertops can significantly increase your home’s resale value. Potential buyers are more likely to be attracted to a home with beautiful, pristine surfaces.



Sealing your natural stone countertops is not just an added step in maintenance; it’s a crucial process that protects your investment and enhances the longevity of your surfaces. By understanding the sealing process and committing to regular maintenance, you can ensure your countertops remain beautiful and functional for years to come. If you’re unsure about or need assistance sealing marble countertops, contact GMS Werks for expert guidance and professional sealing services. Your countertops deserve the best care!

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