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What to Use to Seal Granite Countertops

What to Use to Seal Granite Countertops

Choosing the Right Sealant for Granite Countertops

Granite countertops are prized for their durability, natural beauty, and ability to enhance the aesthetics of any kitchen or bathroom. It is crucial to seal them properly to maintain the longevity and appearance of granite countertops. Sealing granite countertops provides an additional layer of protection against stains, spills, and etching, helping to keep them looking their best for years to come. In this article, we’ll explore the options available for sealing granite countertops and provide guidance on choosing a suitable sealant.

Why Seal Granite Countertops?

Granite is a porous natural stone, meaning it can absorb liquids and oils if left untreated. These substances can penetrate the surface and cause staining or damage over time. Sealing granite countertops creates a protective barrier, inhibiting the absorption of liquids and preventing stains. Additionally, a well-sealed countertop helps maintain the natural shine and color of the granite, enhancing its overall appearance.

What to Use to Seal Granite Countertops

1. Topical Sealers:

Topical sealers are often referred to as coating sealers and create a protective layer on the surface of the granite. They are typically made from synthetic materials such as acrylics or polyurethanes. Topical sealers provide good protection against stains, water, and other liquids. However, they may require more frequent reapplication than other sealer types. Topical sealers can also add a glossy or satin finish to the countertop, enhancing its visual appeal.

2. Penetrating Sealers:

Penetrating sealers, also known as impregnating sealers, are designed to penetrate the granite’s porous surface and create a barrier within the stone. They are typically made from a combination of solvents and resins. Penetrating sealers offer long-lasting protection against stains and liquids without altering the natural appearance of the granite. They are suitable for both light and dark-colored granites.

Choosing the Right Sealant:

When selecting a sealant for granite countertops, consider the following factors:

1. Quality and Reputation:

How To Clean Granite CountertopsChoose a sealant from a reputable manufacturer known for producing high-quality products specifically designed for granite or natural stone. Look for sealants that have positive reviews and recommendations from professionals in the industry.

2. Porosity of the Granite:

Determine the porosity of your granite countertop. Darker granites tend to be denser and less porous than lighter ones. A penetrating sealer is recommended for better absorption and protection if your granite is highly porous.

3. Lifestyle and Usage:

Consider your lifestyle and how the countertops will be used. If you have a busy household with heavy traffic in the kitchen or frequent spills, opt for a durable and long-lasting sealer that can withstand regular use.

4. Application and Maintenance:

Read and follow the manufacturer’s instructions for application and maintenance. Some sealers require multiple coats or specific curing times between applications. Consider the ease of application and whether the sealant requires reapplication every few months or has a longer lifespan.


Sealing granite countertops is an essential step in preserving their beauty and protecting them against stains and damage. Whether you choose a topical sealer for added gloss or a penetrating sealer for a natural look, selecting a high-quality sealant suitable for your specific granite is crucial. By considering factors such as porosity, lifestyle, and application requirements, you can ensure long-lasting protection for your granite countertops, keeping them looking stunning for years to come.

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