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The 5 Best Granite Sealers (2022 Review)

Granite sealer is a must-have item for anyone who wants to maintain their granite countertops. In this review, the This Old House Reviews Team researched the five best granite sealers on Amazon to help you find the product that’s right for you and your home. The products included in this article are available at various home improvement stores, local home centers, and online retailers like Amazon.

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Granite sealer prevents liquids, foods, and other stains from penetrating and aging your countertops. The This Old House Reviews Team has selected the best granite sealers on Amazon to protect your countertops from damage. Keep reading to learn more about them.


Top 5 Granite Sealers


Best Multipurpose Sealer: Weiman Disinfectant Granite Daily Clean and Shine

In addition to killing germs, this 24-ounce spray bottle of granite sealer also cleans spills and prevents future ones from seeping into the surface. It also finishes your granite, marble, and other natural stone surfaces with a streak-free shine.

Key Features

  • 24-ounce spray bottle
  • Cleaning, disinfecting, and sealing formula
  • Suitable for granite, marble, limestone, and more

What Customers Are Saying

Customers praised this sealer for preventing everything from streaks to fingerprints from forming on their countertops. However, customers who rated this product poorly claimed that it was too harsh for daily use, requiring them to wear gloves and other protective equipment during application.


Best Penetrating Sealer: Aqua Mix Sealer’s Choice Gold

This penetrating granite sealer doesn’t just protect the top layer of your counter—it gets absorbed into the pores of granite and other natural stone for long-lasting protection. It also protects against both stains that come from food and liquid and moisture vapors that build up in the air of your kitchen.

Key Features

  • One-gallon jug
  • Sealing formula
  • Suitable for granite, travertine, marble, limestone, and more

What Customers Are Saying

From paintbrushes to sponges, customers found that this sealer could be applied to a variety of surfaces with almost any tool. However, some customers found that this sealer left a blotchy, white haze behind, which was particularly pronounced in their floor’s grout.


Best For Small Surfaces: TriNova Granite Sealer and Protector

This granite sealer comes in an 18-ounce spray bottle, making it best for small kitchens with limited countertop space. It can also be used on the grout in your bathroom to prevent mold or mildew growth.

Key Features

  • 18-ounce spray bottle
  • Sealing formula
  • Suitable for granite, marble, soapstone, and more

What Customers Are Saying

Amazon reviewers were stunned by the sealer’s shining and brightening properties. On the opposite end of the spectrum, multiple customers claimed that they applied this sealer more than three times and saw no results.


Best Instructions: Granite Gold Water-Based Sealer

This water-based granite sealer has a nontoxic formula and a fast 20-minute dry time. It also comes with detailed application instructions on the back of the bottle to ensure the best results. These clear instructions make this granite sealer an ideal choice for anyone who has just installed stone countertops and isn’t sure how to properly care for them.

Key Features

  • 24-ounce spray bottle
  • Sealing formula
  • Suitable for granite, travertine, marble, limestone, and more

What Customers Are Saying

Multiple customers claimed that this product did exactly what it said it would, preventing water from being absorbed into countertops and buffing out irregularities. However, customers who rated this product poorly complained that if their countertops weren’t completely dry before applying this sealer, it left a dark stain behind.


Best Quantity: Black Diamond Stoneworks Cleaner and Sealer

This one-quart spray bottle of granite sealer comes with a one-gallon container to refill the bottle when it’s empty. You can also purchase other packs with different combinations of one-quart and one-gallon containers based on your home’s needs. Though it has some sealer mixed into its formula, this product’s primary function is to clean your granite countertops.

Key Features

  • 32-ounce spray bottle
  • One-gallon jug
  • Cleaning and sealing formula
  • Suitable for granite, travertine, marble, limestone, and more

What Customers Are Saying

Customers said that this product was easy to apply, which made the task of sealing even large countertops quick. Several customers also complimented the spray bottle’s wide brim that made refilling without spilling easy. However, some customers complained about the overpowering smell of the product, which forced them to take multiple breaks during application.


Buyer’s Guide

Granite sealer keeps your countertops shiny, smooth, and stain-free for longer. This buying guide will help you pick the best sealer for your granite surfaces.

Size

Granite sealer can come in small spray bottles or large tubs, ranging from one quart to over a gallon in size. Consider how large your countertops are and how much sealer you will need to cover them before making a purchase.

Function

The main function of granite sealer is to create a barrier between the granite and anything that could come into contact with it. This prevents damage and keeps the surface smooth and shiny. However, some granite sealers also offer additional functions, such as cleaning spills and killing germs.

Type

Granite sealers are separated into types based on how they’re made and how they work. These types are:

  • Water-based: This type evaporates faster than other granite sealers, but it doesn’t have a strong odor.
  • Oil-based: Oil-based sealers last longer, but they have a strong smell and may leave a sticky residue behind.
  • Penetrating: Penetrating sealer seeps into the granite’s pores to protect it from the inside out.
  • Coating: This type of sealer creates a moistureproof seal on the outside of the granite countertop that blocks dirt and bacteria.

Duration

A good granite sealer can last anywhere from six months to five years. However, even if your countertop is sealed, be sure to clean it regularly. If you don’t clean your countertop, your sealer will need to be reapplied more frequently.

Odor

Some granite sealers give off a distinct chemical odor. Others have a mild odor or no odor at all. Oil-based granite sealers generally have a stronger odor than water-based alternatives, so if you’re sensitive to smells, opt for the latter type.

Frequently Asked Questions

Why should I use granite sealer?

Granite countertops can develop chips, cracks, and stains over time. Applying granite sealer can keep your countertop protected from damage and save you from having to replace it.

Can I use granite sealer on other types of countertops?

Most granite sealers can be used on other types of natural stone, including marble, sandstone, soapstone, limestone, and travertine. However, don’t use granite sealer on wood, metal, tile, quartz, or laminate countertops.

Is granite sealer safe?

Most granite sealers are made from safe ingredients that can come into contact with your skin, but you still shouldn’t ingest them. Once you have sealed your countertop, wash your hands thoroughly, and wait until it’s fully dry before using the surface for cooking or eating.

Why Trust The This Old House Reviews Team

This Old House has empowered homeowners for more than four decades with top-notch home improvement content in the form of television programs, print media, and digital content on its website and social media platforms. The This Old House Reviews Team focuses on creating in-depth product and service review content to help inform your purchasing decision for just about any item or resource that you might need for your home. The This Old House Reviews Team has written over 1,000 reviews on products in the home space, from cordless drills to kitchen trash cans, lawn mowers, and dining room decorations.

We recommend products in each review using an intensive research process, spending hours combing through the best available models on Amazon. For a product to make our list of top picks, it must hold a solid sales record on Amazon, have consistently positive customer reviews, and offer unique features, among other factors. After narrowing down our list of recommendations, we conduct additional research and sometimes in-person testing to ensure that the products meet our standards. Once we conclude the research phase, we craft a well-rounded, user-friendly article that includes our recommended products and additional information to help homeowners like you make the right purchase.

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