How To Seal Granite Countertops

Date: April 20, 2021
Author: Jon Smith
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People love granite for more than its sleek, high-class look. Aside from aesthetics, a big benefit to selecting granite countertops in the kitchen and bathroom over alternative materials is its durability and resistance to staining. Even so, granite countertops are an investment — and you want to properly maintain any investment so that it looks great long term.

That said, in order to completely eliminate the likes of staining and damage from cleaning products, food, drinks, and more, sealing should be considered as an added measure. In fact, doing so is recommended by most fabricators and installers.

The good news is that it's fairly easy to seal granite countertops and there is a bevy of products out there to help you do it.

In other good news, these sealers typically only need to be applied every six months to one year, so it's not something you'll have to incorporate as part of your weekly household chores. Here's a closer look at the sealing process and the products to help you do it:

Sealing Granite: A Step-by-Step Process

Before we get into some of the products to help you properly seal your granite countertops, here's a basic overview of how it's done:

  1. Give it the water test: Though you should consider reapplying the sealer every six months to one year (on average), you can give your granite the "water test" to truly see if it's necessary. Perform this test by pouring small amounts of water on several areas of the countertop and then checking on the water after about 30 minutes. If the puddles are still there, you likely don't need to reapply the sealer. If the countertops have absorbed it, however, then it's likely in need of a sealer.
  2. Clean the countertop thoroughly before applying the sealer. Follow your cleaning manufacturer's recommendations on cleaning. Some advise cleaning up to a day in advance of applying sealer, while others say you can clean the countertop minutes before applying sealer.
  3. Follow the directions on the sealer that you're applying. For instance, some sealers are sprayed on and wiped in while others are applied to a cloth, roller, brush or special applicator and wiped on. Wear gloves and use clean, unused products. Depending on the contents of the sealer, you may also want to wear a facial covering and ensure adequate ventilation.
  4. Start by applying the sealer to a more "hidden" test area to ensure it doesn't impact the finish. If all goes well, apply the sealer according to the product's directions over the entirety of the countertops. Sealer is often applied in a circular motion, or in vertical or horizontal strokes.
  5. After the sealer has been applied, wait for it to absorb. Usually, the absorption time is 15 to 20 minutes, but it can vary based on the product.
  6. After the absorption period has passed, wipe away any excess cleaner with a clean rag.
  7. Wait for the sealer to fully cure — which can take up to a couple of days — before placing anything on it or allowing the countertop to get wet.

Granite Countertop Sealing Products

Here's a look at some of the best granite sealers to properly seal your granite countertops with and directions on how to use them:

Granite Gold Sealer

Step 1: Spray Granite Gold's sealer onto the countertop in sections of about 3 feet at a time. Immediately wipe the sealer into the granite in these 3-foot sections.

Step 2: Dry it with a lint-free cloth following application.

Step 3: For better protection, repeat the above steps two to three more times, waiting about 20 minutes between subsequent applications.

Dry-Treat Stain Proof Plus Sealer

Step 1: Start by determining your granite surface type and then assessing the Dry-Treat application chart to ensure you're using the proper amount of solution.

Step 2: Ensure that the surface is dry (consider using a moisture meter to verify). Though optional, you can dab a rag with acetone and apply a final cleaning of the surface.

Step 3: With a lambswool applicator, begin to apply the solution in gentle strokes in one direction. Only apply as much solution is as necessary to lightly saturate the surface of the granite.

Step 4: Let the countertop dry for about 10 minutes and then apply a second coat if necessary. If you apply a second coat of sealer, apply it in a different direction than you did the first coat. For instance, assuming you used vertical strokes for your first coat, use horizontal ones for your second coat.

Step 5: After 10 minutes of applying your second coat, use a microfiber cloth to wipe off any excess sealer.

AKEMI Stain Repellent Nano Sealer

Step 1: Acquire an AKEMI application pad to apply the solution.

Step 2: Simply dip the AKEMI application pad into a pail of the solution and apply the Repellent Nano in either horizontal or vertical strokes.

Step 3: Wait 20 minutes following application and use a dry cloth to remove any excess sealer.

TriNova Granite Sealer and Protector Sealer

Step 1: Spray the granite countertop surface with TriNova in 3-foot sections and use a dry microfiber cloth to work it into the surface.

Step 2: Wait 1 to 2 minutes after application and wipe the countertops completely dry.

Black Diamond Sealer

Step 1: Spray the granite countertop with Black Diamond and use a painting pad to spread the sealer across the countertop in either vertical or horizontal strokes until you achieve complete coverage. Work in 3-foot sections.

Step 2: After the sealer is worked in, use a microfiber cloth or paper towels to dry the countertop.

Rock Doctor Sealer

Step 1: Shake the Rock Doctor aerosol can, then hold it 6 to 8 inches away from the countertop and spray it evenly over the surface.

Step 2: Let the sealer stand for 2 minutes.

Step 3: Begin wiping the sealer in a circular motion across your granite countertop until it's evenly distributed.

Step 4: Let the sealer dry.

StoneTech BulletProof Sealer Sealer

Step 1: Pour BulletProof sealer into a pan and gather a paintbrush, low-knap roller, or a low-pressure sprayer to apply an even coat to the countertop. Apply it in small sections.

Step 2: After you've applied the coat, let it sit for 10-15 minutes.

Step 3: Add another coat of the BulletProof sealer.

Step 4: Wipe the countertop dry of excess sealer with a microfiber cloth.

Stone Care International Granite and Stone Sealer

Step 1: Shake the bottle of sealer and then use a microfiber cloth to apply it to the countertop surface.

Step 2: Wait 3 to 5 minutes after application and apply a second coat (if necessary).

Step 3: After 30 minutes of your final application, use a dry cloth to wipe away any excess sealer.

Weiman Granite Sealer

Step 1: Spray the entire surface of the countertop with Weiman Granite Sealer until it is evenly wet and let sit for 5 minutes.

Step 2: After 5 minutes, use a towel or cloth to work in and remove any excess sealer. Wipe in a circular motion.

Step 3: Allow 4 to 6 hours for the counter to completely dry.

Miracle Sealants 511 H20 Sealer

Step 1: Gather a plastic tray to hold the solution, a Miracle applicator tool, and a clean towel. Shake the 511 H20 thoroughly and then pour the solution into the tray.

Step 2: Using the Miracle applicator tool, apply the sealer in either horizontal or diagonal strokes.

Step 3: After application, let dry for 2 to 5 hours.

Step 4: If a second application is necessary, let it stand for up to 5 minutes, then wipe away the excess solution with your towel.

SimpleCoat Sealer

Step 1: Dab a cloth with the SimpleCoat so that it's dampened with the solution, and then apply the solution to the countertop. Apply it in a sweeping motion.

Step 2: Immediately after application, wipe the area with a dry cloth to remove excess solution.

Stone Pro Pro Sealer Sealer

Step 1: Apply small drops of Pro Sealer to the countertop and use either a foam applicator, paper towel, or cloth to spread it over the surface.

Step 2: Keep the countertop wet for 3 to 5 minutes.

Step 3: After 3 to 5 minutes, wipe the countertop dry with a microfiber cloth.

Tenax Tiger Ager Sealer

Step 1: Shake the can of Ager and tip it upside down into a cloth, then apply it to the countertop.

Step 2: Let the sealer sit for 5 minutes.

Step 3: Use a clean rag or paper towel to remove any excess solution.

Tuff Duck Sealer

Step 1: Shake well before use and then apply the solution to a microfiber pad, and wipe the pad onto the countertop.

Step 2: Spread the solution evenly over the countertop to avoid pooling.

Step 3: After application, wait 1 hour and apply a second coat if necessary.

More Premium Plus Sealer

Step 1: Shake before use and then apply a liberal amount of solution to the countertop surface using either a brush, cloth, roller, sprayer, or paint pad.

Step 2: Spread it evenly over the surface and then let the solution sit for 15 minutes.

Step 3: After 15 minutes, wipe away any excess sealer with a clean, dry cloth.

Tenax Proseal Sealer

Step 1: Shake the can of Tenax ProSeal and apply it to a clean, dry cloth.

Step 2: Apply the solution evenly on the granite countertop surface.

Step 3: Take a separate clean, dry cloth and remove excess solution.

Stonetech Impregnator Pro Sealer

Step 1: Using a paint pad, roller, brush or light sprayer, apply the solution onto the countertop.

Step 2: Let the solution sit for 15 to 30 minutes following the application.

Step 3: Use a clean, dry rag to wipe the surface and remove excess solution.

Step 4: Apply a second coat if necessary.

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About Jon - Website Owner

Jon Smith

Hi, my name is Jonathan Smith. I have been in the granite business for many years and have worked my way up from an installer helper to an installer and then a countertop business owner. 

I started my countertop company with very little and grew extremely fast because of my knowledge and helpfulness. I started this countertop resource for 1 main reason. That reason is that there are no countertop websites with all the correct information and none of them are from an industry expert like myself. 

I am still in the trade every single day installing countertops, educating people on the type of material they are using for their homes, and making people's dream kitchens a reality.

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