The Only Sealant You Need for Granite Countertops

Granite countertops are coveted for their natural beauty and durability. But without proper sealing, even granite can become susceptible to stains, etching, and other damage. Sealing forms an invisible barrier that helps protect your investment in gorgeous granite surfaces. However, not all sealers are created equal. You want one that will provide long-lasting protection for your counters without needing frequent reapplication.

After extensive research comparing granite sealers on the market, we're comfortable proclaiming MB-5 as the best sealer for granite countertops. Keep reading to learn why MB-5 stands out from the crowd and how to apply it correctly. We'll also provide tips on maintaining your sealed granite so it stays looking as flawless as the day it was installed.

Why Seal Granite Countertops?

If you're wondering whether sealing granite countertops is really necessary, consider these benefits:

• Sealing prevents stains from oil, wine, coffee, and other liquids from penetrating the stone surface.
• It protects against etching from acidic foods and drinks like tomatoes, lemon juice, and vinegar.
• Water rings and spots are less likely to form on sealed granite.
• Granite maintains its natural glossy sheen rather than appearing dull.
• Regular cleaning and maintenance becomes easier once granite is sealed.
• The sealer fills in microscopic pores that make granite prone to absorbing liquids.
• Overall, sealing extends the life and maintains the beauty of your granite countertops.

Simply put, sealing is essential to prevent damage and help your granite countertops last. Next, let's look at whether all granite needs to be sealed.

Do All Granites Need Sealing?

While most granite countertops benefit from sealing, some very dense varieties are non-porous enough that sealing isn't necessary. How can you tell if your granite needs sealing or not?

The most reliable way is to test the stone using a few drops of lemon juice or water. If the liquid beads up and sits on the surface, the granite does not require sealing. However, if the juice or water is quickly absorbed, leaving a dark spot, then sealing is recommended.

You can also consult with your countertop supplier or installer. They should be able to advise you on whether your specific granite type needs sealing based on its density and porosity. When in doubt, it never hurts to seal it!

Types of Granite Sealers

There are a few main types of sealers formulated for granite and other natural stone. The two broad categories are topical sealers and impregnating sealers.

Impregnating Sealers

Impregnating sealers work by penetrating below the granite's surface and filling its pores. This type of sealer bonds within the stone to provide an invisible layer of protection.

Some benefits of impregnating sealers:

• Provide long-lasting protection, typically 1-5 years.
• Do not alter the natural appearance of granite.
• Withstand high heat and are scratch-resistant.
• Breathable so granite won't trap moisture.

Impregnating sealers are a great choice for countertops, floors, and other high-traffic areas. They offer durability and reliability.

Topical Sealers

In contrast to impregnating types, topical sealers adhere to the top surface of the granite. They form a protective coating or barrier.

Here are some characteristics of topical sealers:

• Typically silicone or acrylic-based.
• Enhance granite's natural glossiness.
• Require more frequent reapplication than impregnating sealers.
• Can yellow over time and create visibility issues.

Topical sealers work well for lower-use surfaces where appearance is a priority. For kitchen countertops, we recommend impregnating rather than topical sealers.

How to Apply Granite Sealer

Once you've selected an impregnating sealer suitable for granite countertops, proper application is key.

Before sealing, it's critical to fully clean and degrease the granite using a pH-neutral cleaner. This removes any dirt, residues, or previous layers of sealer that could block absorption.

Step 2 - Sealer Application

Follow the product instructions for application directions. Typically, the sealer is applied using a paint pad, lint-free cloth, or spray bottle. Apply evenly across the entire surface.

Step 3 - Buffing

After allowing sealer to sit for the recommended time, go over the surface again with a dry microfiber cloth. This helps remove any excess sealer and buffs it into the stone for maximum penetration.

Step 4 - Cure Time

It's crucial to allow the full stated cure time before using the countertops. This lets the sealer fully set up to achieve its protective powers.

Mistakes to avoid: insufficient cleaning before applying, failing to remove excess sealer, sealing small sections instead of the whole top, and using the countertops before fully cured.

MB-5 Granite Sealer - Our Top Pick

When reviewing the many granite sealers on the market, one emerged as a clear winner - MB-5 from MB Stone Care.

Here's a look at what makes MB-5 the best sealer for granite countertops:

• Silane/Siloxane Formula - Provides maximum impregnation of porous granite.
• Invisible Protection - Leaves no film or residue that alters granite's natural appearance.
• 1-5 Years Protection - Just one application protects for years before reapplication is needed.
• Simple Application - Apply with a pad, lint-free cloth, or spray bottle.
• Heat and Scratch Resistant - Won't degrade from normal kitchen heat or use.
• Safe for Food Surfaces - FDA approved formula is non-toxic once fully cured.

Customers consistently rate MB-5 as long-lasting, easy to apply, and providing the best stain protection. It absorbs deeply into granite pores rather than leaving a surface film. MB-5 earns top marks for keeping granite countertops looking pristine.

Caring for Sealed Granite

While sealing granite countertops provides immense protection, ongoing maintenance is still required. Here are some care tips for sealed granite:

Gentle Cleaning

For routine cleaning, use a pH-balanced stone cleaner. MB Stone Care's MB-6 cleaner is specially formulated for granite. Avoid harsh cleaners like bleach that could degrade the sealer.

Watch Spills

Immediately wipe up spills, especially acidic substances like wine, fruit juice, etc. Acids can etch granite even through a sealer if left to sit.

Use Trivets

Place trivets or mats under hot pans and dishes to prevent thermal shock. Rapid temperature changes can damage granite.

Reseal Regularly

Test countertops yearly with water or lemon juice. Reseal as needed based on absorption. Reapplication every 1-5 years is typical.

Signs Your Granite Needs Resealing

Here are some signs it may be time to reapply sealer to your granite countertops:

• Liquid immediately darkens and absorbs when spilled.
• Splashed water results in dark spots that evaporate slowly.
• Countertops visibly exhibit stains.
• Etch marks appear after contact with acidic foods or liquids.
• Granite lacks its usual polished, glossy appearance.

Catching the need for resealing early allows you to renew protection before extensive damage occurs. Be proactive with testing and reapplication.

Hiring a Pro vs. DIY Sealing

Is it better to seal granite countertops yourself or hire a professional? Here are the pros and cons of each approach:

Professional Sealing

• Experts properly prepare the surface for maximum sealer bonding.
• Specialized tools and optimal product selection.
• Sealer evenly applied with no missed spots.
• Often includes discounted resealing.

• More expensive than DIY.
• Have to schedule appointment.

DIY Sealing

• Significantly lower cost.
• Can seal on your own timeline.

• Easy to make mistakes if unfamiliar with process.
• Harder to get even, consistent application.
• Need to buy supplies and do prep work.

For most homeowners, DIY sealing gives satisfactory results at a fraction of the cost. But for large projects with ornate granite, hiring a pro pays off.

Frequently Asked Questions

In most cases, reapplication is only needed every 1 to 5 years for granite countertops. Test yearly with water droplets to determine if it's time to reseal.

Impregnating sealers like MB-5 are ideal for kitchen countertops. They soak in to provide durable, long-term protection while allowing the granite to breathe.

Yes, impregnating sealers formulated for granite are also safe for use on countertops and surfaces made of marble, travertine, soapstone, and sandstone.

Don't leave your beautiful granite countertops vulnerable to stains and etching. A quality impregnating sealer like MB-5 will provide long-lasting protection for your investment. While sealing granite might seem like a hassle, it only needs reapplication every few years. The small upfront time and cost is well worth preserving the natural beauty of your counters for decades to come.

Still have questions about sealing granite? Reach out and let us know! We're happy to offer tips for choosing the best sealer and properly caring for your countertops.