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Sealing Granite Countertops

Sealing granite countertops is not as hard as you might think and it most likely needs some protection.

When you bought your granite countertop, it was most likely sealed when it was installed, but that may have been years ago.

Although granite is very hard and naturally made up of very hard minerals (quartz and feldspars), it is porous and therefore needs to be sealed from staining agents that may invade those pores and stain the granite.

Sealing granite countertops is not hard and depending on what type of granite you have, can make a difference on how often you need to seal it.

Sealing Granite Countertops

Darker granites tend to be more dense, meaning less porous than a lighter colored granite.

Lighter granites are more susceptiple to staining for two reasons; first, because it's lighter, a stain can be seen more easily and second, lighter granites are usually less dense, thus more porous.

Keep reading and learn how to seal granite countertops for preserving them for years to come.

  1. Clean your granite countertops thoroughly with a neutral cleaner or if it's badly soiled, you can use an akaline stone cleaner to break down dirt and grease build-up.

  2. Once the granite countertop is clean, dry it with a cotton or microfiber cloth. It's very important the granite is dry before any sealer is applied.

  3. Apply the sealer evenly only when you're sure the granite is completely dry, using a lamb's wool applicator or any soft cloth. If you're using Granite Sealer apply the sealer to the surface of the granite and make sure it stays wet a minimum of 3 minutes, ideally 5 minutes.

  4. Remove sealer with a dry cloth after 5 minutes. Buff with a microfiber after all sealer is wiped off.

  5. Usually one coat is enough, but if your granite is very porous you can repeat the process after about an hour.

  6. Avoid moisture for the next 3-5 hours after application.

Granite Countertop Sealer

MB-24 Granite Countertop Sealer (VOC free Water-based Impregnating Sealer)


How Often To Seal

Well, that depends on a few factors. How porous the granite is, what sealer your using and what environmental conditions the granite will up against.

The last factor mentioned is probably really going to determine how long your sealer will protect your granite surface.

If you're sealing granite that's in an exterior environment, it most likely will only last 6 months due to so much sun exposure.

Also, if you bought the cheapest sealer you could find at the local hardware store, it probably won't even last more than a month.

Yes, that's right, I've seen people seal their granite with that sealer in the yellow bottle you can buy at Home Depot, and the granite still wasn't sealed after 3 coats.

Like I said before, sealing granite countertops isn't hard, but then again I do it for living, so maybe I'm just used to sealing granite.

For a quality granite countertop sealer click the link and if you're not sure you can do it yourself, have us seal your granite countertops.

When it comes to sealing granite countertops or just maintaining tile and grout and natural stone we strive to help educate our customers on the best protection they can have, helping them save time and money in costly restoration costs down the road.

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Stone Care Products

Are you a do-it-yourselfer? Always working on your home on one project to another. Check the link below to buy stone care products.
We know you can do it yourself and offer you the same products we use to clean stone and tile.

We Recommend MB-1 Marble, Granite and More Cleaner

Natural stone neutral floor cleaner that's safe for all surfaces, tile, stone, and wood.

We Recommend MB-3 Soap Scum Remover for Shower Cleaning

For cleaning any natural stone, ceramic tile and porcelain shower we recommend MB-3.

We Recommend MB-5 Marble, Granite and More Spray

For daily cleaning of marble, granite and all engineered stones. Great for metal and glass too!

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