How often should you seal stone countertops?

Author: Rylan Jakubowski  |  Last update: Thursday, September 28, 2023

As a general rule of thumb, we recommend resealing every 2-3 years. While some experts recommend sealing granite annually, most in the industry agree that granite can simply be sealed as needed. However, due to granite's high natural porosity, it's important not to go too long between sealings.

Do stone countertops need to be sealed?

Why Do Stone Countertops Need Sealing? Natural stone material such as granite and marble is porous, and if left unsealed, will allow liquids to seep in and cause damage. Keep in mind that the more porous the stone, the more susceptible it is to liquid damage and stains.

What stone countertops don t need sealing?

Unlike granite, quartz doesn't need to be sealed on a regular basis in order to prevent staining. The nonporous surface makes it an ideal choice for food preparation and maintenance. You can clean these countertops with some warm and soapy water when necessary.

What happens if you don't seal stone?

Water Will Discolor Them

Even something as simple as leaving a cold glass with condensation on your unsealed counters can change them. That's because water can penetrate the stone and leave behind water marks, permanently altering the appearance of your counters and potentially making them look dirty.

What happens if you don't seal granite countertops?

When you don't seal your countertops, they tend to quickly absorb food and liquids, leading to deep stains. Since the countertops are bare, the stains develop within a matter of minutes, even if you are quick to wipe the spill. The countertops not only absorb liquids, but grease and pigments as well.

How Often Should I Seal A Natural Stone Countertop?

How do I know if my granite needs to be resealed?

A simple water test will help you determine if sealer is needed. Pour about a quarter cup of water on a few areas of the counter. See how long it takes for the water to absorb. If the water absorbs into the stone in less than five minutes, the stone does need to be sealed.

Can I seal granite myself?

It is like any other natural material. Wood has its grain, and stone has its pores. Fortunately, it's easy to seal a granite countertop. It takes just a few minutes and requires little more than a granite sealer and a clean pad.

Do granite countertops need to be sealed every year?

Typically, granite should be resealed every 12 to 18 months. Nevertheless, there are some other factors that come into play when determining how often to reseal granite countertops. For example, a lighter colored granite will need to be resealed more often because it is typically more porous.

Is 15 year granite sealer worth it?

A few '15-year' sealants are some of the best chemically engineered sealers available. They penetrate deeply into the stone and provide superior water & oil repellency. However, like all sealers, '15- year' sealers cannot prevent etching and unfortunately, they do not prevent stains for 15 years either.

How do you tell if your stone is sealed?

Apply a drop of water 1 inch in diameter to the stone surface. Allow the water to stand on the stone for 5-30 minutes. If the surface is unsealed, the water will absorb into the stone and darken the surface (absorption speed will depend on porosity of the stone).

What not to use on stone countertops?

If after a few minutes the water has soaked into the granite, then it's time to reseal the stone. DON'T: Use harsh or abrasive cleaners and sponges. Windex; acidic cleaners, like vinegar, lemon, lime; or anything with ammonia or bleach should be avoided.

What do professionals use to seal granite countertops?

Choosing the Right Sealant is Essential

For this reason, look for products in the class known as impregnating stone sealers. They are chosen by professional contractors for sealing granite, marble, and slate countertops. The top-rated product in this class is Tenax Hydrex Impregnating Stone Sealer.

What stone countertop is easiest to maintain?

Quartz countertops are the easiest natural stone to take care of. They are engineered using ground stone and resin, so they don't require regular sealing they way most granite and marble countertops do. This stone is non-porous, so it does not easily stain or etch.

What are the disadvantages of natural stone countertops?

Cons of Natural Stone:
  • Naturally porous and therefore needs to be sealed when installed.
  • Requires regular maintenance and resealing for food safety and aesthetic upkeep.
  • Softer stones, such as marble or limestone, might be chipped or cracked (but can be buffed)
  • Susceptible to stains.
  • Most expensive countertop material.

How do you protect natural stone countertops?

Sealing your stone kitchen countertops is an investment in the future of your home. The best way to protect your investment is by choosing the proper sealer for the area and type of stone you have installed. The best way to protect natural stone is by applying a sealer every year or two.

What stone sealer lasts the longest?

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. Water-based: This type of sealer evaporates faster than other granite sealers and doesn't have a strong odor.

How much does it cost to seal a countertop?

Countertops need to be resealed every year, depending on how much you use them. If you'd prefer to leave the task to the pros, expect to pay between $170 to $350.

Can you put too much sealer on granite?

You don't want to apply sealant too often. If you do, sealant will pool on the surface instead of absorbing into the stone. This will create a dull surface coating that makes your countertop less attractive. The surface coating is easier to damage than the granite, so you might notice scratches and burns.

Can you use Clorox wipes on granite?

Clorox and Lysol sprays and wipes are convenient, but they are not safe for granite countertops. They rarely contain bleach, but they do generally contain citric acid to help remove soap scum. Avoid using bleach as well.

Can you put hot pans on granite?

Granite is Heat Resistant

Placing a hot pan on a well-maintained granite slab will not cause it to crack or weaken. Just remember that repeatedly placing a very hot pan on the same spot may cause granite to discolor.

Does sealing granite make it darker?

It's important to understand that an impregnating sealer should not alter the color or finish of the granite counter. It won't make a polished surface dull, or a matte counter shiny. It's invisible when dry.

Does sealing granite make it shiny?

Resealing granite prevents permanent damage to the stone and restores the original, factory shine. There are many sealers to choose from, but your granite countertops retailer should recommend the best product for your exact variety of stone.

What's the best cleaner to use on granite countertops?

Frequent use of vinegar, Windex or bleach will dull the granite and weaken the sealant. Instead, a little soap and water should do the trick. Add dish soap and warm water to a sponge, get a good lather and begin cleaning. Avoid using abrasive pads, as granite can be scratched.

Do I clean granite before sealing?

Sealing is a simple process. First, thoroughly clean the countertop surface with water and ph-neutral dish detergent, rinse with clean water and dry. As a final step it's a good idea to use a cloth saturated with denatured alcohol (available in the paint department) to do a final wipe down.

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