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How Long To Wait Before Sealing Grout: Answered

Wanting to know how long you should before applying a grout sealer is important. Because you can destroy a beautiful tile floor by applying grout sealant before the grout has dried. 

How long to wait before sealing the grout?

Grout dries in a period of time ranging from 24 to 72 hours. Depending on the type of grout, drying time can vary greatly. It also depends on the humidity level and whether you’re working inside or outside. Generally, three to seven days are recommended before grout is exposed to any moisture.

Does what you’ve seen so far in the overview look appealing to you? In the section below, you’ll find a complete sequence of instructions. 

Spare us some time and read along to find out the answer!

What Happens If You Apply Grout Sealer on Wet Grout?

Here’s what can happen if your grout doesn’t dry properly: flakes and peels. These happen due to the sealant being applied before the grout has thoroughly dried. 

The grout has the chance to peel and flake, reducing its overall strength and look. If this happens, the grout may go bad pretty quickly.

Here are some of the things that happen for applying sealer before your grout drying out-

Weak Joints 

Grout can’t offer a firm bond between the tiles if it doesn’t dry properly. Consequently, you’ll find that the grout has a few defects. These problems weaken the joints, allowing moisture to seep beneath the tiles.

Crumble and Crack 

Not letting the grout dry properly before using sealant raises some more risks. For example, your grout will start cracking and crumbling sooner than you’d expect. 


If you use white or light-colored grout, this is more visible. If you don’t give the grout enough time to dry, it will discolor. You’ll then have to fix the discoloration of the grout

Mildew and Mold

Mold and mildew growth are more likely if the grout isn’t allowed to dry completely. Because of the porous nature of grout, mold and mildew are seen between tiles. 

Through splits, breakdowns, weak joints, and peeling, moisture can enter the grout. These conditions can result in the growth of mold and mildew. It may be tough to remove the mold without damaging the tiles if it grows behind the tiles.

How Much Time Does Grout Need to Dry?

The drying time for every grout isn’t the same. There are several variables that might affect how quickly or slowly grout dries. These are-

Grout Types

The suggested drying time varies depending on the type of grout used. Typical grout kinds include:

Cementite Grout

Cementitious grout typically takes 72 hours to dry. In residential projects, cementitious grout is widespread. With water, it turns into a sand-like texture. 

A flat trowel should be used to apply the paste. To achieve maximum hardness, it incorporates a water-retentive ingredient. This is what keeps the grout moist.

Sanded and Unsanded Grout 

It’s possible that you have sanded or unsanded grout. Wider gaps and floor tiles benefit from sanded grout’s reduced shrinkage and cracking. Grout that has not been sanded is appropriate for vertical surfaces, like shower walls. A similar drying period of 72 hours is required for sanded and unsanded grout.

Furan Grout

Furan grout dries in 24 hours on average. You might be in doubt of the drying time. In that case, refer to the grout’s container for specific directions, such as how long it takes to cure.


Moisture affects grout drying time. If your bathroom is more humid than your kitchen, your grout will dry slower. Outdoor humidity might also impact it. Grout takes longer to dry in Florida than in Las Vegas.

Indoor plants can also delay grout drying. Plants such as lilies and philodendrons expel moisture. This increases indoor humidity.

It also takes longer for grout to dry in damp environments.

Indoor or Outdoor

Grout takes longer to dry outside than inside. Particularly when it’s rainy, snowing, or cold outside.

Even in excellent weather, it takes at least seven days to cure properly. If bad weather is forecasted, a tent can be used to cover the area.

Grout needs 72 hours to cure within indoor projects. Some grout can dry quickly but that depends on its type.

How Can One Quicken the Drying Time of Grout?

There’s a chance you won’t be able to wait long enough to dry the grout. In that case, you would want to speed up the drying time of your grout. 

But is it possible?

You can’t do much to fasten the process. This is due to the chemical reaction. That occurs during the curing process of the grout. 

You can, however, keep it from slowing down as a result of outside influences. Try these suggestions, for example:

  • Keep the air dry by using an air conditioner or dehumidifier. Only when the air is dry, the surface dry faster.
  • To evenly spread the air, turn on a fan.
  • Take all the indoor plants out of the room. You can put them in your garage.
  • Avoid letting your grout come into contact with water, snow, or excessive humidity.
  • For grouting, always adhere to the manufacturer’s instructions. Some experts advise drying for 24 hours, while others suggest waiting up to 10 days. 

Don’t have a dehumidifier with you? 

Here are few options for you-

Product 1
Product 2

Grab any of these and maintain the above tips to help your grout to dry faster. Only that way you seal the grout faster. 


Question: What happens if you step on a new floor?

Answer: If you’ve just installed new ceramic tiles in your home, don’t destroy them by stepping on them. While ceramic tiles are resilient, they are susceptible to damage. It happens for the first few days.

Question: Is tiling and grouting possible on the same day?

Answer: With a quick thin-set tile, you may tile and grout on the same day. Otherwise, wait until the tiles are entirely dry before grouting.

Question: Is it necessary to seal grout?

Answer: You seal your grout after installation. But you should do so once a year to keep it looking good. Depending on how much your tiled area gets used, your grout should be steam cleaned yearly.


That’s all the details we have about how long to wait before sealing the grout. Please accept our heartfelt thanks for your precious time and consideration.

If you still have any confusion, get advice from a professional.

Till then, best of luck!