How to Seal Pebble Shower Floor

A common question many homeowners have is how to seal pebble shower floor. Pebble flooring can be an excellent choice for your shower, but the downside is that it has no coating or protection against water damage. This means that any spills will cause permanent staining and corrosion on the surface of pebble tiles in your bathroom. Luckily, there are ways you can protect this type of flooring from such stains and corrosion with some simple steps! 

It’s essential to ensure that you use enough to leave any gaps where water can seep through. In addition, if your shower has been installed for an extended time, it may have developed cracks or leaks that will need sealing before the silicone application. Read on to know more!

How to Seal Pebble Shower Floor

Why Should You Seal Pebble Shower Floor?

1. To make the pebble shower floor look clean and new;

2. To reduce maintenance for pebble shower floor;

3. To strengthen the adhesion between tiles, stone, and grout joints to prevent cracks or sliding of tiles over time;

4. To protect the surface of the pebble shower floor from water damage, Seal your pebble shower to prevent dirt and mold from turning it black.

5. Your pebble shower floor will look fresh and new for years longer if you seal it.

6. You can use Natural Stone Sealer or any other type of stone-specific sealer, such as a grout sealer, for sealing your pebble shower floor.

7. After you clean your pebble shower floor, allow it to dry completely before you pour the stone sealer on it.

8. If your pebble shower floor is made of porous material, use natural stone sealers after sealing the grout joints with a grout sealer first for best results.

9. When it comes to pebble shower floor installation, you should seal the grout joints before installing tiles to prevent mold from growing inside of them.

10. If you already have a mold problem on your pebble shower floor, do not hesitate to call professionals for assistance with cleaning or painting it.

10 Ways on How To Seal Pebble Shower Floor:

1. Try Pressure Wash:

Pressure wash the surface of the pebble shower floor to remove any dirt or debris that is on the surface. Before pressure washing, sweep up all loose debris from the pebble tiles with a broom.

2. Mix Water With Concrete Sealer:

In a bucket, mix 3-4 parts water and 1 part of a concrete sealer to make a mixture for sealing the pebble shower floor. Use a rubber squeegee to spread this mixture over the entire surface of the shower floor.

3. Pour Concrete Sealer Over The Surface:

Pour concrete sealer directly from its container into a 5-gallon bucket. Fill the bucket halfway with water. Next, dip a large, clean paintbrush into the sealer mixture and brush it over the entire surface of the shower floor.

Pour concrete sealer directly from its container

4. Use High-Pressure Sprayer:

Rent a high-pressure sprayer to apply a concrete sealer to the pebble shower floor. Fill the sprayer with a concrete sealer and use it on the entire surface of the shower floor, including seams between the tile. Use a squeegee to spread out any excess sealer.

5. Use Roller:

Spread a concrete sealer on the surface of the pebble shower floor with a roller. Next, fill a paint tray with a concrete sealer and roll it back and forth across the surface to evenly distribute it.

6. Use Brush:

Pour some concrete sealer into a paint tray and use a brush to apply it to the pebble shower floor. The sealer should be evenly distributed by applying it in strokes from top to bottom and left to right across the surface.

7. Use Sponge:

Pour concrete sealer into a paint tray and dip a sponge into the mixture to apply it to the pebble shower floor. The sealer should be evenly distributed by using it over the entire surface of the shower floor with palm-up strokes.

8. Use Lava Stone or Tile:

Press the lava stone or tile firmly into the pebble shower floor to create a seal. After applying a concrete sealer will keep your pebble shower floor in good condition for several years.

9. Apply Two Coats Of Sealer:

Apply a concrete sealer to the shower floor, and allow it to dry for one hour. Then, apply an additional coat of sealer, and allow it to dry overnight.

10. Seal With Wax:

Apply liquid wax with a sponge over the entire surface of your pebble shower floor to seal it. Allow the wax to dry, and then buff it with a towel.

You Can Check It Out to Make Hot Water Last Longer in Shower

Tips and Advice:

1. Wear safety goggles, gloves, and boots to protect your body from acid burns.

2. Work in a well-ventilated area, preferably outside if possible.

3. Work only during daylight hours to provide adequate ventilation and visible light.

Extend Your Work Time by 
Spraying Water on the Pebbles

4. Extend your work time by spraying water on the pebbles to keep them moist over several days of work rather than completing the job all at once.

5. Wear old clothes when working with acid to avoid ruining them with spills and splashes.

6. After using the acid, carefully dispose of it by pouring it into sealable containers for recycling or disposal by your local waste management provider.

7. Avoid touching the pebbles with bare hands or spilling acid on your skin, as this will cause damage.


If you want to seal your pebble shower floor, the most important thing is to prep it before sealing. That means cleaning with soap and water, then using an abrasive cleaner like Comet on the surface of your pebbles. Once that’s done, allow 24 hours for them to dry out completely before sealing. You can do this by spraying a light mist of water over the whole area every few hours until they’re no longer moist when touched.

This will help ensure that any residue from previous cleaners doesn’t interfere with your new sealant application process! Don’t forget about caulking around all fixtures to keep moisture contained within one section at a time while you are working on another part of the shower. We hope this blog post on how to seal pebble shower floor has given you some insights for your bathroom makeover! If you have any questions, don’t hesitate to comment below.

Angela Ervin

Angela Ervin

Angela is the executive editor of DIY quickly. She began her career as an interior designer before applying her strategic and creative passion to lifestyle and home. She has close to 15 years of experience in creative writing and online content strategy for housekeeping, home decorations as well as other niche efforts. She loves her job and has the privilege of working with an extraordinary team. She lives with her husband, two sons, and daughter in Petersburg. When she's not busy working she spent time with her family.

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