Sealers for Natural Stone and Grout - Stocked Daily!

To seal is to protect, and porous natural stone and cement-based grout need to be sealed if you want to extend their lifetimes and keep them clean and beautiful.

If I seal my stone and grout, is it 100% protected and stain-proof?

Hand wiping spilled wine off of tile floor

No. A sealer is not a solid, plastic-like barrier that keeps out all elements.


Think of sealer as a breathable layer of protection, like wearing a jacket into harsh weather. If you go out in a Seattle downpour without wearing a jacket, you'll get soaked very quickly. If you wear a good coat, you'll still get wet eventually, but it will take a lot longer for the water to soak through your coat and get to you. Sealers are similar: a layer of protection against outside damage, but not impenetrable.

Sealers provide a good barrier against stains, but they do not protect against chemical damage.

Some examples:

  • Spilled acidic food or liquids (coffee, wine, citrus fruits, vinegar, etc.) left to sit can degrade the sealer on your kitchen backsplash or granite countertops.
  • Toothpaste or hairspray can etch your bathroom's marble countertops.
  • Dripped toilet bowl cleaner can etch your travertine floor.
  • Bleach will strip the pigments from your grout.
  • The wrong cleaner can irreversibly damage natural stone.

Sealer will delay some chemical damage and prevent a lot of staining, but you must still clean up spills and use the proper daily cleaners to keep your stone or grout pristine.

Should I seal my natural stone before or after grouting?

Seal your stone before grouting! Cement-based grout has pigments that can sink into the pores of your stone and stain it. Below are several Philadelphia Travertine samples that were grouted before they were sealed. You can clearly see how the grout tinted the stone and permanently changed its look.

How do I apply (and how often should I re-apply) sealer?


All of our sealers are easy to apply!

  • Pour a small amount of sealer out into a bowl.
  • Using a sponge or clean cloth, rub the sealer evenly onto the surface of the stone and/or grout.
  • Let sit at least 5 min, varies from sealer to sealer.
  • Buff off excess and allow to fully dry.
  • Multiple coats may be necessary for highly porous surfaces.

You can also use our Spray On Sealer to cover large areas or heavily-textured stone.


If using a solvent-based sealer, make sure that you have good airflow and that all pets and children are kept out of the area during the application. If you are sensitive to scents/solvent fumes, get a water-based sealer such as H2O Plus.



Many people think they'll have to reseal their stone every 6 months or every year, which is only the case if you purchase a topical sealer that sits on the surface and wears off quickly. However, a high-quality penetrating sealer can last for 10+ years! 



A penetrating sealer will sink into the stone to provide a deep, long-lasting seal (appx. 10-20 years), while a topical sealer will sit on the surface and wear off more quickly (appx. 1-5 years).


The Water Test

This is our favorite way to test your stone, tile, or grout to see if it needs to be re-sealed or if you need a second (or third!) coat of sealer.


  • Spray some water on the wall tile and/or grout.
  • If it beads up and rolls away, the sealer is doing its job.
  • If the water clings to the tile or grout and starts to darken it within 3-5 minutes, apply more sealer.


  • Put a small dime-sized drop of water on your horizontal surface.
  • Let sit 3-5 minutes.
  • If it beads up and stays atop the surface, it's sealed.
  • If it starts to sink in or darken the surface, it needs more sealer.

Our Sealers

A quart of Miracle Brand Water Based Sealer

Miracle 511 H2O Plus Sealer

  • A water-based penetrating sealer
  • Lasts up to 10 years
  • Great for natural stone, ceramics, and grout
  • Won't alter the appearance of your materials
  • Odorless, Low VOCs
A quart of Miracle Brand Enhancing Sealer

Miracle 511 Impregnator

  • A solvent-based penetrating sealer
  • Lasts up to 20 years
  • Will not change the finish or color of tile, stone, or grout
  • Available in pint, quart, and gallon sizes
A quart of Miracle Brand Enhancing Sealer

Miracle 511 Spray On Grout Sealer

  • 511 Impregnator... in a can! 
  • A solvent-based penetrating sealer
  • Lasts up to 20 years
  • Will not change the finish or color of tile, stone, or grout
  • Good option for heavily-textured surfaces.
A quart of Miracle Brand Enhancing Sealer

Miracle 511 Seal & Enhance

  • A solvent-based penetrating sealer
  • Lasts up to 20 years
  • An enhancing sealer: makes colors of natural stone and grout appear deeper, darker, and bolder
  • Great for unpolished natural stone and for darkening the color of cement-based grout
  • Does not change the finish of natural stone: polished stone stays polished, matte finishes stay matte
A quart of Miracle Brand High Gloss Sealer

Miracle High-Gloss Finish Sealer

  • A water-based topical sealer
  • Adds a high-sheen finish to unpolished natural stone, ceramics, and grout
  • Not for use on already-sealed surfaces
  • Low VOCs

Other Products to Consider

32 oz Spray Bottle of Miracle Brand Clean and Reseal

Miracle 511 Kleen & Reseal

  • A daily cleaner for tile, stone, and grout on floors, walls, or countertops
  • Will not harm or strip sealers
  • Adds a little bit of H2O Plus sealer with each cleaning, increasing the lifespan of the sealer
A quart of Miracle Brand Finish and Sealer Stripper

Miracle Finish Sealer Stripper

  • Strips old sealers, wax, grout haze, coatings, synthetic finishes, grease build up, and deep-set stains
  • No strong odor
  • Not for use on polished marble, limestone, or travertine

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