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1 Qt. Penetrating Stone and Grout Sealer


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Product Overview

Stonewalled is a next generation, nano-technology, impregnating sealer that protects porous mineral surfaces from staining. Stonewalled is a niche, high end sealer that transforms porous surfaces into ultra- water, oil and stain repellent super surfaces. Stonewalled also gives the surface non-stick properties, inhibiting the chemical bonding and absorption of pollutants, chewing gum and other sticky materials.
  • 1 and done - 1 coat application and no residue to remove
  • Gum does not bond to the surface; apply to sidewalks and walkways for easier gum removal, with no shadows
  • Environmentally friendly, water based, zero VOCs
  • Natural stone appearance - no change in look or feel of surface
  • Professional quality
  • Protects: stone, travertine, concrete, masonry, marble, limestone, granite, brick, pavers and grout, every mineral based surface that darkens when wet needs Stonewalled
  • Indoor and outdoor use

Info & Guides

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1 Qt. Penetrating Stone and Grout Sealer
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BrandStonewalledFilaCustom Building ProductsFila
Name1 Qt. Penetrating Stone and Grout SealerMP90 Eco Plus 1 Qt. Tile and Stone SealerTileLab SurfaceGard 1/2 Gal. Penetrating SealerFob 1 Qt. Tile and Stone Sealer
Flooring TypeGrout,StoneGrout,StoneConcrete,Grout,Porcelain,Stone,TileGrout,Stone
Flooring Material FeaturesSolvent free,Water basedWater basedStain resistant,Water basedStain resistant
Maximum coverage area (sq. ft.)60430600538
Recommended SurfacesBrick,Concrete,Porous Surface,StoneCeramic Tile,Grout,Quartz,StoneBrick,Concrete,Masonry,Porcelain,Porcelain Tile,Stone,Tile,Tile & GroutConcrete,Grout,Stone
Where to UseBathroom,Floors,OutdoorFloors,OutdoorBathroom,Floors,Kitchen,OutdoorFloors,Outdoor
Flooring Product TypeSealerSealerSealerSealer
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Container size (qt.)
Maximum coverage area (sq. ft.)
Product Width (in.)


Color Family
Commercial / Residential
Commercial / Residential
Dry time (hours)
Flooring Material Features
Solvent free,Water based
Flooring Product Type
Flooring Type
Product Form
Recommended Surfaces
Brick,Concrete,Porous Surface,Stone
Sealer Type
Where to Use

Warranty / Certifications

Certifications and Listings
No Certifications or Listings
Manufacturer Warranty
Surface Solutions, LLC, warrants that surfaces properly applied / treated with Stonewalled will be effective for a period of fifteen (15) years in residential applications and eight (8) years in commercial applications provided the surface is maintained according to Surface Solutions care and maintenance guidelines and not previously sealed or coated. Warranty is not transferrable.

Questions & Answers

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Customer Reviews

  • 4.6
    out of 34 reviews
  • 91% recommend this product
Filter by:
Showing 1-10 of 34 reviews
Easy to use
This stuff is a amazing , one application and just sit back and watch it dry to perfection, Though like every other review ,saying that it’s is true ,But worth it.
by Rubbertoe
    • Recommended Product
    Very easy to use and works extremely well for sealing concrete
    We were looking for something to seal some custom concrete stepping stones we had made for our garden and decided to give this a try. It is very easy to use, just spray it on, let it dry and the water just pools on the concrete, so it works as advertised. The bottle comes with a pump action trigger spray and we barely used any of the solution on our project so this goes a long way. All you need is a kitchen towel handy to absorb any of the sealer if it pools on the surface. We sealed both the underside and the top of our stepping stones so we could stop the water being absorbed into the concrete and causing it to effloresce or crumble over time. We let it cure for the full three days before putting it outside and subjecting it to the 'watering can test' and as can be seen from the pictures, the water just forms droplets on the surface like a freshly waxed car. There was absolutely no change in the shading/color of the concrete between before and after sealing. According to the manufacturer, it can be used to seal stone, travertine, concrete, masonry marble, limestone, granite, brick pavers, grout. Once applied, you cannot walk on the surface for 4 hours, can't get the surface wet for 12 hours and the product is fully cured in 3 days. If you are putting it on a walkway that will be pressure washed, the maximum pressure washing it can endure is 800-1200 PSI. We also really liked the fact that it has no VOCs etc. and doesn't have any strong odor after application.
    by LosRubios
    • Recommended Product
    4 people found this helpful
    Worth the price
    I love the play on names here "Stonewalled" does exactly that - it stonewalls (blocks) liquids from penetrating: "stone, travertine, concrete, masonry, marble, limestone, granite, brick, pavers and grout, every mineral based surface that darkens when wet". I used this sealant to treat the shelves in my bathroom that are notorious for water stains and soap scum and have required frequent cleanings to bring back to their natural finish. Stonewalled effectively has stopped the build up of water stains and I have yet to see any deterioration after several months. The product claims it lasts 15 years in a residential application. We shall see!!! But for the price and the one time application it can't be beat. Thank you Stonewalled!!!
    by HappyCustomerHere
    • Recommended Product
    6 people found this helpful
    Worked and easy to use
    The showers and kitchen backsplash in my kitchen were not sealed. You can tell by adding water to a surface and see if it changes color or not. I used the bottle for my galley kitchen and two bathroom showers and still had plenty left over. You simply clean the surface, allow it to try, and then spray the sealer onto the surface. I used a sponge as well to help evenly apply it to the stone. The product says to keep the area dry 24 hours and is fully cured in 3 days. I followed these directions and had great results. As you can see in the photo the tile that was sealed had water beading and rolling off of it (top) and the one with the wet look (bottom) wasn't sealed. Product is a little pricey but saves you a lot of time compared to other sealers I've used. It also doesn't leave a shiny/glossy look that some sealers do.
    by JerryY
    • Recommended Product
    6 people found this helpful
    Just WOW!
    Ok, this stuff is costly but the performance, WOW! Talk about futuristic stuff, this is based on nano-technology and is hydro-phobic (water shedding). Basically, water beads up and rolls off of anything this stuff is sealed with. I used it on some outside brick that I've had trouble with from water damage in the past. Now that it's treated with Stonewalled, the water just rolls off the brick and even my mortar stays dry as can be. I'll be using this to seal all the tile and grout work in my recent bathroom remodel as well. I'm very impressed with this product! Installation is a snap too, just clean the surface to prep and let it dry. Then spray undiluted stonewalled from a standard spray bottle until you've saturated the stone, and your'e done! Simple as can be. Check out my video to see it in action and watch that water bead up and roll away!
    by Greg
    • Recommended Product
    3 people found this helpful
    Good product, but had to do several times for best...
    Good product, but had to do several times for best results. Tedious.
    by HomeDepotCustomer
    • Verified Purchase
    The product itself is perfectly fine. The only ding is...
    The product itself is perfectly fine. The only ding is that the image has a spray nozzle, but it doesn't come with a spray nozzle. Turns out, you don't really need one, but that was unclear to me.
    by Wren
    • Verified Purchase
    Although this is a little pricey, it was so easy to apply. I got all the flagstone sealed within ...
    Although this is a little pricey, it was so easy to apply. I got all the flagstone sealed within a couple hours. It didn't change the look of the stone and after a few good rain storms the sealer is doing a great job.
    by KS
    • Verified Purchase
    • Recommended Product
    sealed water feature so it holds water now! solved...
    sealed water feature so it holds water now! solved the problem!
    by kg
    • Verified Purchase
    Rating provided by a verified purchaser...
    Rating provided by a verified purchaser
    by HomeDepotCustomer
    • Verified Purchase
    Showing 1-10 of 34 reviews