$25275
Save up to $100 on your qualifying purchase.
Apply for a Home Depot Consumer Card- Permanently seal, strengthen, and protect your concrete
- Seals against water seepage, water vapor, and even radon gas
- Safe and easy to apply, spray or roll-on application
- View More Details
How to Get It
Frequently Bought Together
Price:
$25275
Product Overview
RadonSeal Deep Penetrating Concrete Sealer is formulated to permanently seal, strengthen and protect, poured concrete, concrete blocks and cinder blocks. RadonSeal penetrates up to 4 in. into the concrete, to block vapor transmission, water seepage and radon gas. Use RadonSeal Plus on indoor concrete older than 20 years, indoor concrete older than 2 years, or concrete with a history of water seepage. Ideal for basements where humidity and/or water seepage is a concern. Use on concrete slabs, garage floors, foundation walls, parking structures, warehouses and factory floors. Prevents efflorescence, mold growth and pitting and spalling due to freeze-thaw, road salts and chemicals. Safe and easy spray-on application for homeowners or contractors. RadonSeal does not change the surface of the concrete. Treated surfaces remain Suitable for paints, adhesives and overlays. Approximate Coverage - Poured Concrete: 200 sq.ft per gal. Concrete Blocks: 125 sq.ft per gal.
- Permanently reduce vapor transmission, water seepage and radon gas in 1 simple step
- Easy and safe to apply, non-toxic, non-flammable, no odors, zero VOC's
- For use on walls and floors, indoors or outdoors
- Treated surfaces are Suitable for paints, tiles, adhesives and overlays
- Covers up to 200 sq. ft. per gallon
Compare Similar Concrete Sealers
 | |  |  | |
| Brand | RadonSeal | RadonSeal | RadonSeal | LastiSeal |
| Name | 5 Gal. Standard Deep Penetrating Concrete Sealer | 5 Gal. Plus Penetrating Concrete Sealer | Plus 5 Gal. Deep Penetrating Concrete Sealer for Foundations and Basement Floors | 5 Gal. Penetrating Waterproofing Brick Paver and Concrete Sealer |
| Price | $22989 | $25275 | $25486 | $29724 |
| Ratings | (41) | (32) | (74) | (45) |
| Container Size | 5 Gallon | 5 Gallon | 5 Gallon | 5 Gallon |
| Transparency | Clear | Clear | Clear | Transparent |
| Surface Location | Basement Floor,Basement Wall,Driveway,Exterior Wall,Garage Floor,Garage Wall,Patio | Basement Floor,Basement Wall,Driveway,Exterior Wall,Garage Floor,Garage Wall,Patio,Pool Deck | Basement Floor,Basement Wall,Driveway,Exterior Wall,Garage Floor,Garage Wall,Patio | Basement Floor,Basement Wall,Driveway,Exterior Wall,Garage Floor,Patio,Pavers,Pavers |
| Paint/Stain Features | Chemical Resistant,Densifier,Dries Clear,Inverted spray ability,Moisture Resistant,UV/Fade Resistant,UV/Fade Resistant,Washable,Waterproof | Abrasion Resistant,Any Angle Spray,Chemical Resistant,Densifier,Dries Clear,Driveable Surface,Durable,Fast Drying,High Foot Traffic,Low Odor | Abrasion Resistant,Algae Resistant,Any Angle Spray,Chemical Resistant,Densifier,Dries Clear,Driveable Surface,Durable,Fast Drying,High Foot Traffic,Inverted spray ability,Low Odor | Abrasion Resistant,Algae Resistant,Chemical Resistant,Dries Clear,Driveable Surface,Durable,High Foot Traffic,Low Odor |
| Base Material | Water Based | Water Based | Other | Water Based |
| Stain & Sealer In One | No | No | No | No |
| Substrate/Surface Usage Type | Concrete | Concrete | Brick,Concrete,Stone | Brick,Concrete,Plaster,Stucco |
| Coverage Area (sq. ft.) | 1000 | 1000 | 1000 | 1000 |
| Recommended Number of Coats | 2 | 2 | 2 | 1 |
| Maximum hydrostatic pressure (lb.) | 100 | 150 | 150 | 100 |
| View Product | View Product | View Product | View Product |
Specifications
Dimensions
Container Size
5 Gallon
Coverage Area (sq. ft.)
1000
Details
Application Method
Brush,Pump-up Sprayer,Roller
Base Material
Water Based
Color/Finish
Flat / Matte
Dry To Touch Time (hh:mm)
03:00
Interior/Exterior
Exterior,Interior
Maximum hydrostatic pressure (lb.)
150
Maximum Optimal Temperature (F)
90
Minimum Optimal Temperature (F)
40
Number per Package
1
Paint/Stain Features
Abrasion Resistant,Any Angle Spray,Chemical Resistant,Densifier,Dries Clear,Driveable Surface,Durable,Fast Drying,High Foot Traffic,Low Odor
Paint/Stain/Waterproofer Product Type
Concrete Waterproofer/Sealer
Recommended Number of Coats
2
Returnable
90-Day
Stain & Sealer In One
No
Substrate/Surface Usage Type
Concrete
Surface Location
Basement Floor,Basement Wall,Driveway,Exterior Wall,Garage Floor,Garage Wall,Patio,Pool Deck
Transparency
Clear
Vertical/Horizontal
Vertical / Horizontal
Questions & Answers
Typical questions asked about products:
- Is the product durable?
- Is the product easy to use?
- What are the dimensions of the product?
Customer Reviews
Apr 17, 2020
concreate sealer
Somthing went wrong, followed instrution and it didn’t turn out like what it says, stain still show after the sealed
by
Jan 5, 2018
I monitored my radon levels with an electric radon detector for over a month and it stayed right ...
I monitored my radon levels with an electric radon detector for over a month and it stayed right around 11 for long term and 7 day readings. After following the application steps better than most probably can (I had a very clean floor to begin with) for my entire unfinished basement floor (applying 2 "wet on wet" coats) and filling all cracks after the application, my levels remain at 11. This did absolutely nothing to help with radon levels. I took a risk on buying two buckets so I could do the recommended 2 coats everywhere and it was a bust. Also, it's been 3 weeks since applying the two coats with no change whatsoever in radon levels for the entire 3 weeks.
by
Response from RadonSeal Tech SupportJan 10, 2018
Its quite surprising that after repairing all your cracks and sealing your foundation and slab with RadonSeal, you saw no change to your radon levels. Where else could the radon be entering your basement? Sump pit? Floor drains? I would be interested in talking about your situation in more detail. Please call when you have time to discuss. 800 472 0603
Dan R.
RadonSeal
Dan R.
RadonSeal
Jun 9, 2021
Sprayed easy from sprayer....
Sprayed easy from sprayer.
by
Mar 18, 2021
Did not work. No change to radon level....
Did not work. No change to radon level.
by
Feb 17, 2021
So far, the application appears to have improved the dampness...
So far, the application appears to have improved the dampness situation considerably. However, we have not had any of the heavy rains like we experienced in early January, so the jury is still out for a bit longer until we get more rain and see if the desired waterproofing effect is in fact effective.
by
Jan 15, 2021
Used this product on CMU basement walls and radon avg dropped from 18 to 3.6 in 1 week and has be...
Used this product on CMU basement walls and radon avg dropped from 18 to 3.6 in 1 week and has been consistently staying in the 3's since.
by
Nov 11, 2020
Was an easy product to work with...
Was an easy product to work with
by
Oct 27, 2020
Directions were more complicated the the description, low odor was good. will have to see if it s...
Directions were more complicated the the description, low odor was good.
will have to see if it stops water seeping up through the floor, hopefully it will.
by
Oct 10, 2020
by
Oct 7, 2020
Hard to tell. I saw white powder residue ......
Hard to tell. I saw white powder residue ... going to water seal over in white
by
Related Products
Explore More on homedepot.com
Cleaning
Outdoor Living
What's in Season
