Best Water Sealer For Basement In December 2024

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Looking for some of the Best Water Sealer For Basement? As you may know, there are dozens of similar products out there and some come with vastly different price tags. Let us help you out here – we have handpicked for you the Best Water Sealer For Basement.

To help you in your search, we have completed this list of the Best Water Sealer For Basement.

Top Rated Best Water Sealer For Basement Of 2024

Rank Product Name Score
1
Rust-Oleum 265495 LeakSeal Flexible Rubber Coating Spray, 11 oz, Clear
Rust-Oleum 265495 LeakSeal Flexible Rubber Coating Spray, 11 oz, Clear
9.7
2
Drylok 27512 Latex Water Proofer, 1 Quart, White
Drylok 27512 Latex Water Proofer, 1 Quart, White
9.5
3
Siloxa-Tek 8500 Ready to Use - 1 Gallon Penetrating Concrete Sealer, Water
Siloxa-Tek 8500 Ready to Use - 1 Gallon Penetrating Concrete Sealer, Water
9.1
4
Liquid Rubber Foundation and Basement Sealant - Indoor & Outdoor Use - Easy
Liquid Rubber Foundation and Basement Sealant - Indoor & Outdoor Use - Easy
8.8
5
RadonSeal Standard – Deep Penetrating Concrete Sealer (2.5-gal) | Basement Waterproofing & Radon
RadonSeal Standard – Deep Penetrating Concrete Sealer (2.5-gal) | Basement Waterproofing & Radon
8.6
6
Liquid Rubber Waterproof Sealant - Indoor & Outdoor Coating - Easy to Apply
Liquid Rubber Waterproof Sealant - Indoor & Outdoor Coating - Easy to Apply
8.3
7
10' Fast Set Concrete Foundation Crack Repair Kit-Polyurethane Foam Stops Water from Leaking
10' Fast Set Concrete Foundation Crack Repair Kit-Polyurethane Foam Stops Water from Leaking
8.1
8
RadonSeal Plus Deep-Penetrating Concrete Sealer, Basement Waterproofing & Radon Mitigation in One |
RadonSeal Plus Deep-Penetrating Concrete Sealer, Basement Waterproofing & Radon Mitigation in One |
7.8
9
DIY Concrete Foundation Crack Repair Kit - Polyurethane Foam - 1/16" to 1/2"
DIY Concrete Foundation Crack Repair Kit - Polyurethane Foam - 1/16" to 1/2"
7.5
10
5-Gal. SX5000 WB DOT Approved Water Based Silane Siloxane Concrete Sealer and Masonry
5-Gal. SX5000 WB DOT Approved Water Based Silane Siloxane Concrete Sealer and Masonry
7.2

1. Rust-Oleum 265495 LeakSeal Flexible Rubber Coating Spray, 11 oz, Clear

1
9.7/10 our score

  • Dries to a semi-smooth firm finish
  • Oil-based formula seals leaks and cracks instantly with a flexible rubber coating
  • Can be top-coated with latex or alkyd based paints
  • Can actively build to fill gaps small holes and cracks
  • Exterior/interior use on gutters, roofs, flashing, ductwork, pvc, masonry, concrete and more
  • Prevents water and moisture penetration for ultimate protection

2. Drylok 27512 Latex Water Proofer, 1 Quart, White

2
9.5/10 our score

  • Helps protect against radon gas penetration by reducing vapor transfer
  • Guaranteed to stop water - withstands 10 pounds of hydrostatic pressure (psi), equivalent to a wall of water 22 feet high
  • Breathable film will not trap moisture in the masonry
  • Low-odor formula complies with all current voc requirements
  • Fully transferable 10 year warranty

3. Siloxa-Tek 8500 Ready to Use - 1 Gallon Penetrating Concrete Sealer, Water

3
9.1/10 our score

  • Excellent water beading effect, excellent penetration, easy application with sprayer, roller or brush, no appearance change - dries clear, low vocs
  • Resists deicing salt/chloride damage, freeze thaw damage, spalling, pitting, cracking, mold, mildew, efflorescence
  • Use on driveways, garages, basements, patios, pool decks. covers up to 250 sqaure feet per gallon per coat.
  • An industrial-grade, water-based, silane/siloxane engineered to reduce water and moisture intrusion, while protecting concrete or masonry substrates from chlorides and deicing salts.
  • Reduces water ingress, moisture intrusion and asr

4. Liquid Rubber Foundation and Basement Sealant - Indoor & Outdoor Use - Easy

4
8.8/10 our score

  • Application - do not apply in wet conditions or within 24 hours of rain. apply to a dry surface, free of dirt, loose flaky paint and coatings, oil, grease, silicone, coal tar or other contaminants. typically cures within 24-48 hours
  • Easy to apply - no mixing required! apply by brush, roller or high quality piston paint sprayer. container can be closed and left over material used later. no pot life or working time like 2 component products
  • Coverage - flat/ponding surface: 50 sq ft/g per coat. apply 3-4 heavy coats to achieve a 60-80 mil. (1.5-2.0mm) membrane. vertical surfaces: 100 sq ft/g per coat. apply 2-3 heavy coats to achieve a 40-60 mil. (1.0-1.5mm) membrane
  • Environmentally friendly - liquid rubber foundation sealant is water based, containing no solvents, voc's or harmful odors. safe for humans and pets alike, can be used indoors and outdoors with no special breathing apparatus
  • Use for - foundations, icf's, basements, shower liners, deck and fence posts, planter boxes, metal, wood, concrete, and more! highly flexible, the final membrane has over 900% elongation

5. RadonSeal Standard – Deep Penetrating Concrete Sealer (2.5-gal) | Basement Waterproofing & Radon

5
8.6/10 our score

  • Money back guarantee
  • User-friendly non-toxic, non-flammable, zero voc's.
  • Permanent no reapplication needed.
  • Easy to apply spray or roll-on application.
  • Penetrates - does not leave a coating. works by absorbing and reacting inside concrete.

6. Liquid Rubber Waterproof Sealant - Indoor & Outdoor Coating - Easy to Apply

6
8.3/10 our score

  • Coverage - vertical surfaces - 1 gallon/30 sq ft (2.8 sq m). 3-4 heavy coats to achieve a 30 mil (0.76 mm) membrane. flat/ponding surfaces - 1 gallon/15 sq ft (1.4 sq m). 4-5 heavy coats to achieve a 60-80 mil (1.5-2 mm) membrane
  • Easy to apply - just like painting! apply by brush or roller. use heavy coats to build up the waterproof membrane. you can close the container and use later if you have left over material
  • Environmentally friendly - liquid rubber waterproof sealant/coating is water based, containing no solvents, voc's or harmful odors. safe for humans and pets alike, can be used indoors and outdoors with no special breathing apparatus
  • Application - do not apply in wet conditions or within 24 hours of rain. apply to a dry surface, free of dirt, loose flaky paint and coatings, oil, grease, silicone, coal tar or other contaminants. typically cures within 24-48 hrs!
  • Use for - flat roofs, metal roofs, sloped roofs, planter boxes, foundations, ponds, sheds, basements, metal, wood, concrete and more

7. 10' Fast Set Concrete Foundation Crack Repair Kit-Polyurethane Foam Stops Water from Leaking

7
8.1/10 our score

  • Same materials our pro customers use
  • Fast curing surface sealer and injection polyurethane foam
  • How-to video included
  • Stops water leaks through concrete foundation cracks
  • Poxy paste tightly bonds to the concrete for a better injection process

8. RadonSeal Plus Deep-Penetrating Concrete Sealer, Basement Waterproofing & Radon Mitigation in One |

8
7.8/10 our score

  • Permanent & paintable no reapplication needed. resistant to hydrostatic water pressure. does not form a surface film. no peeling or fading. leaves surface paintable. great primer for epoxies, tiles, and overlay flooring.
  • Penetrates concrete (up to 4") internally seals the matrix of concrete, blocking the pores and capillaries to prevent water seepage, water vapor, and radon gas. ideal for use on basement floors, interior basement walls, foundation walls, slab-on-grade, indoor and outdoor poured concrete slabs and walls.
  • Eco-friendly & easy to apply formula zero vocs, no odors, no solvents, non-toxic, non-flammable. water-based.
  • Hardens & strengthens concrete helps to protect against and reduce concrete dusting, efflorescence, damage caused by salts, de-icing chemicals, and freeze thaw. does not trap moisture.
  • Commercial-grade backed by a money-back guarantee - trusted since 1997

9. DIY Concrete Foundation Crack Repair Kit - Polyurethane Foam - 1/16" to 1/2"

9
7.5/10 our score

  • Completely filling the main crack and any capillary cracks or cavities.
  • No drilling or special tools required. used with a standard injection gun.
  • Permanently stops and prevents water leaks in concrete cracks. used for wet or dry cracks.
  • Formulated to repair 1/16" wide to 1/2" wide concrete cracks.
  • Low-pressure injection method. quickly expands and cures to form a flexible gasket.

10. 5-Gal. SX5000 WB DOT Approved Water Based Silane Siloxane Concrete Sealer and Masonry

10
7.2/10 our score

  • The armor sx5000 is approved by the department of transportation in several states as a water repellent sealer. not only is it dot approved, but it has been used by the dot in several states to protect roadways and bridges against deterioration caused by freeze thaw cycles, staining, and the growth of mold and mildew.
  • The armor sx5000 is manufactured in the usa! we do not use recycled or imported resins in our formulas.
  • The armor sx5000 will not change the look or color of the substrate, and it will not leave behind a visible surface film. it works entirely below the surface and will maintain the natural unsealed look of the substrate.
  • Water based, breathable, high solids silane siloxane sealer that can be used on interior and exterior, vertical and horizontal concrete, brick, pavers, flagstone, and slate.

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