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

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

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

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

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

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

• 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.
• Use on driveways, garages, basements, patios, pool decks. covers up to 250 sqaure feet per gallon per coat.
• Resists deicing salt/chloride damage, freeze thaw damage, spalling, pitting, cracking, mold, mildew, efflorescence
• Reduces water ingress, moisture intrusion and asr
• Excellent water beading effect, excellent penetration, easy application with sprayer, roller or brush, no appearance change - dries clear, low vocs

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

• 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
• 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
• 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
• 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

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

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

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

• 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
• 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
• Use for - flat roofs, metal roofs, sloped roofs, planter boxes, foundations, ponds, sheds, basements, metal, wood, concrete and more
• 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!

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

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

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

• 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.
• Eco-friendly & easy to apply formula zero vocs, no odors, no solvents, non-toxic, non-flammable. water-based.
• 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.
• Commercial-grade backed by a money-back guarantee - trusted since 1997
• 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.

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

• Low-pressure injection method. quickly expands and cures to form a flexible gasket.
• No drilling or special tools required. used with a standard injection gun.
• Completely filling the main crack and any capillary cracks or cavities.
• 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.

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

• 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.
• The armor sx5000 is manufactured in the usa! we do not use recycled or imported resins in our formulas.
• 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 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.