20 Best Foundation Sealer [2024]

Are you looking for the best foundation sealer ? Based on expert reviews, we ranked them. We've listed our top-ranked picks, including the top-selling foundation sealer .

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# Preview Product
1 Liquid Rubber Concrete Foundation and Basement Sealant - Indoor & Outdoor Waterproof Coating, Easy... Liquid Rubber Concrete Foundation and Basement Sealant - Indoor & Outdoor Waterproof Coating,...
2 RadonSeal Concrete Foundation Crack Repair Kit (10 ft) - The Homeowner's Solution to Fixing Basement... RadonSeal Concrete Foundation Crack Repair Kit (10 ft) - The Homeowner's Solution to Fixing...
3 5-Gal. SX5000 DOT Approved Solvent Based Silane Siloxane Penetrating Concrete Sealer, Brick Sealer,... 5-Gal. SX5000 DOT Approved Solvent Based Silane Siloxane Penetrating Concrete Sealer, Brick...
4 5-Gal. SX5000 WB DOT Approved Water Based Silane Siloxane Penetrating Concrete Sealer, Brick Sealer,... 5-Gal. SX5000 WB DOT Approved Water Based Silane Siloxane Penetrating Concrete Sealer, Brick...
5 Liquid Rubber Waterproof Sealant - Multi-Surface Leak Repair Indoor and Outdoor Coating,... Liquid Rubber Waterproof Sealant - Multi-Surface Leak Repair Indoor and Outdoor Coating,...
6 5 GAL Armor AR500 High Gloss Solvent Based Acrylic Concrete Sealer and Paver Sealer 5 GAL Armor AR500 High Gloss Solvent Based Acrylic Concrete Sealer and Paver Sealer
7 40′ Contractor Polyurethane Foundation Crack Repair Kit-Seal and Stop Water Leaks Through Concrete... 40′ Contractor Polyurethane Foundation Crack Repair Kit-Seal and Stop Water Leaks Through...
8 5 GAL Armor AR350 Solvent Based Acrylic Wet Look Concrete Sealer and Paver Sealer 5 GAL Armor AR350 Solvent Based Acrylic Wet Look Concrete Sealer and Paver Sealer
9 Armor AR350 Wet Look Concrete Sealer and Paver Sealer with Low Gloss Finish (1 GAL) Armor AR350 Wet Look Concrete Sealer and Paver Sealer with Low Gloss Finish (1 GAL)
10 RadonSeal DIY Concrete Foundation Crack Repair Kit (20-ft) - The Homeowner's Solution to Fixing... RadonSeal DIY Concrete Foundation Crack Repair Kit (20-ft) - The Homeowner's Solution to Fixing...
11 Armor WL550 Matte Wet Look Enhancer Sealer Concrete, Brick, Pavers, Stone, and Slate Armor WL550 Matte Wet Look Enhancer Sealer Concrete, Brick, Pavers, Stone, and Slate
12 RadonSeal PRO Foundation Crack Injection Toolkit (30 ft) – The Professional Concrete Crack Repair... RadonSeal PRO Foundation Crack Injection Toolkit (30 ft) – The Professional Concrete Crack...
13 20' Fast Set Concrete Foundation Crack Leak Repair Kit, Stop Leaks in Basement Walls 20' Fast Set Concrete Foundation Crack Leak Repair Kit, Stop Leaks in Basement Walls
14 RadonSeal Plus Deep-Penetrating Concrete Sealer, Basement Waterproofing & Radon Mitigation in One |... RadonSeal Plus Deep-Penetrating Concrete Sealer, Basement Waterproofing & Radon Mitigation in One...
15 DIY Concrete Foundation Crack Repair Kit - Polyurethane Foam - Hairline to 1/16' Wide Cracks -... DIY Concrete Foundation Crack Repair Kit - Polyurethane Foam - Hairline to 1/16" Wide Cracks -...
16 5 GAL Armor SC25 Penetrating Concrete Sealer and Water Repellent Salt Guard 5 GAL Armor SC25 Penetrating Concrete Sealer and Water Repellent Salt Guard
17 10' Fast Set Concrete Foundation Crack Repair Kit-Polyurethane Foam Stops Water from Leaking Through... 10' Fast Set Concrete Foundation Crack Repair Kit-Polyurethane Foam Stops Water from Leaking...
18 1-Gal. L3000 Concentrated Water-Based Lithium Silicate Densifier, Hardener, and Sealer for Concrete... 1-Gal. L3000 Concentrated Water-Based Lithium Silicate Densifier, Hardener, and Sealer for...
19 Kustom DTS Foundation Black Surfacer Sealer Kit w/Hardener (Gallon) Kustom DTS Foundation Black Surfacer Sealer Kit w/Hardener (Gallon)
20 30' Epoxy Contractor Foundation Crack Repair Kit -Repairs up to 30’ of Concrete Foundation Crack... 30' Epoxy Contractor Foundation Crack Repair Kit -Repairs up to 30’ of Concrete Foundation...
SaleBestseller No. 1
Liquid Rubber Concrete Foundation and Basement Sealant - Indoor & Outdoor Waterproof Coating, Easy...
  • PROTECTIVE FINISH FOR - Foundations, ICF's, Basements, Shower Liners, Deck and Fence Posts, Planter Boxes, Metal, Wood, Concrete and more
  • HIGHLY FLEXIBLE - Sealant final membrane has over 900% elongation in the sealing material preventing adhesion failure causing cracks and taring....
  • 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...
  • ENVIRONMENTALLY FRIENDLY - Liquid Rubber Foundation Sealant is water based, containing no solvents, VOC's or harmful odors. Safe for humans and pets...
  • FOR A BULLETPROOF SYSTEM - Bridge joints, seams, vents, gaps, protrusions…. With Liquid Rubber Seam Tape or Liquid Rubber Geo-Textile where possible...
Bestseller No. 2
RadonSeal Concrete Foundation Crack Repair Kit (10 ft) - The Homeowner's Solution to Fixing Basement...
  • NO DRILLING REQUIRED – The low-pressure injection method eliminates the need for drilling.
  • HAIRLINE CRACKS – Low-viscosity, 2-component, injection urethane is suitable for the repair of hairline cracks.
  • NO NEED TO EXCAVATE – Save serious money by repairing the crack from the inside.
  • NO SPECIAL TOOLS REQUIRED – Use a standard caulking gun to inject.
  • PERMANENT - Prevents water seepage permanently! Imperious to water vapor, soil gases, and even radon.
Bestseller No. 3
5-Gal. SX5000 DOT Approved Solvent Based Silane Siloxane Penetrating Concrete Sealer, Brick Sealer,...
  • Solvent based, breathable, low VOC, high solids Silane Siloxane sealer that can be used on unsealed interior and exterior, vertical and horizontal...
  • Approved by the Department of Transportation in several states as a penetrating concrete sealer for use on roadways and bridgedecks to reduce damage...
  • Will maintain the natural, unsealed look and feel of the substrate. Won't leave behind a slippery surface film, won't change the look or color.
  • Easy to apply with an acetone/solvent resistant pump sprayer! Two back-to-back coats will yield up to 7-10 years of protection! Manufactured in the...
  • This product ships FedEx HAZMAT. A DIRECT signature is required for delivery. If the DIRECT purchaser is not able to provide a signature for delivery...
Bestseller No. 4
5-Gal. SX5000 WB DOT Approved Water Based Silane Siloxane Penetrating Concrete Sealer, Brick Sealer,...
  • Water based, breathable, high solids Silane Siloxane sealer that can be used on interior and exterior, vertical and horizontal concrete, brick, and...
  • Approved by the DOT as a water repellent sealer and can provide up to 10 years of performance.
  • Will maintain the natural, unsealed look and feel of the substrate.
  • Will reduce damage caused by snow and ice, road salts, mold and mildew, and staining.
Bestseller No. 5
Liquid Rubber Waterproof Sealant - Multi-Surface Leak Repair Indoor and Outdoor Coating,...
  • PROTECTIVE FINISH FOR - Flat roofs, metal roofs, sloped roofs, planter boxes, foundations, sheds, basements, metal, wood, concrete and more
  • HIGHLY FLEXIBLE & DURABLE - Final membrane has over 1000% elongation preventing adhesion failure, and is UV Stable stopping the sun from degrading the...
  • 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...
  • ENVIRONMENTALLY FRIENDLY - Liquid Rubber Waterproof Sealant/Coating is water based, containing no solvents, VOC's or harmful odors. Safe for humans...
  • FOR A BULLETPROOF SYSTEM - Bridge joints, seams, vents, gaps, protrusions…. With Liquid Rubber Seam Tape or Liquid Rubber Geo-Textile where possible...
Bestseller No. 6
5 GAL Armor AR500 High Gloss Solvent Based Acrylic Concrete Sealer and Paver Sealer
  • Penetrating high solids, breathable solvent based acrylic coating with unmatched bonding characteristics.
  • Durable, long lasting. Stands up to abrasion, UV rays, hot tire pick up, hot and cold temperatures.
  • Long lasting high gloss finish provides up to 2-5 years of life on a two coat application before the need for a recoat. Will bring out color in dull...
  • Can be used on poured concrete, stamped concrete, concrete pavers, aggregate, and more.
  • Can be used on unsealed surfaces, or on surfaces previously sealed with a solvent based acrylic.
Bestseller No. 7
40′ Contractor Polyurethane Foundation Crack Repair Kit-Seal and Stop Water Leaks Through Concrete...
  • Stop Leaks in up to 40' of Concrete Basement Wall Cracks
  • Fast Curing Poxy Paste Surface Sealer and Port Adhesive Bonds tightly to Concrete
  • Works on Brick Patterned Concrete Walls Also
  • Hydra Stop 300 Hydrophobic Polyurethane Foam Fills the Crack
Bestseller No. 8
5 GAL Armor AR350 Solvent Based Acrylic Wet Look Concrete Sealer and Paver Sealer
  • The Armor AR350 is a breathable, non-yellowing solvent based acrylic that will darken concrete and pavers to make them look wet, and provide a long...
  • The Armor AR350 is manufactured in the US and made from non-recycled resins.
  • The Armor AR350 is self-priming and can be applied to unsealed concrete and paver surfaces, as well as surfaces previously sealed with a solvent based...
  • The Armor AR350 will help to reduce damage and deterioration caused by surface abrasion such as dustring, cracking, spalling, and pitting.
  • The Armor AR350 can last up to 1-3 years on exterior surfaces and up to 3-7 years on interior surfaces before the need for a recoat.
Bestseller No. 9
Armor AR350 Wet Look Concrete Sealer and Paver Sealer with Low Gloss Finish (1 GAL)
  • Penetrating high solids acrylic coating with unmatched bonding characteristics.
  • Durable, long lasting, professional grade solvent based acrylic offering superior performance abilities.
  • Satin sheen wet look finsih. Will bring out color in dulled substrates.
  • Can be used on poured concrete, stamped concrete, concrete pavers.
  • 1 gallon will cover up to 100 square feet in two coats.
Bestseller No. 10
RadonSeal DIY Concrete Foundation Crack Repair Kit (20-ft) - The Homeowner's Solution to Fixing...
  • NO DRILLING REQUIRED – The low-pressure injection method eliminates the need for drilling.
  • HAIRLINE CRACKS – Low viscosity urethane is suitable even for the repair of hairline cracks.
  • NO NEED TO EXCAVATE – Save serious money by repairing the crack from the inside.
  • NO SPECIAL TOOLS REQUIRED – Use a standard caulking gun to inject.
  • PERMANENT - Prevents water seepage permanently!
Bestseller No. 11
Armor WL550 Matte Wet Look Enhancer Sealer Concrete, Brick, Pavers, Stone, and Slate
  • Water repellent characteristics help to reduce damage caused by water absorption and freeze-thaw cycles
  • Will last for up to 3-5 years before the need to reseal
  • Direct signature required, all sales final on solvent based sealers.
Bestseller No. 12
RadonSeal PRO Foundation Crack Injection Toolkit (30 ft) – The Professional Concrete Crack Repair...
  • No drilling required - the injection ports are glued right on top of the crack
  • The toolkit includes a professional dual-tube cartridge injection gun
  • No need to measure or guess - dual-cartridge gun ensures precise mixing (1:1) of components
  • Polyurethane injection foam remains flexible allowing for the natural movement of concrete
  • Permanently repair cracks and stop water seepage
Bestseller No. 13
20' Fast Set Concrete Foundation Crack Leak Repair Kit, Stop Leaks in Basement Walls
  • Stops Water From Leaking Through Concrete Cracks
  • Hydra Stop 300 Polyurethane Foam Expands Inside to Crack to Completely Fill It.
  • Works on Concrete Foundations, Brick Patterned Concrete Foundations and Inside Corner Cracks
  • How To Video and Written Instructions Included
  • Poxy Paste Fast Curing Surface Sealer and Port Adhesive Tightly Bonds to Concrete
Bestseller No. 14
RadonSeal Plus Deep-Penetrating Concrete Sealer, Basement Waterproofing & Radon Mitigation in One |...
  • Penetrates Concrete (up to 4") – Internally Seals the Matrix of Concrete, Blocking the Pores and Capillaries to Prevent Water Seepage, Water Vapor,...
  • Hardens & Strengthens Concrete – Helps to Protect Against and Reduce Concrete Dusting, Efflorescence, Damage Caused by Salts, De-Icing Chemicals,...
  • 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...
  • Commercial-Grade Backed by a Money-Back Guarantee - Trusted Since 1997
Bestseller No. 15
DIY Concrete Foundation Crack Repair Kit - Polyurethane Foam - Hairline to 1/16" Wide Cracks -...
  • Permanently Stops and Prevents Water Leaks in Concrete Cracks. Used for Wet or Dry Cracks.
  • Can Be Used For Wet or Dry Cracks.
  • Compression Seal That Remains Flexible.
  • Formulated To Repair Hairline to 1/16" Wide Concrete Cracks.
  • No Drilling Or Special Tools Required.
Bestseller No. 16
5 GAL Armor SC25 Penetrating Concrete Sealer and Water Repellent Salt Guard
  • Excellent professional grade breathable water based Siliconate water repellent sealer for unsealed concrete surfaces.
  • Minimizes damage due to water and salt water from de-icing road salts and salt water pool systems.
  • Reduces cracking, spalling, and pitting caused by water absorption and road salts.
  • Will not change the color of the concrete, will not leave behind a slippery surface film
  • Will provide up to 3-5 years of life before the need to recoat.
Bestseller No. 17
10' Fast Set Concrete Foundation Crack Repair Kit-Polyurethane Foam Stops Water from Leaking Through...
  • Stops Water Leaks Through Concrete Foundation Cracks
  • Fast Curing Surface Sealer and Injection Polyurethane Foam
  • How-To Video Included
  • Same materials our Pro Customers Use
  • Poxy Paste Tightly Bonds to the Concrete for a Better Injection Process
Bestseller No. 18
1-Gal. L3000 Concentrated Water-Based Lithium Silicate Densifier, Hardener, and Sealer for Concrete...
  • Increases strength of concrete up to 45%. Reduces penetration of water, moisture, Radon.
  • Won't change look or color of the concrete. Applied with a sprayer.
  • Penetrates up to 2". Creates Caclium Silicate Hydrate within the pores.
  • Can be used alone or prior to polishing concrete floors. Superior resistance to chemicals.
  • Concentrated. Dilutes with 1 gallon of warm water to cover up to 400-600 FT2 in two coats.
Bestseller No. 20
30' Epoxy Contractor Foundation Crack Repair Kit -Repairs up to 30’ of Concrete Foundation Crack...
  • Applied Technologies has been in business since 1998
  • Meets ASTM C-881 Standard Specification for Epoxy Resin Base Bonding Systems for Concrete
  • 12,000 psi Compressive Strength: 8,000 psi Tensile Strength
  • Full Instructions Included
  • Structurally repairs concrete foundation and wall cracks

Having trouble finding a great foundation sealer ?

This problem is well understood by us because we have gone through the entire foundation sealer research process ourselves, which is why we have put together a comprehensive list of the best foundation sealer s available in the market today.

After hours of searching and using all the models on the market, we have found the best foundation sealer for 2023. See our ranking below!

How Do You Buy The Best Foundation Sealer ?

Do you get stressed out thinking about shopping for a great foundation sealer ? Do doubts keep creeping into your mind?

We understand, because we’ve already gone through the whole process of researching foundation sealer , which is why we have assembled a comprehensive list of the greatest foundation sealer available in the current market. We’ve also come up with a list of questions that you probably have yourself.

John Harvards has done the best we can with our thoughts and recommendations, but it’s still crucial that you do thorough research on your own for foundation sealer that you consider buying. Your questions might include the following:

  • Is it worth buying an foundation sealer ?
  • What benefits are there with buying an foundation sealer ?
  • What factors deserve consideration when shopping for an effective foundation sealer ?
  • Why is it crucial to invest in any foundation sealer , much less the best one?
  • Which foundation sealer are good in the current market?
  • Where can you find information like this about foundation sealer ?

We’re convinced that you likely have far more questions than just these regarding foundation sealer , and the only real way to satisfy your need for knowledge is to get information from as many reputable online sources as you possibly can.

Potential sources can include buying guides for foundation sealer , rating websites, word-of-mouth testimonials, online forums, and product reviews. Thorough and mindful research is crucial to making sure you get your hands on the best-possible foundation sealer . Make sure that you are only using trustworthy and credible websites and sources.

John Harvards provides an foundation sealer buying guide, and the information is totally objective and authentic. We employ both AI and big data in proofreading the collected information.

How did we create this buying guide? We did it using a custom-created selection of algorithms that lets us manifest a top-10 list of the best available foundation sealer currently available on the market.

This technology we use to assemble our list depends on a variety of factors, including but not limited to the following:

  1. Brand Value: Every brand of foundation sealer has a value all its own. Most brands offer some sort of unique selling proposition that’s supposed to bring something different to the table than their competitors.
  2. Features: What bells and whistles matter for an foundation sealer ?
  3. Specifications: How powerful they are can be measured.
  4. Product Value: This simply is how much bang for the buck you get from your foundation sealer .
  5. Customer Ratings: Number ratings grade foundation sealer objectively.
  6. Customer Reviews: Closely related to ratings, these paragraphs give you first-hand and detailed information from real-world users about their foundation sealer .
  7. Product Quality: You don’t always get what you pay for with an foundation sealer , sometimes less, and sometimes more.
  8. Product Reliability: How sturdy and durable an foundation sealer is should be an indication of how long it will work out for you.

John Harvards always remembers that maintaining foundation sealer information to stay current is a top priority, which is why we are constantly updating our websites. Learn more about us using online sources.

If you think that anything we present here regarding foundation sealer is irrelevant, incorrect, misleading, or erroneous, then please let us know promptly!

FAQ:

Q: What is the best basement water sealer?

A: – Our Top Basement Waterproofing Paint Picks – List Of Best Paint For Concrete Walls In Basement. Does Basement Waterproofing Paint Work? … – Best Basement Waterproofing Paint 2023. For the last two decades, Liquid Rubber has secured the top as the paint brand. … – Things to Consider Before Buying Best Basement Waterproofing Paint. … – FAQ To Ask. …

Q: What is the best sealant for basement walls?

A: Dap 37584 Liquid Cement Crack Filler. … PC-Concrete Two-Part Epoxy Adhesive Paste for Crack Repair. … Bluestar Flexible Concrete Crack Filler. … Dalton Latex-ite 35099 PLI-STIX Asphalt and Concrete Crack Filler. … Rust-Oleum EpoxyShield Concrete Patch and Repair. … EZR Hairline Crack Sealer. … Damtite Concrete SuperPatch. … DRYLOK Fast Plug Hydraulic Cement. …

Q: Which grout sealer is the best?

A: Tuff Duck Granite,Grout and Marble Sealer Miracle Sealants Impregnator Penetrating Sealers Floor Guys Grout&Granite Penetrating Sealer Miracle Sealants PLUS QT 511 Porous Plus Sealer Black Diamond Nex-Gen Natural Stone Penetrating Sealer StoneTech Heavy Duty Grout Sealer AFM Safecoat Grout Sealer Aqua Mix Sealer’s Choice Gold

Q: What is the best penetrating concrete sealer?

A: Siloxane concrete sealer – this sealer is less volatile and provides water repellency at a very lower cost. … Penetrating sealer – it protects the concrete by sealing the pores below the surface. … Acrylic concrete sealer – it is great on both interior and exterior surfaces. … Film-forming sealers – this sealer works by forming a barrier on the surface. …

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