The Best Basement Sealer -Reviews & Comparison

If you're looking for the best basement sealer on the market, you've come to the right place. After researching many different options, we compiled this list of the 10 best basement sealer. We assessed features, build, functionality, usability, and many more aspects to find the best options.

Knowing what to look for, which types to choose, and a host of other factors go into choosing among the best basement sealer. There’s good news, though: This guide will explain it all. If you're still here because you need a suitable option, we have a decent selection that should cater to every taste and budget, so read on to find which of the basement sealer will be the best choice for you.

The reasons why you should trust us

You can trust us because we are not just another review site. We are a team of tech enthusiasts and experts who have spent months researching the best products on the market. We factor this into our overall star rating for each product and our final verdict on whether or not we recommend it.

Our rating metrics include the following:

  • Functionality
  • Build material
  • Durability
  • Compatibility
  • Ease of use
  • Quality
  • Price-to-value ratio
  • Reliability
  • Brand
  • Safety
  • Customer reviews

Best basement sealer: Our 10 Choices

Comparison of 10 Best basement sealer
Bestseller No. 1
Liquid Rubber Concrete Foundation and Basement Sealant - Indoor & Outdoor Waterproof Coating, Easy to Apply, Black, 5 Gallon
  • 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. Flat/Ponding Surface: 50 sq ft/G per coat
  • 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
  • FOR A BULLETPROOF SYSTEM - Bridge joints, seams, vents, gaps, protrusions…. With Liquid Rubber Seam Tape or Liquid Rubber Geo-Textile where possible movement may occur
  • 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
Bestseller No. 3
RadonSeal Standard – Deep Penetrating Concrete Sealer (5-gal) | Basement Waterproofing & Radon Mitigation Sealer | Seals Concrete Against Water, Water Vapor, and Radon Gas | Permanent Results!
  • PERMANENT – No reapplication needed.
  • EASY TO APPLY – Spray or roll-on application.
  • MONEY BACK GUARANTEE
  • PENETRATES - Does not leave a coating. Works by absorbing and reacting inside concrete.
  • USER-FRIENDLY – Non-toxic, non-flammable, zero VOC's.
Bestseller No. 4
Concrete Sealer – Acrylic Emulsion Formula | Made in USA - Clear or Wet Sealant for Indoor/Outdoor Surfaces - Perfect for Concrete | Driveways | Garages | Basements (1 Gallon)
  • BEST VALUE ON AMAZON: The Essential Values Concrete & Stone Sealer Finish is The Best Concrete Sealer for Protecting and Finishing Driveways, Sidewalks, Garage Floors, Patios, and Other Concrete Surfaces! Not Limited to Outdoors Alone, Safe for Use Indoors: Pavers, Cinder Blocks, Bricks, Chimney's and Fireplaces!
  • IMPRESS YOUR NEIGHBORS: Not like Other Cheap Acrylic Sealers That Do Not Provide a Full Seal! With Essential Values, Concrete & Stone Sealer Finish, Become the Driveway of the Neighborhood for Years to Come While Safe & Eco-Friendly ***Approved by the DOT***. Made from the Markets Highest Quality of Siloxane Ingredients, You Will Not Be Disappointed!
  • PROUDLY MADE IN USA: To Us, Quality Is Everything! That Is Why We Have Engineered, Tested, And Manufactured Our Concrete Sealer Right Here in The USA. If You Are Not Happy with Our Product, NO PROBLEM - Get Your Money Back Guaranteed!
  • KEEPS MOISTURE OUT: Keep Your Driveway Looking New and Protect it and other Concrete & Stone Finishes from Spalling, Degrading, Pitting or Cracking! Protect your Investment and Save More with Your Essential Values Protectant Seal - Designed to Tolerate and Protect Surface from Salts, Ions, Stains, & Freezing and Thawing
  • EASY TO APPLY: Simple to Use with A Beautifully Attractive Clear Finish! Covers up to 1500 SQUARE FOOT for Standard Care! If WET LOOK / HIGH GLOSS Desired, Apply 3 Coats and Allow 1 Hr To Dry Between Coats! ****For Best Results, Surfaces Need to Be Fully Cleaned from Dirt, Dust, Grease, Oil & Efflorescence****
Bestseller No. 5
RadonSeal Plus Deep-Penetrating Concrete Sealer, Basement Waterproofing & Radon Mitigation in One | Seals Concrete Against Water, Vapor, and Radon Gas (5-Gallon)
  • 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.
  • Commercial-Grade Backed by a Money-Back Guarantee - Trusted Since 1997
  • 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.
  • 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.
Bestseller No. 6
L R Liquid Rubber Waterproof Sealant - Multi-Surface Leak Repair Indoor and Outdoor Coating, Water-Based, Easy to Apply, Original Black, 1 Quart
  • 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 product
  • 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
  • FOR A BULLETPROOF SYSTEM - Bridge joints, seams, vents, gaps, protrusions…. With Liquid Rubber Seam Tape or Liquid Rubber Geo-Textile where possible movement may occur
  • 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
Bestseller No. 7
Ames BMX5RG Blue MAX Waterproofer, Regular Use in Interior & Below-Grade Exterior-5 Gallon White-Concrete Sealer, House Paint and More. Liquid Rubber, (Pack of 1), 640 Fl Oz
  • Blue Max Liquid Rubber Waterproofer can be used as a primer on most types of roofs including metal roofs and RV roofs. Use on concrete, wood, metal & more. Brush, roll or spray on vertical or horizontal surfaces.
  • 5 Gallon - Blue Ames Blue Max Liquid Rubber Waterproofer is packaged in a 5 gallon pail. Allow 24 hours between coats.
  • Ames Blue Max is a strong and highly adhesive elastomeric liquid rubber waterproofer with 1200% elongation that resists cracking and peeling. Blue Max is ideal for waterproofing above and below-grade basements and foundations, insulated concrete forms, and underlayment.
  • Blue Max is an elastomeric membrane that expands & contracts 1200% with surface to resist cracking & peeling. Blue Max is a special blend of adhesive, high strength elastomeric liquid rubber for waterproofing concrete, wood, metal and more.
  • Blue Max is non-toxic, eco-friendly, VOC compliant in all 50 states and made in the USA. Ames is Woman Owned and Veteran Founded.
Bestseller No. 8
RadonSeal Plus Deep-Penetrating Concrete Sealer (2.5-Gallon) - Basement Waterproofing & Radon Mitigation Sealer | Seals Concrete Against Water, Vapor, and Radon Gas
  • Penetrates Concrete (up to 4") – Internally seals the matrix of concrete, blocking the micro-pores and capillaries to prevent capillary water seepage, water vapor, efflorescence, and radon gas directly through concrete. Ideal for use on basement floors, interior basement walls, foundation walls, slab-on-grade, indoor and outdoor poured concrete slabs and walls.
  • Commercial-Grade backed by a Money-Back Guarantee - Trusted Concrete Sealer Since 1997
  • ECO-Friendly & Easy to Apply Formula – ZERO VOCs, No fumes or Noxious Odors, No Solvents, Non-Toxic, Non-Flammable. Water-based.
  • Hardens & Strengthens Concrete – Helps to protect and reduce Concrete Dusting, Crazing, Damage Caused by Salts, De-Icing Chemicals, and Freeze Thaw. Breathable, does not trap moisture!
  • Permanent & Paintable – No Reapplication Needed; the seal becomes integral to the concrete itself. Resistant to Hydrostatic Water Pressure. Penetrating sealer that does not form a surface film; no peeling or fading. Leaves surface Paintable.
Bestseller No. 9
Rexoseal 1000 Waterproofing Sealant - Multi-Purpose Indoor & Outdoor Coating Sealant - Foundations & Basements, Flat & Low Slope Roofs, Concrete, Wood & Metal - Black, 1 Gallon
  • Used For Flat & Low Sloped Roofs, Metal Roofs, Asphalt Shingle Roofs, Foundations, Basements, Concrete, Wood, Metal & much more...
  • Multi-Purpose Rubberized Waterproofing Black Sealant used for Interior and Exterior Applications!
  • Coverage of 1 Gallon of Black Rexoseal 1000 is approximately 100 square feet. For added reinforcement use Rexoseal’s Reinforcing Membrane over seams, cracks, large patches and a whole roof. For added protection use Rexoseal 2000 white topcoat.
  • Easily Apply it by Brush, Roller or Industrial Sprayer!
  • Rexoseal 1000 is Extremely Tough & Durable and maintains Flexibility in extreme hot and cold conditions.
Bestseller No. 10
Vital Coat X-440 Penetrating Masonry and Concrete Sealer with Water Repellent - Ready to Use - 5 Gal. Pail
  • It is easy to apply with a sprayer, roller or brush and will preserve the natural look and feel of the substrate.
  • Recommended uses on pool decks, patios, concrete pavers, basements, masonry walls, and walk ways. Covers up to 250 square feet per gallon depending on porosity of substrate
  • Excellent water repellant and water beading effect.
  • Protects concrete and masonry substrates reducing deterioration from spalling and pitting due to exposure of salts and chlorides.
  • Efflorescence and strong alkali resistance

Buying basement sealer: Things to Consider

When looking for a new basement sealer, knowing which one will suit you best can be difficult. But if you consider a few things before making your purchase, it's much easier to narrow down your choices and make an informed decision about what's right for you.

There are many things to consider before you buy a basement sealer. You want to make sure that it's going to work for your needs, that it's affordable and that it's something you can use with ease.

 

Here are some things to keep in mind before buying a new product:

  1. What is the purpose? This may seem like an obvious question, but people often forget about it as they get caught up in the excitement of a new basement sealer. If you're looking for an item that will best suit your needs, then don't buy a product that does nothing but entertain you.
  2. What are other people saying about it? It's always best to check out reviews online before making any purchases so that you know what other people think about basement sealer and whether or not they would recommend them. This can help give you an idea if something is worth buying or not before you spend money on a product that won't work out for you at all!
  3. Is it something I'm going to use often? If there's any question about whether or not you'll use something often enough for it to be worth buying, then wait until later when you're sure how much time, effort, and money.

The following are some more things in detail you should consider before you buy:

Features

The first thing to look at is the features of the basement sealer. You should check out if it has all the features that you need. It is not worth the money if it doesn't have any needed features. So check out all these features before buying basement sealer.

Features can be divided into two categories: core features and secondary features. Core features are the main characteristics of a product, whereas secondary features are additional or extra characteristics that make a product better than others.

Quality

Quality refers to how well-made the basement sealer is and how long it will last before breaking down or malfunctioning. To determine this, check out online reviews by other users who have bought the same item as yours and see whether they're satisfied with their purchase or not. If there are many negative reviews about a basement sealer or brand, then stay away from them because they're probably not worth buying at all!

Cost

Before buying it, you should always consider how much money you will spend on your new best basement sealer. In addition to this, you should also consider what features the product has and whether they will be beneficial for both you and your pet or not. Sometimes, many basement sealer may look similar, but they may vary greatly in terms of cost and quality, so choose wisely when buying something new!

The material used to build it

You should also be aware of what materials are used in the production of the basement sealer, as this will help you to determine whether it’s durable or not. The material used to make the basement sealer can tell you a lot about its quality and durability. This is particularly important if you’re planning on using the basement sealer for a long period or if it will be used frequently. If you’re looking for something that lasts, then you need to consider the material it’s made from.

Brand

It is also a good idea to check out the brand of the basement sealer before making a purchase. Different brands have different quality standards depending on their manufacturing process and overall quality control measures. Best to choose from, brands with good reputations for quality products and excellent customer service.

Warranty and return policy

When buying basement sealer, ensure you know what kind of warranty or return policy the manufacturer or seller offers. A good warranty will give you peace of mind that if something goes wrong with your purchase, you can get it fixed or replaced without any fuss or hassle. Look for companies with solid customer service who will work with you if there are any problems with your purchase to resolve them as quickly as possible without making things difficult for you. Look for companies that offer a return policy so that if you are unsatisfied with the product, you can send it back and get your money back.

 

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