Concrete Foundation Paint: Unpacking the Power of Foundation Sealant/Basement Coating

Concrete Foundation Paint: Unpacking the Power of Foundation Sealant/Basement Coating

Your home is not just an asset; it's a sanctuary where you unwind and create memories. Therefore, its strength and longevity are paramount. One of the key aspects that underpin these is a resilient, watertight basement and foundation.

Ensuring these crucial areas remain dry and impermeable can significantly contribute to the overall health of your home. This is where Liquid Rubber’s Foundation Sealant/Basement Coating stages its utility. 

Starting at a competitive price of $59.95, this product promenades a dual proposition of being a potent moisture deterrent and a reliable defender against potential damages the water might inflict.

This review delves into this product's features, application, performance, real-time user experiences, and more to offer a comprehensive understanding of its value proposition.

Liquid Rubber foundation sealant products

Product Overview

Liquid Rubber’s Foundation Sealant/Basement Coating merges performance, safety, and environmental responsibility. It uses a water-based, non-toxic formula devoid of solvents, differentiating it from many other products on the market that rely heavily on harmful solvents. 

The product is ideal for indoor and outdoor use. However, keep in mind this foundation sealant/coating is not designed for areas subject to prolonged UV exposure or surfaces that endure consistent foot traffic.

Easy Cleanup: A water-based formula allows for easy cleanup with just soap and water, minimizing post-application cleanup time.

Product Features

The product brings together the essential elements of versatility, eco-friendliness, and user-friendliness to offer a comprehensive solution for waterproofing needs. Here’s how each feature benefits your home improvement projects:


The wide range of surfaces—from metal and wood to concrete and more—that this sealant can effectively waterproof is one of its most appealing features. It stands ready to protect various areas of your home, including the basement, foundation, shower liners, deck and fence posts, and even planter boxes.


Environmental considerations rank high with this product. The foundation sealant is non-toxic and VOC-free, making it safe for use around your family, pets, and the environment. Its water-based nature allows for easier cleanup and eliminates worries about potentially detrimental chemicals.

User-Friendly Application

Regardless of whether you are a DIY enthusiast or a professional contractor, applying this sealant is easy. It can be brushed, rolled, or sprayed on, providing flexibility to choose the method that best suits your project’s requirements.

Quick Tip: Best apply when it's above 10°C/50°F and dry. Aim for three to four thick coats, letting each dry fully before the next. This secures a stronger, lasting waterproof seal.

Product Variations

Something unique about this basement coating is the variety in its packaging and offerings. Depending on the size and scale of your projects, you can choose from its 1-gallon cans, 5-gallon pails, or 55-gallon drums.

For those facing larger-scale projects like exterior foundation repair, there’s a Foundation Sealant Kit for you. This includes a 5-gallon pail of Foundation Sealant, which covers up to 100 square feet, a roll of 4" x 160' Geo-Textile, and four tubes of White Caulking Sealant & Adhesive.

This comprehensive bundle ensures you have everything you need in one place to effectively seal and protect your foundation, giving you added convenience.

The Liquid Rubber Differentiator

What sets Liquid Rubber’s Foundation Sealant/Basement Coating apart from other waterproofing products on the market?

While there are several sealants to consider, this product's edge lies in its unique combination of versatility, environmental responsibility, and formulation safety. It’s not a solvent-based sealant, which is a significant departure from the norms, promoting safer usage for users.

This water-based solution provides a non-toxic and VOC-free option that enables use in both indoor and outdoor settings—reaffirming its efficacy without undermining user or environmental safety.

Eyes on the Competition

When pitted against comparable waterproofing solutions, Liquid Rubber’s Foundation Sealant/Basement Coating competently holds its ground. There's something uniquely compelling about a product that marries superior performance with environmental conscientiousness.

Seal and Save: Using this sealant can significantly reduce your home’s heating and cooling costs by reducing drafts.

Customer Testimonials

Kevin O'Brien shared his pleasure as he found the solution to his block foundation, while Peter Zahi Tawil lauded the excellent customer service along with the sealant. Contractors also prefer Liquid Rubber for basement waterproofing—find out why here.

These and more real-time experiences of customers who have benefitted from the product are encouraging and indicative of its effectiveness.

“This is an excellent product! Brushed three coats it on my block foundation and covered with dimple board. Totally satisfied!” – Kevin O'Brien

“Great product with excellent service. Product worked great to seal cement around a humid area. Service was also great, received a leaking container, sent pictures to support and they shipped me a replacement. Thank you!” – Peter Zahi Tawil

“this is liquid rubber, in a one-word I haven’t tested it with time yet, but I hope this will help protect the foundation of the garden house” – Olga Bhatt

Pros and Cons

Like any product, the Foundation Sealant/Basement Coating has its strengths and limitations. The table below highlights what the product offers and areas where it may fall short:




Versatile Application

Works on multiple surfaces (metal, wood, concrete)

Not for UV-exposed areas

Environmental Safety

Eco-friendly; no VOCs

Not for areas with foot traffic

Application Flexibility

Easy to apply by brush, roller, or spray

Multiple coats needed for effectiveness

Tips for Successful Use

Proper surface prep work is an integral part of the process of achieving the best and most lasting results. Ensure your surface is free of oil, loose paint, rust, silicone, grease, or other contaminants before applying the sealant.

Remember that the product stays soft and flexible after application. Allow sufficient curing time within the recommended temperature range and without any instances of rain or dew. Initial cure typically happens within 24–48 hours.

Also, note that the Foundation Sealant/Basement Coating shouldn't be combined with colored products, as it may affect the outcome. In the same vein, avoid contact with solvents and solvent-based cleaners, adhesives, and paints.

empty basement with built-in closets and a small window

Frequently Asked Questions

Here are FAQs to address your most pressing questions, helping ensure a successful project.

Can I use acrylic paint over the foundation sealant for my concrete foundation?

Yes, acrylic paint can be applied over the sealant once it has fully cured, offering an additional layer of protection and aesthetics to your concrete foundation. Ensure the first coat of sealant is completely dry to ensure proper adhesion.

Is a concrete sealer necessary before applying foundation paint on foundation walls?

Applying a concrete sealer before foundation paint can help seal the porous surface of the concrete, ensuring a more durable and effective paint job, especially on exterior foundation areas.

How can I prepare my exterior foundation for a protective coating?

Use a pressure washer to thoroughly clean the concrete surfaces, followed by a wire brush to remove any loose material. This ensures the protective coating adheres well to the exterior foundation.

Can I use a paint sprayer to apply Liquid Rubber Foundation Sealant on my house foundation?

You will need to use a high quality piston type of sprayer for the Foundation Sealant as it's a very thick material.

How can I enhance the durability of my paint job on concrete surfaces?

To enhance durability, ensure the concrete surfaces are clean and dry, and use  the Liquid Rubber Multi-Purpose Primer.  

Future Proofing Your Home

Making a sound investment in your home's longevity is a testament to practical forethinking. By choosing Liquid Rubber’s Foundation Sealant/Basement Coating for your waterproofing needs, you're making a decision that's good for your home and the environment.

All these attributes distill down to one simple fact: Liquid Rubber empowers homeowners and professionals alike to address their waterproofing requirements head-on with a practical, reliable, and environmentally responsible solution.

The tangible value brought into homes and projects speaks volumes about why this is an investment worth considering. Step forward with confidence by securing your home with a reliable waterproofing solution that stands up to test time!