Top 7 Best Basement Waterproofing Paint 2021: The Perfect Sealer for Walls, Floor, Concrete & Stairs

An average homeowner gets its utility space in its basement. It’s common to call it a cellar. But as the basement is located below the ground level, they are often exposed to extra moisture.

As a result, it starts to fall apart, unrolling to different stability issues. Finding the sources of water and sealing them seems tricky at this point. Are you too struggling with a damped and leaking basement?

Then you’re sure to get tempted for a quick remedy. When it comes to effective weapons against water, you will admire giving hydraulic cement a shot.

But if you are on a low budget, going for a lasting solution may cost your means to cross. In such a case, there is one product that can match your water blocking needs.

Yes, your guess aimed at the bull’s eye. It’s the best basement waterproofing paintWe’ve curated the healing dye reviews to fix all your cellar water issues.

Drop all your fears and get deep into the article!

Does Basement Waterproofing Paint Work?

Yes, sure, it works! Paints with waterproof quality make sense in basement issues. Such tints come with a moisture blocking trait. As a result, one coat of color acts as a vapor barrier.

Basement waterproofing sealers carry more paint weights than conventional dyes. Be it water or oil-based. It’s because their genesis holds special additives.

Thus, the target is to form a coated surface that is not permeable for water passage. But to gain the benefits, you need to lock the moisture in the pores caused due to seepage of water.

A vital note! If your floors are in bad shape with cracks or acute water leaks, such paints are not the med to treat it.

What Are The Benefits Of Using A Basement Waterproofing Sealer?

Waterproofing Paint Work

All dream to seek relief from fitful dampness and water drips on the cellar. Well, to add to your insights, let’s reveal the paints for basement waterproofing pros!

1. Waterproofing Paint

Cellar floors are placed over a lot of water pipelines. Thus, you’re sure to find it wet very often.

Painting with water repelling tints can secure your walls and floors with no water leakages. But it works on a damp surface that has held a little moisture trouble, not on a flooding basement.

2. Preventing Diffusion of Water

If you look at the concrete basements, you’ll find them porous. Owing to diffusion, you’re sure to discover water leakage.

Using water-proofing stains on the floors and walls, you tend to fill all the pores. It prevents the causes of emerging vapors. Hence, you’re with dry basement walls.

3. Resistant to Mold and Mildew

Molds and mildews form when you allow your cellar walls to get very moist. But the plus point of using water sealing paints for basement walls is that it interrupts the act to get damp.

As a result, no exposure means no molds or fungi formation. Hence your floors and walls remain shielded.

4. Increasing the Longevity of Your Walls

Consistent leakages turn your concrete walls weak. Thus, in no time, it collapses. Time for good news!

Other than internal leaks, water sealant paints can handle all seepages. In this way, it keeps your basement wall coating dry and ensures healthy, firm protection for a lifetime.

Best Basement Waterproofing Paint 2021

1. Liquid Rubber Foundation and Basement Sealant

Liquid Rubber Foundation and Basement Sealant

For the last two decades, Liquid Rubber has secured the top as the paint brand. Its sealant can answer if waterproofing paints a good basement waterproofing material or not. Let’s view it!

Higher Flexibility

The sealant forms a tough membrane that can elongate 900%. With its elongation, you won’t find any minor adhesion issues. It’s a quick fix to cure taring and hairline cracks.


You won’t have any application issues. It’s because the paint comes with a water-based solution. Well, it’s thin enough, unlike oil-based paint. So, paint your wet basement walls at ease.

Bullet Proofing

It makes sure that no water drips any further from your walls or floors. But apart from that, it’s capable of acting as a bulletproof system. You can use it on bridge joints, vents, seams, and gaps.


  • Not flammable at all
  • Seals moisture allowing no molding or leaks
  • Adheres creating 900% flexible membrane
  • Water-based, so it doesn’t require thinning
  • Each gallon covers up to 50 sq ft per coat


  • Not suitable for long-term UV exposure use


If your target is to build a waterproof interior, exterior, or both, its coverage can help. It’s totally eco-friendly with no VOC.

2. Rubberseal Liquid Rubber Waterproofing and Protective Coating

Rubberseal Liquid Rubber Waterproofing and Protective Coating

You’re sure to find water pooling around the basement windows, walls, and floors. But applying a protective coat of Rubberseal Liquid Rubber sealant works as a magical fixation. It features:

Spread Rate

Sealing may seem a bit tricky when you go for highly thin or thick tints. That’s why it’s thick enough to offer you a better spread rate. You’ll see that at 20 imperial mills, its gallon serves to cover 60 sq. ft.

Resistant to UV

Paints fade away soon when exposed to higher warmth and UV rays. But stay assured, with the enamel formula, it builds a sturdy barrier. Hence, UV can’t harm your long-lasting paint.

Blocks Water

Holes on the surfaces act as the source of basement leakages. Its water-proofing trait seals all the lines and pores. You’ll find it doesn’t allow the cellar to draw moisture. Thus, no molds form.


  • Resists heat damage
  • Retains dye elasticity
  • Repels ponding of water greatly
  • Mildew-proof white water-based paint
  • Low on VOCs


  • You may need more than one heavy coating with more time to dry


You’ll agree that its premium quality material makes it the best sealant for basement walls. It also takes massive care of your safety.

3. KILZ Interior/Exterior Basement and Masonry Waterproofing Paint

KILZ Basement and Masonry Waterproofing Paint

KILZ basement wall sealer is a quality paint winning ten years of users’ trust. Even you’re sure to be satisfied with its traits that help and halt water infiltration.


To heal your draining cellar, the basement paint uses nanotech. Thus, it seals large to big streaks along cracks and pores. Hence, the coat of paint lasts longer with zero leaks.

Dry Time

You’ll earn the optimal painting result with at least two coats. It dries fast in 60 minutes. After 4 hours, the cellar was easily ready for the last coating.

Ease of Use

It offers three ways to take care of your preferences. Go for a nap roller of 1/2-3/4 inches or nylon brushes of 4 inches. If you are a pro, it gives your spray use acceptance too.


  • Resistant to alkali
  • Covers 75-125 sq ft per gallon
  • Repels water up to 12 PSI
  • Easy to clean using soapy water
  • Cures for recoating in 4 hours


  • A little tough to expect its sealing trait on active water leak areas


KILZ doesn’t limit its range of utility. Get ready to apply it on pre-prepped masonry walls, cinder, stucco, blocks, and bricks.

4. Drylok 28613 Extreme Latex Masonry Waterproofer

Drylok 28613 Extreme Latex Masonry Waterproofer

As a nature lover, your eyes are sure to set on a paint trading off between eco-friendly and water sealing. Drylok is a green wise certified latex paint to realize your goals. Let’s find how it does so!

Hydrostatic Pressure

When cellars have to bear a lot of water pressure per pound, it’s sure to collapse. That’s why the paint allows your base to endure up to 15 PSI as a great blessing.

Low Vapor Transfer

You must have found vapor diffusing in your base cells, which adds residual water on the surface. Well, the paint serves to save your walls from radon gas diffusion with no transfer. Good news!

Mildew Resistant

The trusted product hands you over the painted surfaces that lock extra water and moisture in no time. Hence, it doesn’t let the basement collect mildew.


  • Fully transferable
  • Low odor formula
  • Easy to bond and adhere to any surface
  • Penetrates and seals the pores
  • Waterproof paint with a balanced thickness 


  • It dries a little slower, taking overnight


Its well-adjusted consistency makes it easy to spread and seal surfaces from water spills. But stay aware of its little strong odor.

5. AMES BWRF5 Water Base High Strength Elastomeric Liquid Rubber 

AMES BWRF5 Water Base High Strength Elastomeric Liquid Rubber

Original basement walls, when start showering owing to dampness, it turns into an aching sight. But why worry when AMES elastomeric paint can give you the cure. Its traits can clear all your doubts!


When looking for a basement sealer paint, it’s crucial to justify how much it can resist damage. This paint can have a solar reflection that mirrors back up to 98% of the sunlight. Hence, your color stays fit to block water for years.


Due to the elasticity, your paint can expand and shrink. That’s why it gives you the ability to elongate up to 700%. Thus, it’s easy to mix, spread and coat.


With a permeability rate of 10 mils per minute, each coat is super flexible. Being soluble in water, the stain lasts against molds. You can let it endure the pressure up to 2500 PSI.


  • Ready to use with no mixing needed
  • Safe to use with no petroleum or toxins
  • Permeability rating 0.016
  • Each gallon coats 100 sq. ft.
  • Durable coating for insulated concretes


  • It may turn lengthy to dry depending on the humidity


It’s an elastomeric paint specially designed to waterproof below-grade foundations and basement. You can fill clefts too!

6. INSL-X WaterBlock Acrylic Masonry Waterproofer Paint

INSL-X WaterBlock Acrylic Masonry Waterproofer Paint

Is water dripping down your cellar? It’s time to block the seepage with the INSL-X Masonry paint. You can keep your basement walls dry all the time. Let’s move ahead!

Alkali Resistance

Alkali is the foe that ruins the glam touch of paint. It can even ruin your dye’s water-resistive trait. Thus, to keep your basement content safe, the color can tolerate a rough pH high up to 13.


If your cellar grows mildew or attaches to a fungi attack, you would find it rotting. To end such loss issues, the best basement waterproofing paint adds a coat of protection. Thus, it lasts longer.

Pressure Endurance

As the cellar is below the water pipes, when it exceeds the pressure, you find the movement of water in the form of drips. But this paint alone can withstand a hydrops force of 12 PSI.


  • No surface pre-wetting needed
  • Fast to apply and dry
  • Endures a pH up to 13
  • Contains to inhibit mildew growth
  • Offers quality coverage


  • The texture of the paint is a bit annoying with odor


You’re sure to love the convenience it puts in terms of use. Be it a wet or dry surface. It gives you the flexibility to apply on any bare wall.

7. Jetcoat Farm Pride Waterproof Exterior Paint

Jetcoat Farm Pride Waterproof Exterior Paint

If your eyes are on a leading brand of exterior paint, you’re on the right track. To your blow, Jetcoat Farm Pride, with 50 years+ expertise, comes with a quality waterproof paint. Let’s learn more!


It comes with an acrylic formula, which ensures that your paint stays safe from fading and peeling. Be it any harsh climate. It saves your basement surfaces from water leaks.


You’ll not disappoint at the one-coat coverage this paint has to offer. If you take its one gallon, you can paint up to 100 square feet on a clinch with subsequent coats.

Versatile Use

Its versatile formula allows you to go for multiple uses. Apart from water-blocking the cellar floor, you can enhance farm roofs, barns, fences, foundations, grain bins, and silos.


  • Easy to apply with spray or brush or roller
  • Offers dry finish
  • Can withstand weathering
  • Soap plus water for effortless cleaning
  • Inhibits UV rays to enter


  • Overdose and coatings may add efflorescence to the floor


It’ll help if you stick to its instructions as the manufacturer states. Make sure to note down the temperature at a minimum level of 60 ºF when you apply.

Things to Consider Before Buying Best Basement Waterproofing Paint

Basement Waterproofing Sealer

When choosing the best paint to seal basement walls, specific points ask for your inspection. Otherwise, balked painting effects may overshadow all your repairing projects.

Let’s make your paint task a little more convincing, bagging you before buying criteria!

1. Formula of Paint

If you’re specific about which is your choice for paint formula, it will help your decision-making. You’ll find three types of color composition in terms of the formula:

  • Water-based
  • Latex
  • Oil-based

Well, water-based colors always stay on toes to cater to a high range of coverage. It’s relatively thin in texture. Hence, you won’t figure any difficulty while applying. But their water-resistive traits are on the tip of doubts.

On the other hand are latex and oil-soluble paints. Being thick, they always deliver a higher degree of the shield. So, they bring more resistive layers against the basement showering with water drops. But some find it a bit tricky to handle its consistency.

2. Safety

You’re sure to know that paints often come with irritating odors and fumes. As a result, the act of applying coats of stain chokes you to death.

Such trait consisting paints can never outstand to serve as the moisture blocking paint. They bring high amounts of VOCs to harm your health as well as the ecology.

That’s why as a wise chooser, always make sure your paint option lacks odor and holds a minimum level of volatile organic fumes and compounds.

3. Versatility

All homeowners want to turn their basement into a water-proof surface. But who would like to put money on a product that serves a single motive?

So, it’s better to invest in a quality paint container that serves multi-purposes. You can pick the basement waterproofing paints that effectively work on wood, concrete, stucco, metal, trims, sidings, ceilings, and rooftops too.

If you don’t mind bagging extra features, look what else the tints can give. Filling the crevices would act as the cherry on the top.

4. Dry Time

If you previously had poor basement waterproofing, you are sure to have no idea about the paint used for such cases. But let us give you highlights of its drying time.

When compared to other paints, such stains take a little longer to dry. Under a humid condition, it may even take 24 hours of overnight drying.

But nowadays, a few techs are used to trim down the time. For such reasons, it may dry and be ready to touch in 2 hours. With the rest of four hours more, you can give it the second touch and cure thoroughly.

It all depends on the temperature, humidity, and a bit on your luck. However, the time to dry should never cross the 24 hours deadline.

5. Highly Flexible

When waterproofing basement walls from insideyou may notice white powdery substance and pores. They tend to extend, forming clefts and fine lines. You may even get to see water bubbles, the worst case!

So, to treat all such issues, your walls and floors demand a highly elastic paint. As a result, the color can quickly expand or shrink as per your repairing needs.

Thus, filling up crevices, holes, and seepages turn into an easy task. You won’t have to add any extra tooling efforts!

6. Easy to Apply

Be it any even or uneven surface. Waterproof basement paint comes with a suitable thickness that is easy to handle. It offers all users to equip any of their fav tools to apply the paint coat.

As a beginner, you may better opt for rollers or brushes. They support your painting task with small areas. For uneven surfaces, you can hand on a rough surface roller.

For experts like you, an airless spray with a thin tip speaks as the best option. Large scale projects gain a better finishing in less time with sprayers.

7. Coverage

With broad coverage, the task of painting becomes pain and time-saving at the same time. Most water-proofing tints can cover a minimum basement area of 100 square feet.

Some may offer more while others are less. But if your cellar owns an ample space, always make sure that one whole can of paint can work out the entire room.

FAQ To Ask

1. How To Apply Waterproofing Paint In Your Basement?

It’s vital to go stepwise to apply such paints on the base walls or floors.

First of all, store the paint after you’re done picking up the stain right for your cellar. It’s better to fill it in a bucket keeping at a safe distance. Make sure it’s in a humid-free zone with the fitting temperature.

You are moving to the second step. Check if your walls are painted before hand or not. Scrape off the old layer of the tint to get a flat finish. Next, start with your brush and paint.

Take it down, covering all the nooks and edges. Hence, you fix a bar in the basement. Now, it is better to take spray paint if you are aware of how to use it.

Voila! Your wall paint plus waterproof film has met its final stage. Let it dry and equip for the second or final coating.

2. Can You Waterproof Painted Basement Walls?

Whether you are waterproofing basement walls from outside or inside, it’s always safer to remove the earlier painted layers.

Otherwise, the drawbacks of that old paint may deteriorate the leakage issue further. Peel that pre-painted coat, and then you can even opt for a premium quality sealant.

This way, your new paint will get the scope to adhere firmly and last longer!

3. How Long Does Waterproofing Paint Last?

All general paint that serves the prime aim to lock moisture and turn the surface waterproof lasts up to ten years with proper use.

However, some factors may impact the effect to a great extent. Such as:

  • Outside temperature
  • Harsh climate and weather
  • Air level of humidity
  • Formation of molds
  • Moisture in the atmosphere

Give all these traits a look. But some points may not favor your control.

4. How Many Coatings Do Waterproofing Paints Need?

Well, it depends on the claims your paint brands make. But to be on the safest side, it is always advisable to go for no less than two coats.

A single coat does not support the basement floor waterproofing paint to retain its water-blocking ability. As a result, after 1-2 years of application, you may start noticing leaks once again.

However, two coats can make it waterproof if it is a paint with a little thick consistency. It may even need a bit more time to dry and shine.

But some paints ask you to make 3-4 layers of colors to accomplish the objective.

5. What To Use For Waterproof Basement Walls?

In order to protect your damp foundation walls from dripping water, it is vital to make them waterproof. For this purpose, you can opt for hydraulic cement.

It not only serves to block water but also cures cracks and leaks. But you may find it a bit costly to fit your budget range.

If you’re on a short budget and wandering for a shortcut, we would suggest you get at least two layers of best waterproofing paint for concrete walls and floors.

Some prefer the latex acrylic water-resistant paints method to get the max benefit.

6. How To Seal Basement Walls From Water?

For exterior walls, we would recommend using a cement based sealant. Such sealants give a concrete filling to the pore as they harden over time. And they absorb the dampness too.

First, find out all the pores and clefts or fine lines in your basement. Wipe it out to absorb all its moisture near the walls, floors, windows, and doors.

Next and finally, watertight the roots of leaks with the best basement wall paint with water sealing property.

Final Verdict

Damped foundation turns into a quick eyesore. That’s why you are bound to worry and start looking for a solution. But your puzzles over with our waterproof paint reviews.

They seal your walls and floors, locking moisture and leaks. It boosts your basement insurance policy. So what’s halting your move?

It’s high time to fill your hands with the best basement waterproofing paint and stay tension-free for at least a decade. Safe painting on your way!

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