20 Best Waterproofing For Concrete Block (2023 Updated)

Ready-to-Use 1 Gallon commercial-strength water repellent requires no pre-mixing. This easy-to-use, environmentally-friendly, spray-on water repellent provides long-lasting protection on most concrete and masonry substrates with little to no change to the surface appearance.

Ideal for concrete, brick, masonry, natural stone, artificial stone, pavers, stucco, split-face block, and more. This product does not harm landscape plantings, is vapor permeable (breathable), dries clear without changing the surface appearance, protects against water damage and de-icing salts, resists mold and mildew growth, and is safe for use around people, pets and plants!.

Old concrete requires a little extra care when maintaining. Get the job done right with the RadonSeal Plus Clear Protectant Concrete Sealer. Specially concentrated for older, more porous concrete, this material will seal up your old foundations, pads, and heavyweight concrete blocks.

This unique sealer will protect your indoor and outdoor concrete against dusting, cracking, freeze-thaw, deicing chemicals, and efflorescence without changing its appearance. Concentrated for older concrete, RadonSeal Plus is recommended for indoor concrete poured up to 20 years ago or outdoor concrete over 2 years old.

The RadonSeal Plus works by absorbing deep into the concrete and sealing pores and capillaries below the surface. Unlike other sealants, this concrete sealer will not leave behind a glossy coating and won’t cause the surface to become slippery.

This factor makes the concrete sealer a great choice for areas your loved ones frequently walk on every day. Whether you’re renovating your basement or hardening an aging sidewalk, RadonSeal Plus will help you craft a firm foundation the first time around.

AQUA-X 11 will give your concrete a long-lasting natural finish while creating a moisture barrier on concrete pavers, block and masonry. With our industry leading coverage rate of up to 600 square feet per gallon, typically one coat required, the product will cover any of your sealing needs and can be easily applied using a sprayer and a roller.

Our water-based formula will ensure no foul smell and provides excellent water repellence while keeping out mold and mildew from the surface for easier maintenance. Our environmentally friendly and low VOC concrete sealer is UV resistant and prevents concrete spalling.

Our unique water-based sealers were inspired due to an unmet need for a high-quality alternative to solvent-based products. Our sealers are very easy to use and are commercial grade. Black Diamond Coatings’ products ensure the highest quality through every step of the way.

Formulated to waterproof above or below grade masonry walls, cinder and concrete blocks, stucco, brick, retaining walls, basement, and foundations. Low Odor. Non-flammable. Resists 10 psi water pressure.

Apply with brush and/or roller. Complies with all current VOC requirements. Passes performance requirements of Fed. Spec. TT-P-1411-A. Covers 75 to 125 sq. ft per gallon depending on surface porosity.

A waterbased, acrylic application designed to protect above ground vertical concrete and masonry surfaces against moisture penetration. The sealer penetrates deep into the pores of concrete, binding sand and cement particles to form a tough, flexible yet breathable film.

It is excellent for binding chalky surfaces to improve paint adhesion on either painted or unpainted substrates. Seal-Krete strengthens mortar joints, reduces efflorescence on brick, and acts as a color rejuvenator on older painted or colored surfaces (such as aged vinyl siding and stucco).

Use Seal-Krete original bonding sealer on vertical surfaces including concrete block, brick, stucco, synthetic stucco, plaster, masonite, drywall, galvanized metal, aluminum siding, adobe, wood fencing, stone, and more.

Ideal for vertical surfaces, apply with low pressure (garden) sprayer, airless sprayer, brush, or roller. Paintable in 2 hours. Can be mixed with latex painttintable. Soap and water clean up. Can be used as a primer under floor coatings.

See package for details. 100 gm per liter.

Features. Indoor and Outdoor. This smooth waterproof paint is perfect for the most demanding conditions. For waterproofing interior exterior above or below grade masonry walls basement walls retaining walls foundations landscape walls cinder blocks concrete blocks bare concrete swimming pools stucco and brick.

Resistance to wind driven rain of 98 mphSpecifications. Color: Bright White. Size: 1 quart. VOC Level: 100 VOC. Coverage Area: 75-100 sq. ft. Base Material: Latex. UV Resistant: Yes. Dimension: 5. 5 H x 9 W x 9 L.

Weight: 11. 4 lbs.

A waterbased, acrylic application designed to protect above ground vertical concrete and masonry surfaces against moisture penetration. The sealer penetrates deep into the pores of concrete, binding sand and cement particles to form a tough, flexible yet breathable film.

It is excellent for binding chalky surfaces to improve paint adhesion on either painted or unpainted substrates. Seal-Krete strengthens mortar joints, reduces efflorescence on brick, and acts as a color rejuvenator on older painted or colored surfaces (such as aged vinyl siding and stucco).

Use Seal-Krete original bonding sealer on vertical surfaces including concrete block, brick, stucco, synthetic stucco, plaster, masonite, drywall, galvanized metal, aluminum siding, adobe, wood fencing, stone, and more.

Ideal for vertical surfaces, apply with low pressure (garden) sprayer, airless sprayer, brush, or roller. Covers 80 to 300 Sq. Ft. per Gal. , depending on surface porosity. Paintable in 2 to 4 hours.

Can be mixed with latex paint/tintable. Soap and water clean up. Can be used as a primer under floor coatings. See package for details. 100 gm per liter.

Thoro Super Thoroseal Masonry Waterproofer is a heavy, cement based, waterproof coating for concrete or masonry. This versatile treatment can be used for interior or exterior coatings. The waterproofing can be used on cinder blocks, concrete, stucco, brick and other hard, porous surfaces.

Super Thoroseal waterproof coating fills and seals pores and voids, to ensure complete protection against water penetration or weather conditions. It can be tinted to create customized colors, adding depth and dimension to concrete floor surfaces.

The waterproof coating for concrete comes in dry powder form; to use, simply add water and mix. Thoro Super Thoroseal Masonry Waterproofer: Size: 11. 8 x 10. 6 x 12. 5. Color: White. Gender: male.

A heavy, cement base, waterproof coating packaged in dry powder form which can be mixed with water and applied with a coarse fibered brush. For use on concrete, stone, brick or block, interior and exterior, above or below grade applications.

Exceptional filling qualities assure complete sealing of masonry. Breathable, prevents build-up of water vapor which causes blistering, flaking and peeling of paint films and other nonbreathing coatings.

Can be painted with 100% acrylic paint. Compatible to concrete and masonry, actually becomes part of the wall. Can be used in cisterns.

LastiSeal5Gal. LastiSealpenetratesupto4in. andfillsthepores, bondsthesubstrateandcuresasahardplasticbelowthesurface. Unlikepaintsorsurfacesealers, LastiSealwillnotchangetheappearanceorfeeloryourbrick, concreteormasonry.

Pouring concrete is quite the task to take on. Get the job done right with the Clear Protectant Concrete Sealer from RadonSeal. This unique sealer will protect your indoor and outdoor concrete against dusting, cracking, freeze-thaw, deicing chemicals, and efflorescence without changing its appearance.

When used before the application of concrete paint, epoxy floor coatings, clear sealants, concrete levelers, floating slabs, wood floors, and adhesive, this sealer will strengthen and waterproof cementitious building materials.

The RadonSeal works by absorbing deep into the concrete and sealing the pores and capillaries of the concrete below the surface. Unlike other sealants, this concrete sealer will not leave behind a glossy coating and won’t cause the surface to become slippery.

This factor makes the concrete sealer a great choice for areas your loved ones frequently walk on every day. Whether you’re creating a new concrete ramp or renovating your driveway, the Clear Protectant Concrete Sealer from RadonSeal will help you craft a firm foundation the first time around.

KILZ Basement & Masonry Waterproofer, is a premium, interior/exterior waterproofer designed for porous concrete and masonry surfaces. This paint is formulated for waterproofing above and below grade basement walls, masonry walls, retaining walls, cinder and concrete blocks, stucco and brick.

This product is ideal for use on above and below grade basement, masonry, garage, and foundation and landscape walls. Use on properly prepared, interior or exterior surfaces. Not for use on floors and walls with active water leaks.

Do not use over oil-or latex-based paint.

Brand Name: Drylok *Sheen: Low Gloss *Color: White *Coating Material: Latex *Product Type: Waterproof Sealer *Container Size: 1 gal. *Coverage Area: 75-125 sq. ft. *VOC Level: Low VOC *UV Resistant: No *Application Method: Brush *Mildew Resistant: Yes *Dry Time: 1 hour * Cleanup: Soap and Water.

WaterGuard Multi-Surface Waterproofing Clear Sealant offers convenience and value. Penetrating, advanced multi-surface sealant protects against water damage and creates a mildew-resistant coating. Perfect for a variety of substrates including concrete, brick, stucco and wood.

Latex Base Drylok Masonry Waterproofer is a low odor, water clean-up formula for waterproofing all interior, exterior, above or below grade masonry walls, cinder and concrete blocks, stucco, brick, retaining walls, basements, and foundation.

No pre-mixing or pre-wetting necessary.

Ready to use commercial grade formula can be applied using a standard garden pump sprayer Ideal for use on concrete, brick, stucco, stone (natural and synthetic), EIFS, pavers and more Protects against water damage, oil, stains, mold, mildew, de-icing salts, and pool/spa chemicals Water-based, non-toxic, non-flammable formula does not harm landscape plantings Vapor permeable (breathable) water proofer can be used on new concrete and masonry EACON128PD 8 pounds 8 x 4 x 12 inches USA EACON128PD 1 Gallon White but dries clear Protection Clear Pump Sprayer 1 1 240 square feet Bottle of Product No No.

Concrete and masonry filler & sealant – 132660 This is highly durable This is manufactured in United states Contains no flammable or toxic solvents Provides a weather-tight seal that stays flexible, prevents ice and water damage and resists cracking High performance, latex-based sealant formulated to repair cracks and holes in concrete, mortar, and masonry.

Contains silicone additives for improved adhesion and water resistance. Forms a durable, flexible and watertight seal. Resists gas, oil, grease and salt. Interior/exterior use. Paintable. Easy water clean-up.

Contains silicone additives for improved adhesion and water resistance. Forms a durable, flexible and watertight seal. Resists gas, oil, grease and salt. Interior/exterior use. Paintable. Water clean-up.

DRYLOK Extreme latex base masonry waterproof coating is ideal for interior, exterior, above or below grade masonry walls, basement walls, foundations, landscape walls, cinder blocks, concrete blocks, bare concrete swimming pools, stucco and brick.

Features Flexible Encapsulated Polymers for a beautiful, smooth waterproof finish. Specially formulated to resist mildew growth, with the incorporation of a non-hazardous green biocide, on the dry paint film.

DRYLOK Extreme withstands up to 15 lbs. of hydrostatic pressure, which is equivalent to a 33 ft. high wall of water. Tested to ASTM D-7088 Resistance to Hydrostatic Pressure and ASTM D-6904 Resistance to Wind Driven Rain.

Color: Gray.

The BEHR Premium Protector and Waterproofer is an interior/exterior coating designed to penetrate the surface up to 1/2 in. This product provides a natural clear finish and has a 10-Year Guarantee. This waterproofer creates a barrier inside the surface that keeps water out but allows trapped water vapors to escape, reducing corrosion, spalling, efflorescence and freeze-thaw damage.

The protection is not worn away with normal use. It protects long after the water beading is gone. Ideal for use on horizontal and vertical uncoated concrete and masonry surfaces such as: concrete block, pavers, stucco, brick, unglazed tiles, exposed aggregate concrete, sandstone and slate.