10 Best Concrete Waterproofing Sealer of August 2025

• 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
• 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
• 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

L R

• Liquid concentrate formula makes 1 gallon of commercial grade water proofer
• Safe around plants, people and pets
• Eco-friendly, low VOC, low odor formula is safe to walk on in less than 2 hours
• Ideal for use on concrete, brick, stucco, stone (natural and synthetic), eifs, pavers and more
• Vapor permeable (breathable) water proofer can be used on new concrete and masonry

Eco Advance

• An industrial-grade, water-based, silane/siloxane engineered to reduce water and moisture intrusion, while protecting concrete or masonry substrates from chlorides and deicing salts.
• Resists deicing salt/chloride damage, freeze thaw damage, spalling, pitting, cracking, mold, mildew, efflorescence
• Reduces water ingress, moisture intrusion and ASR
• Excellent water beading effect, excellent penetration, easy application with sprayer, roller or brush, no appearance change - dries clear, Low VOCs
• Use on driveways, garages, basements, patios, pool decks. Covers up to 250 sqaure feet per gallon per coat.

Ghostshield

• High quality product
• High durable product
• Manufactured in United States

OLYMPIC/PPG ARCHITECTURAL FIN

• Creates a UV-stable, non-yellowing coating that preserves the natural color of the concrete and resists weathering and decay.
• Helps prevent salt deposits, cracking, spalling, mold & mildew growth, lime bloom and freeze/thaw damage
• Water-based, non-toxic, Eco-friendly sealer that will not harm pets, plants or people
• Flexible, breathable barrier, will not peel, prevents color fading, soap & water clean-up
• Forms a long-lasting water-resistant shield that penetrates below the surface to protect against water damage from the inside-out

SEAL-ONCE

• Clear, Water Repellent Protection for All Exterior, Porous Masonry & Concrete Surfaces Including Concrete, Brick, Natural Stone, Sandstone, Limestone, Cultured Stone (Stone Veneer/Manufactured Stone), Granite, and More
• Waterproofs and Protects Masonry & Concrete Surfaces from Water Damage & Freeze/Thaw Damage
• 100% Breathable - Doesn't Form a Film, Allows Trapped Moisture to Escape Which Prevents Pitting, Cracking & Delaminating
• Water-Based/Eco-Friendly - Soap & Water Cleanup, Low Odor
• 5 Year Warranty on Vertical Concrete & Masonry Surfaces

MasonryDefender

• An industrial-grade, water-based, proprietary sealer designed to densify, strengthen and waterproof concrete: increasing abrasion resistance while reducing moisture and vapor intrusion
• Prevents the growth of mold, mildew, efflorescence
• Reduces hydrostatic pressure, water vapor transmission, moisture intrusion and ASR
• Increases concrete’s abrasion resistance and strengthens concrete up to 50%
• Available in an industry first ultra-concentrate, 1 gallon of Lithi-Tek 9500 mixes with 4 gallons of water to make 5 gallons of sealer that will treat up to 1000 sq. ft. of concrete per coat.

Ghostshield

• Water Based Concrete Sealer: Restore, protect and extend the life of any masonry horizontal or vertical surface with a high-performance hydrophobic coating
• Clear Spray Sealant: The concrete sealer does not alter surface appearance. It does not leave a surface film. Made using no-sheen and non-yellowing formula
• The clear waterproof spray is to be used as a primer before painting to prohibit moisture transfer in the substrate and to protect from stains such as oil, gas and anti-freeze
• Water Repellent: 100% penetrating coating provides excellent resistance to water, salt spray, ice removal agents and wind driven rain
• Rainguard water repellent sealer protects your investment with a 10-year satisfaction and can be used anywhere in the country

Rain Guard

• 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.
• 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.
• 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.
• Commercial-Grade Backed by a Money-Back Guarantee - Trusted Since 1997

RadonSeal

• Penetrating (2") Solvent Based Silane/Siloxane Water Repellent. Interior/Exterior.
• Superior efflorescence and strong alkali resistance. Stops concrete dusting.
• Resists damage cause by de-icing salts and freeze/thaw cycles.
• Lasts up to 10 years and won't change the look of the concrete.
• Provides excellent resistance to mold, mildew, and fungus.

Foundation Armor