LastiSeal® Penetrating Brick and Masonry Sealer

Long-Lasting Protection for Brick, Porous Masonry, and Concrete

LastiSeal® Brick & Masonry Sealer is a unique, state-of-the-art, waterproofing sealer for bricks, concrete, pavers, stones, and porous building materials. It penetrates deep into the substrate (2-4"), fills the pores and cures as a hard plastic – it's like filling the pores with epoxy! The seal is practically permanent!

LastiSeal® will bead or shed surface water and will block negative side water pressure in underground applications. Water cannot push it out! Backed by a 15-Year Waterproofing Warranty.

All-Purpose sealer for brick, concrete, and masonry

This waterborne, polyester-based sealer not only waterproofs but it also bonds the substrate. (Polyester is sometimes called "the poor man's epoxy.") If dusting, flaking, or crumbling are of concern, LastiSeal® will strengthen and harden the brick or masonry thus preserving its life. The surface will become noticeably harder – hammering in a nail will prove to be much harder.

LastiSeal does not leave a film and does not make the surface slippery. It is the safer choice for sealing horizontal surfaces like walkways, pool-decks, patio pavers, and commercial flooring.

What Makes LastiSeal® So Special?


LastiSeal® Brick & Masonry Sealer is unique. There are no similar products in stores!

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Choose Between a Flat (Matte) or Satin Finish – LastiSeal FLAT does not change the appearance or profile of the surface. LastiSeal SATIN is enriched with acrylic leaving an attractive low-gloss finish. Particularly suitable for indoor brick and masonry walls, patio pavers, brick walkways, porous stamped concrete and colored concrete. The satin finish will enhance the appearance of old brick, concrete, and masonry but without leaving a film.

LastiSeal® is not sold in stores but is delivered by courier directly from the factory to your door. Orders received by 1 PM ET normally ship the same day and are delivered by courier within 2 to 5 workdays.

SALE on 5-gal. pails - $10.00 OFF plus Free Shipping!

LastiSeal® Brick & Masonry Sealer (Flat)
Size Price Shipping  
5-gallons $209  $199
FREE Order Now button
2.5-gallons $105
$12 Order Now button
1-gallon $44 $9 Order Now button
8-oz. (sample bottle) $14 FREE Order Now button


LastiSeal® Brick & Masonry Sealer (Satin)
Size Price Shipping  
5-gallons $229  $219
FREE Order Now button
2.5-gallons $115
$12 Order Now button
1-gallon $49 $9 Order Now button
8-oz. (sample bottle) $14 FREE Order Now button

Based on shipping by courier to the lower 48 states. For expedited shipping or shipping to other states and Canada, please inquire first by telephone or e-mail.

Commercial Customers: LastiSeal® is available in 55-gallon drums at volume discounts or in 24 and 36 pail shipping pallets. Please phone or email us first.

Unopened pails in salable condition are returnable. Please review our Commercial Terms.

All-Purpose Brick and Masonry SealerCoverage

Coverage depends on the porosity and composition of the substrate. Older brick (like Chicago brick), concrete, and masonry (over 20 years) will require 2 applications for a proper waterproofing seal. Additional applications can be made next day or later.

  • CONCRETE BLOCKS & POROUS MASONRY – 1 application will seal 100-150 sq. ft. (per gal.)
  • BRICKS – 1 application will seal 150-225 sq. ft. (per gal.)
  • OUTDOOR POURED CONCRETE – 1 application will seal 150-200 sq. ft. (per gal.)
  • INDOOR POURED CONCRETE – 1 application will seal 200-225 sq. ft. (per gal.)
  • GROUT– 1 application will seal 16 sq. ft. (per 8-oz.)
  • SECOND APPLICATION – 250-300 sq. ft. (per gal.)

The All-Purpose Sealer for Porous Materials

LastiSeal® is most commonly used for sealing brick walls, foundations, chimneys, and fireplaces but it can is also used for sealing pavers, stones, tiles, and porous masonry. The rule of thumb is, as long as the substrate is porous you can use LastiSeal. You can use it even for sealing wood! Use LastiSeal for sealing and waterproofing:

  • DRIVEWAY PAVERSChimney Sealer

Easy maintenance – LastiSeal will help block the penetration of dirt, grease, oil, stains, spills, and outdoor elements making the cleaning and maintenance much easier (especially for patios and pool decks).

Need Help Choosing a Waterproofing Sealer?

The Ideal Primer – LastiSeal® is a great primer for paints, coatings, and flooring adhesives with the exception of latex, silicones, and siloxanes. Since the pores are filled, stucco, thinset, mortar, or patching compounds do not adhere well.

It does much more than the common primers. By waterproofing the substrate and reducing water vapor transmission, LastiSeal greatly extends the life of paints and coatings.

Preserves and Protects

Use LastiSeal as protection against:

  • WIND-DRIVEN RAIN – Waterproofs brick chimneys, walls, facades against rainwater.
  • NEGATIVE SIDE WATER PRESSURE – Prevents water seepage through masonry underground.
  • FREEZE-THAW – Protects brick, concrete, and masonry against freeze-thaw damage and road salts.
  • SPALLING – Hardens concrete and brick to protect against pitting, spalling, dusting and crumbling.
  • SPILLS – Resists spills, motor oil, grease, and chemical spills. Easier to clean.
  • MOLD, ALGAE - Reduces the growth of mold, mildew and algae. Makes for easier cleaning.
  • HUMIDITY – Reduces water vapor transmission through the substrate.
  • EFFLORESCENCE – Reduces unsightly efflorescence.

Eco-Friendly, UV Resistant, and Vapor Permeable

Environment-Friendly – LastiSeal® Brick & Masonry Sealer is a non-toxic, nonflammable, and non-hazardous. No odor. Ultra-low VOCs. Not harmful to plants, grass, or aquatic life. Safe for use indoors and out

paver sealed with LastiSeal
Sealing porous pavers
Click To Enlarge

Unsurpassed Service Life – Unlike paints or surface sealers, LastiSeal Brick & Masonry Sealer does not form a surface film (coating) but seals the substrate internally and thus practically permanently. Concrete sealers and brick sealers sold in stores have to be re-applied every other year. In the long run, LastiSeal is the economical solution even before considering all the labor.

UV-Resistant – Since LastiSeal works deep inside your brick, it is not affected by ultraviolet rays or traffic. Paints, coatings, and surface sealants are susceptible to flaking, peeling, cracking, or simply wearing away due to traffic, UV-rays, water or vapor pressure, or efflorescence. Eventually, you would need to remove the old coating (or it will start peeling even faster) and repaint the entire surface.

LastiSeal Brick Sealer waterproofs but still allows the substrate to "breathe" and dry out.

Surface Prep and Application

Conditions – The brick, concrete, and masonry needs to be thoroughly dry. Let the substrate dry for 2 days after a heavy rain. Avoid heavy rains for 24 hours after the application. The surface and ambient air must be above 45 °F but not hot in direct sunlight to avoid flashing. In case of LastiSeal Satin, the surface temperature must remain above 45 °F for at least 24 hours.

Surface Preparation – Remove old paint, adhesives, oil stains, grease, and efflorescence. Vacuum excessive dust or dirt. Let new concrete cure for at least 4 weeks. Mask glass, metals, and plants and finished surfaces against over-spray. How to Safely Remove Efflorescence.

Apply LastiSeal® Brick Sealer using a hand-pump garden sprayer or a paint roller (3/4" nap). Spray a continuous saturating film on the surface (back-roll any puddles). If needed, a second coat can be applied 24 hours or later. Ready for foot traffic in several hours and for vehicles in 1 to 3 days, depending on the substrate.

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Comparison with Other Brick Sealers

Water-repellent siloxane sealers or the common acrylic-based sealers sold in stores have to be reapplied every other year. In the long run, they would cost you much more than LastiSeal.

Not Dependent On Cement Content – Unlike RadonSeal® Concrete Sealer (our #1 sealer for concrete), LastiSeal does not depend on a chemical reaction with the substrate. It just fills the pores and hardens. This allows it to seal concretes and porous materials that RadonSeal cannot. However, RadonSeal is the best sealer for standard-quality poured concrete or blocks because it seals deeper and tighter and is guaranteed to seal even against radon gas. And RadonSeal is ideal for underwater use inside ponds, pools, and reservoirs.