--- product_id: 27298944 title: "LastiSeal Brick & Concrete Sealer – Deep-Penetrating Sealer that Strengthens Surfaces – Water-Resistant Protection for Brick, Concrete & Pavers – Interior & Exterior Use – Flat/Natural (2.5 Gallon)" brand: "radonseal" price: "474752CFA" currency: XOF in_stock: true reviews_count: 8 category: "Radon Seal" url: https://www.desertcart.sn/products/27298944-lastiseal-brick-and-concrete-sealer-deep-penetrating-sealer-that-strengthens store_origin: SN region: Senegal --- # Water-resistant deep penetration Strengthens brick & concrete pores Easy low-pressure application LastiSeal Brick & Concrete Sealer – Deep-Penetrating Sealer that Strengthens Surfaces – Water-Resistant Protection for Brick, Concrete & Pavers – Interior & Exterior Use – Flat/Natural (2.5 Gallon) **Brand:** radonseal **Price:** 474752CFA **Availability:** ✅ In Stock ## Summary > 🧱 Seal Smart, Stay Dry, Look Natural! ## Quick Answers - **What is this?** LastiSeal Brick & Concrete Sealer – Deep-Penetrating Sealer that Strengthens Surfaces – Water-Resistant Protection for Brick, Concrete & Pavers – Interior & Exterior Use – Flat/Natural (2.5 Gallon) by radonseal - **How much does it cost?** 474752CFA with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.sn](https://www.desertcart.sn/products/27298944-lastiseal-brick-and-concrete-sealer-deep-penetrating-sealer-that-strengthens) ## Best For - radonseal enthusiasts ## Why This Product - Trusted radonseal brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Ultimate Water Defense:** Blocks moisture intrusion while letting surfaces breathe for year-round durability. - • **Invisible Strength Boost:** Deep-penetrating formula reinforces brick, concrete, and masonry without altering natural look. - • **Versatile Surface Savior:** Ideal for patios, driveways, pool decks, and commercial or residential masonry. - • **Weatherproof Your Investment:** Protects against rain, snow, freeze/thaw cycles to extend surface lifespan. - • **Effortless Pro-Grade Application:** Apply quickly with sprayer or roller; dries fast for immediate foot and vehicle traffic. ## Overview LastiSeal is a premium 2.5-gallon water-based polyurethane/polyester sealer designed for deep penetration into porous brick, concrete, and masonry surfaces. It provides invisible, long-lasting water resistance and strengthens surfaces against weather damage, efflorescence, and wear. Suitable for both interior and exterior use, it’s easy to apply with a sprayer or roller and dries quickly without yellowing or peeling, maintaining a natural, non-slip finish. ## Description LastiSeal Brick & Concrete Sealer – Deep-Penetrating Sealer that Strengthens Surfaces – Water-Resistant Protection for Brick, Concrete & Pavers – Interior & Exterior Use – Flat/Natural (2.5 Gallon): desertcart.com: Tools & Home Improvement Review: Results are not obvious - I applied this to very old patio bricks, and it has actually helped divert rain runoff to a center drain. The applied matte finish it is undetectable from bare brick. It’s not magic, but if you have good drainage already, this helps prevent mildew/algae and keeps water out of porous brick. It also seems to help wash soil and other debris away. When applied and allowed to dry, it is hard to tell the difference between treated and untreated surface, so you need to mark where you start and stop if you do not do the whole thing in one pass. It is super easy to apply if you use a $20 garden sprayer and wash the sprayer out between applications. Review: LastiSeal-Works As Advertised! - We enclosed a covered 21'x14' open patio with a 2ft high brick\mortar wall and 6' tall weather proof vinyl windows, creating a wonderful Sun Room addition. Our concern for weather penetration through the double brick wall and mortar was confirmed with the first heavy rain storm. Although there was no standing water intrusion, the very porous clay bricks\mortar quickly acted like a dry sponge and dampened the now living space interior of the sun room's masonry window foundation...not good. After doing extensive on-line research, I came upon the RadonSeal products and quickly identified their polyester polymer based "LastiSeal" Brick and Masonry Sealer as what we needed to block any moisture\rain intrusions. After speaking with Craig at RadonSeal, he confirmed that their LastiSeal product would be a great solution to our sun room's moisture issues. As weather became optimum (but winds were strong), I choose to apply the treatments with a brush (very easy and simple). Our bricks and mortar are so porous, the first treatment soaked in with the surface dry-to-the-touch in 5 minutes! As per directions, 24 hours later I reapplied (again with brush) and the second application took 2 hours for surface to dry. Through all of the applications and once dry to the touch, the brick\mortar surfaces returned to their original colors, again matching our home's brick-veneer facade! Two days after the 2nd application and again twice in the past 3 weeks, thunderstorms soaked the brick\mortar exterior walls of the sun room with absolutely NO moisture intrusion into the interior...WOW! We really love our new sun room addition and understanding that LastiSeal never needs reapplying, I can unequivocally state, "LastiSeal is Worth Every Penny"!!! Ted ## Features - Long-Lasting Brick & Concrete Sealer Protection – Deep-penetrating brick and concrete sealer designed to help extend the service life of brick, concrete, pavers, and masonry surfaces. Helps resist water intrusion and surface wear for long-term performance as a penetrating masonry sealer for interior and exterior use. - Water-Resistant Concrete Sealer & Masonry Protection – Penetrates deeply into porous concrete, brick, and stone to help reduce water absorption and limit moisture intrusion. Helps keep water from penetrating the surface while allowing materials to breathe. Ideal waterproofing alternative for basements, foundations, driveways, patios, and concrete floors. - Penetrating Sealer That Strengthens Surfaces – Deep-penetrating concrete sealer helps strengthen and support brick, concrete, block, and masonry. Works within the pores to help bind materials together and improve surface integrity. Ideal for sealing crumbling brick, dusty concrete, and worn masonry surfaces. - Advanced Water-Based Formula – Water-based penetrating formula with polymer technology designed for durable performance. Will not peel, yellow, or fade under normal conditions. Treated surfaces can be coated with acrylic or epoxy. Non-film forming and helps maintain a natural, non-slip surface. - Weather-Resistant Protection – Helps protect brick and concrete surfaces from rain, snow, and freeze/thaw conditions. Designed to help reduce weather-related wear and maintain surface durability year-round. - Easy-to-Apply Concrete Sealer – Low Maintenance – Simple application using a low-pressure sprayer or roller. Designed for easy use with minimal maintenance, delivering consistent, professional results. Treated surfaces are ready for foot and vehicle traffic quickly. - Versatile Brick, Concrete & Paver Sealer – Multi-surface penetrating sealer for brick, concrete, pavers, limestone, concrete block, stucco, cultured stone, and other porous masonry. Ideal for driveways, patios, walkways, pool decks, garage floors, stairs, and more. - Ideal for Residential and Commercial Use – Suitable for homes, businesses, and industrial properties, LastiSeal provides water-resistant protection for brick and concrete surfaces in a wide range of environments. - Helps Resist Water Absorption & Efflorescence – Helps reduce water absorption and the conditions that contribute to efflorescence, supporting the long-term appearance and integrity of indoor and outdoor masonry surfaces. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B01AO9DRCY | | Best Sellers Rank | #271,250 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #824 in Hardware Sealers | | Brand | RadonSeal | | Brand Name | RadonSeal | | Color | Clear | | Compatible Material | Concrete, Brick, Pavers, Stucco, Porous Stone | | Customer Reviews | 4.4 out of 5 stars 177 Reviews | | Item Form | Liquid | | Item Weight | 23 pounds | | Manufacturer | Novion | | Material | Polyurethane & Polyester Blend | | Material Type | Polyurethane & Polyester Blend | | Model | 143 | | Number of Items | 1 | | Part Number | 143 | | Style | Penetrating Sealer | | Style Name | Penetrating Sealer | | Surface Recommendation | Floor & Wall | | UPC | 856255006072 | | Unit Count | 320 Fluid Ounces | | Water Resistance Level | Water Resistant | ## Product Details - **Material:** Polyurethane & Polyester Blend - **Brand:** RadonSeal - **Style:** Penetrating Sealer - **Item Weight:** 23 Pounds - **Water Resistance Level:** Waterproof ## Images ![LastiSeal Brick & Concrete Sealer – Deep-Penetrating Sealer that Strengthens Surfaces – Water-Resistant Protection for Brick, Concrete & Pavers – Interior & Exterior Use – Flat/Natural (2.5 Gallon) - Image 1](https://m.media-amazon.com/images/I/61bJFkkdwCL.jpg) ![LastiSeal Brick & Concrete Sealer – Deep-Penetrating Sealer that Strengthens Surfaces – Water-Resistant Protection for Brick, Concrete & Pavers – Interior & Exterior Use – Flat/Natural (2.5 Gallon) - Image 2](https://m.media-amazon.com/images/I/81bjXDAQ+dL.jpg) ![LastiSeal Brick & Concrete Sealer – Deep-Penetrating Sealer that Strengthens Surfaces – Water-Resistant Protection for Brick, Concrete & Pavers – Interior & Exterior Use – Flat/Natural (2.5 Gallon) - Image 3](https://m.media-amazon.com/images/I/813eI6ZG6VL.jpg) ![LastiSeal Brick & Concrete Sealer – Deep-Penetrating Sealer that Strengthens Surfaces – Water-Resistant Protection for Brick, Concrete & Pavers – Interior & Exterior Use – Flat/Natural (2.5 Gallon) - Image 4](https://m.media-amazon.com/images/I/91aGCJj9MnL.jpg) ![LastiSeal Brick & Concrete Sealer – Deep-Penetrating Sealer that Strengthens Surfaces – Water-Resistant Protection for Brick, Concrete & Pavers – Interior & Exterior Use – Flat/Natural (2.5 Gallon) - Image 5](https://m.media-amazon.com/images/I/81rwYFuH5KL.jpg) ## Questions & Answers **Q: What's the cleaning procedure prior to using LastiSeal? I have pavers and usually just pressure wash a few days before** A: If the pavers are generally clean and in good shape, then pressure washing is not always necessary. As noted on the instructions: SURFACE CONDITIONS Substrate should be dry prior to sealer application. Brick, concrete and porous masonry may require SEVERAL days to dry after heavy rain or pressure washing. Avoid rain for 24 hours after sealer application. Ambient air and surface temperatures must be above 45º and below 100º F during the application and for 24 hours after. Avoid applying to hot surfaces in direct sunlight, or in strong winds and excessive humidity. New concrete should be allowed to cure for at least 28 days. SURFACE PREP Surfaces must be clean, bare and porous. Remove paints, sealers, curing compounds, adhesives, oil, grease, mold, efflorescence and other contaminants that might interfere with the penetration of the sealer. Hard-troweled concrete surfaces require chemical etching or mechanical abrasion to increase porosity. A sufficiently porous surface should readily absorb the sealer. Use PowerEtch Concrete Etcher & Cleaner to obtain a proper surface profile. If chemical cleaners or concrete etchers are used, be sure to throughly rinse and remove them prior to sealer application. Mask surfaces not intended to be sealed. Vacuum or blow off excessive dust and loose particles. Cheers, ---------- Craig - Product Tech RadonSeal **Q: Will it work for a brick patio that we are enclosing for an Arizona room or porch** A: LastiSeal will seal any porous masonry. Bricks, blocks, sandstone, limestone....if its porous, LastiSeal is an excellent choice. **Q: Can this product be used in cold climates? I read that sealers on brick in cold climates can trap the water and cause the brick to flake.** A: I am using it in Wilmington, NC so can not give any feedback of using it in cold weather. It is doing exactly what I wanted it to do though **Q: Does concrete sealer work on rock walkways?** A: LastiSeal Brick & Concrete Sealer is a nano-chemical, PENETRATING sealer. It can be applied to POROUS surfaces/materials; poured concrete, concrete blocks, brick, mortar, pavers, limestone, sandstone, etc. It is not advised to use this product over rock surfaces. Rock is dense and simply will not absorb the product internally. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Results are not obvious *by D***7 on October 15, 2024* I applied this to very old patio bricks, and it has actually helped divert rain runoff to a center drain. The applied matte finish it is undetectable from bare brick. It’s not magic, but if you have good drainage already, this helps prevent mildew/algae and keeps water out of porous brick. It also seems to help wash soil and other debris away. When applied and allowed to dry, it is hard to tell the difference between treated and untreated surface, so you need to mark where you start and stop if you do not do the whole thing in one pass. It is super easy to apply if you use a $20 garden sprayer and wash the sprayer out between applications. ### ⭐⭐⭐⭐⭐ LastiSeal-Works As Advertised! *by T***O on January 6, 2017* We enclosed a covered 21'x14' open patio with a 2ft high brick\mortar wall and 6' tall weather proof vinyl windows, creating a wonderful Sun Room addition. Our concern for weather penetration through the double brick wall and mortar was confirmed with the first heavy rain storm. Although there was no standing water intrusion, the very porous clay bricks\mortar quickly acted like a dry sponge and dampened the now living space interior of the sun room's masonry window foundation...not good. After doing extensive on-line research, I came upon the RadonSeal products and quickly identified their polyester polymer based "LastiSeal" Brick and Masonry Sealer as what we needed to block any moisture\rain intrusions. After speaking with Craig at RadonSeal, he confirmed that their LastiSeal product would be a great solution to our sun room's moisture issues. As weather became optimum (but winds were strong), I choose to apply the treatments with a brush (very easy and simple). Our bricks and mortar are so porous, the first treatment soaked in with the surface dry-to-the-touch in 5 minutes! As per directions, 24 hours later I reapplied (again with brush) and the second application took 2 hours for surface to dry. Through all of the applications and once dry to the touch, the brick\mortar surfaces returned to their original colors, again matching our home's brick-veneer facade! Two days after the 2nd application and again twice in the past 3 weeks, thunderstorms soaked the brick\mortar exterior walls of the sun room with absolutely NO moisture intrusion into the interior...WOW! We really love our new sun room addition and understanding that LastiSeal never needs reapplying, I can unequivocally state, "LastiSeal is Worth Every Penny"!!! Ted ### ⭐⭐⭐⭐⭐ PROVEN PRODUCT *by M***. on October 16, 2025* It works as described. Used for many years. Long time proven product. Fantastic technology. ## Frequently Bought Together - LastiSeal Brick & Concrete Sealer 2.5-gal – Flat Finish. Waterproofs & Strengthens Brick, Concrete, Pavers. Interior/Exterior. - Chapin 20000 Made in USA 1 -Gallon Lawn and Garden Pump Pressured Sprayer, for Spraying Plants, Garden Watering, Weeds and Pests, Polypropylene, Translucent White - LastiSeal Brick & Concrete Sealer - Waterproofs & Strengthens Brick, Concrete, Pavers, Porous Stone - Flat/Natural - 5 Gals --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.sn/products/27298944-lastiseal-brick-and-concrete-sealer-deep-penetrating-sealer-that-strengthens](https://www.desertcart.sn/products/27298944-lastiseal-brick-and-concrete-sealer-deep-penetrating-sealer-that-strengthens) --- *Product available on Desertcart Senegal* *Store origin: SN* *Last updated: 2026-08-14*