---
product_id: 7487207
title: "LastiSeal Brick & Concrete Sealer - Waterproofs & Strengthens Brick, Concrete, Pavers, Porous Stone - Flat/Natural - 5 Gals"
brand: "radonseal"
price: "₨25400"
currency: SCR
in_stock: true
reviews_count: 7
category: "Radon Seal"
url: https://www.desertcart.sc/products/7487207-lastiseal-brick-and-concrete-sealer-waterproofs-and-strengthens-brick-concrete
store_origin: SC
region: Seychelles
---

# 2× longer durability Deep waterproofing Invisible, non-peeling seal LastiSeal Brick & Concrete Sealer - Waterproofs & Strengthens Brick, Concrete, Pavers, Porous Stone - Flat/Natural - 5 Gals

**Brand:** radonseal
**Price:** ₨25400
**Availability:** ✅ In Stock

## Summary

> 🧱 Seal smart, protect longer — your masonry’s invisible armor!

## Quick Answers

- **What is this?** LastiSeal Brick & Concrete Sealer - Waterproofs & Strengthens Brick, Concrete, Pavers, Porous Stone - Flat/Natural - 5 Gals by radonseal
- **How much does it cost?** ₨25400 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sc](https://www.desertcart.sc/products/7487207-lastiseal-brick-and-concrete-sealer-waterproofs-and-strengthens-brick-concrete)

## 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

- • **Unmatched Longevity:** Lasts twice as long as silane/siloxane sealers and 10× longer than acrylics, saving you time and money on reapplications.
- • **Eco-Friendly & Versatile:** Water-based with ultra-low VOCs, perfect for both indoor and outdoor use on a wide range of porous masonry surfaces.
- • **Invisible Natural Finish:** Maintains your masonry’s authentic look with a flat, non-glossy finish that won’t peel, yellow, or fade under UV exposure.
- • **Trusted by Professionals & Homeowners:** Proven performance in extreme weather conditions, endorsed by contractors and chimney sweeps nationwide.
- • **Advanced Waterproofing & Strengthening:** Penetrates deep into brick, concrete, and porous stone to harden and reinforce surfaces against weather and wear.

## Overview

LastiSeal Brick & Concrete Sealer is a premium, water-based penetrating sealer that waterproofs and strengthens brick, concrete, pavers, and porous stone. Offering up to twice the durability of silane/siloxane sealers and ten times that of acrylics, it provides invisible, natural matte protection that resists peeling, yellowing, and UV damage. Ideal for both indoor and outdoor applications, LastiSeal extends the life of masonry surfaces while maintaining their authentic appearance, making it the go-to choice for professionals and discerning homeowners alike.

## Description

LastiSeal Brick & Concrete Sealer - Waterproofs & Strengthens Brick, Concrete, Pavers, Porous Stone - Flat/Natural - 5 Gals - Masonry Forms - desertcart.com

Review: Is It Possible to Give SIX STARS?!!!! - This stuff is unbelievable! We are the second owners of our entire brick home and were devastated to have wind driven rain coming through the exterior brick veneer and into the living spaces (we didn’t find out til after settlement the p.o.s. builders (Providence Builders: owner K. Annas and supervisor foreman M. Kirby of Hickory, NC) had their builders licenses CONFISCATED by the N.C. Atty General!!!) Our research as well as our experience told us other sealers break down quickly under UV sunlight and products requiring mineral spirits cleanup are a nightmare when using sprayers. Very trepidatiously we ordered our first 5 gallons and followed the “wet on wet” technique described by reviewer “Coltrane”. We sprayed it on, gave it some time to soak in and BEFORE the previous layer started to “dry” out, we’d go over it again, with another light spray (picture the patience it requires to use light coats through a can of spray paint, in order to get a truly good (no runs) finish). WELL, HURRICANE FLORENCE JUST RIPPED THROUGH HERE AND, GUESS WHAT - WE ACTUALLY WATCHED AS THE EXTERIOR WALLS WE APPLIED LASTI-SEAL HAD THE WIND-DRIVEN RAIN DROPS LITERALLY “BOUNCING OFF” INCHES OFF THE WALL. And, no leaks through the veneer in those areas. That was it - we are now in the process of spraying the entire house with Lasti Seal (satin). Starting with the monolithic brick veneers with a NorthEastern exposure. It is going to be a huge product but,we are convinced Lasti-Seal is literally going to save our home! (Oh yeah, we had our chimney sweeps get up on the roof and apply LastiSeal to our brick chimney and they are amazed - so, look for LastiSeal to soon be picked up by chimney sweeps across the nation, I have no doubts (the stuff they endorse now breaks down under UV sunlight.) Finally, the fact that this stuff is water cleanup makes it ALMOST too good to be true. But, it ain’t and it is true! UPDATE: 2020-05-24: well, It’s coming on 2 and 3 years since we “wet on” technique-hand pump sprayed LastiSeal onto our monolithic, NorthEast facing lake home’s vertical brick veneer walls and massive brick veneer chimney chase and we can honestly attest, LastiSeal saved our home! I came back to buy some more because Tropical Storm Arthur just blew through and CLEAR EVIDENCE as to the effectiveness of this LastiSeal product was discovered in THE ONE SMALL AREA I did not spray LastiSeal back in 2017-18 - a 2’ tall by 5’ wide rectangle where we had a firewood rack on a lower back deck which I did not empty and move but which is no longer there. For 4 straight days we had non-stop rain pushed by NNE winds off our lake as if Mother Nature decided to pressure wash the Earth - THE ONLY SPOT where the brick veneer was saturated was that 2’x5’ spot I missed spraying with LastiSeal several years back!!!!!!! Since I’m here, I happened to see a 1* review complaining about LastiSeal supposedly not working on sandstone steps and I can only say the only place we have had Leaks continue is on our front porch steps BUT NOT DUE TO ANY FAULT OF the LastiSeal but rather, BECAUSE OF PIN-size AND LARGER HOLES left by shoddy masons, a disreputable builder and the same Lack of Craftsmanship cited in our original review (above). I am so so,d on this darn stuff that the next time we pressure wash and seal the massive (50+ yards by 8’ tall brick veneer retaining wall along our driveway we are forgoing ever using any “silica” or “siloxane” -based sealers (which are BROKEN DOWN BY after several years by UV light) and sticking with the LastiSeal - the product MORE THAN PAYS FOR ITSELF IN THE LONG RUN! Best o’ Success to any poor souls trying to stop leaking masonry!
Review: very good product - I own a farm house, built in 1880 with a 135 year old brick foundation. I was noticing water puddles in the basement after heavy rains, which I knew was not good, in addition to brick dust on the perimeter. I called the company who manufacturers this product to discuss my situation. They were very accessible and willing to spend the time to provide advise. While they couldn't give me a guarantee on 135 year old brick, they told me the product was my best bet over anything I'd find at Lowes/Home Depot. I gave them my square footage and they inform me very accurately how much sealer to order. They also advise me to re-point the bricks in the weak spots prior to applying, to use "softer" mortar than today's standard based on the brick's age, and that on the first pass the bricks would absorb the most. Give it 24 hrs and then apply a second coat. The product was shipped to me quickly once ordered. My contractor followed all these steps and the sealer was applied by the end of October in preparation for winter. 4 months later, after A LOT of rain and snowfall, I have yet to see any water in the basement. It seems to have worked great and I am grateful. The absolute best part for me was the sealer is clear, not a paint that covers and changes the brick coloration. That was an important point for me aesthetically. I hope this sealer holds up, but I am pleased it solved a difficult problem at a reasonable price and the company was knowledgeable and pleasant to interact with regarding my questions.

## Features

- Lasting Protection – Provides exceptional durability, lasting up to 2× longer than silane/siloxane sealers and 10× longer than acrylic sealers, ensuring unmatched performance and service life.
- Waterproofs & Strengthens – Seals, hardens, and reinforces brick, concrete, and porous masonry. Deep-penetrating formula cures within pores to bond bricks, blocks, and pavers, extending the life of your surfaces. Ideal for crumbling brick, dusty concrete, and worn masonry.
- Invisible Protection – Penetrates and seals below the surface without leaving a film or coating. Won’t chip, peel, yellow, or fade, and maintains a natural, flat finish with no gloss or shine. Perfect for high foot and vehicular traffic areas, as well as pool decks, and stairs.
- Landscaping & Indoor Use – Water-based with ultra-low VOCs, ideal for use both indoors and outdoors.
- Incredibly Versatile – Ideal for interior and exterior surfaces, including brick, concrete, pavers, integrally colored concrete, limestone, concrete blocks, stucco, cultured stone, and other porous masonry.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B007C4QEMK |
| Batteries Included? | No |
| Batteries Required? | No |
| Best Sellers Rank | #311,185 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #799 in Hardware Sealers |
| Brand | RadonSeal |
| Color | Clear/Matte |
| Customer Reviews | 4.0 4.0 out of 5 stars (190) |
| Date First Available | February 21, 2012 |
| Included Components | 2 x 2.5-gal jugs |
| Is Discontinued By Manufacturer | No |
| Item Form | Liquid |
| Item Package Quantity | 1 |
| Item Weight | 45 pounds |
| Item dimensions L x W x H | 13 x 10 x 15 inches |
| Item model number | 140 |
| Manufacturer | Novion |
| Material | Polyester/Polyurethane Polymers |
| Number of Items | 2 |
| Part Number | 140 |
| Product Dimensions | 13 x 10 x 15 inches |
| Style | Penetrating Sealer |
| Surface Recommendation | Floor, Wall |
| UPC | 856255006065 |
| Unit Count | 640.0 Fluid Ounces |
| Water Resistance Level | Waterproof |

## Product Details

- **Brand:** RadonSeal
- **Item Weight:** 45 Pounds
- **Item dimensions L x W x H:** 13 x 10 x 15 inches
- **Material:** Polyester/Polyurethane Polymers
- **Style:** Penetrating Sealer

## Images

![LastiSeal Brick & Concrete Sealer - Waterproofs & Strengthens Brick, Concrete, Pavers, Porous Stone - Flat/Natural - 5 Gals - Image 1](https://m.media-amazon.com/images/I/71nfj0jsO5L.jpg)
![LastiSeal Brick & Concrete Sealer - Waterproofs & Strengthens Brick, Concrete, Pavers, Porous Stone - Flat/Natural - 5 Gals - Image 2](https://m.media-amazon.com/images/I/81bjXDAQ+dL.jpg)
![LastiSeal Brick & Concrete Sealer - Waterproofs & Strengthens Brick, Concrete, Pavers, Porous Stone - Flat/Natural - 5 Gals - Image 3](https://m.media-amazon.com/images/I/813eI6ZG6VL.jpg)
![LastiSeal Brick & Concrete Sealer - Waterproofs & Strengthens Brick, Concrete, Pavers, Porous Stone - Flat/Natural - 5 Gals - Image 4](https://m.media-amazon.com/images/I/91aGCJj9MnL.jpg)
![LastiSeal Brick & Concrete Sealer - Waterproofs & Strengthens Brick, Concrete, Pavers, Porous Stone - Flat/Natural - 5 Gals - Image 5](https://m.media-amazon.com/images/I/81rwYFuH5KL.jpg)

## Questions & Answers

**Q: Will this still allow efflorescence to come up in pavers? I don't want to trap efflorescence in the stones, but I want to protect them immediately.**
A: This product appears to meet its description, it's absorbed into to brick & nothing appears to go in or come out. It seals well. I've had it on the walls for one year. You're welcome.

**Q: Beyond sealing does LastiSeal bring out the color of my concrete pavers? Gloss??**
A: Very little gloss. I don't know if it will bring out the color of your pavers as I just on the  concrete garage floor and driveway.

**Q: does it have a gloss finish**
A: No. The intention of the sealer is penetrate into porous building materials (hence the word porous) without changing the look or friction of the surface.

**Q: Will this product turn white/cloudy when exposed to water?**
A: Not at all. It's a milky color in the bottle but it doesn't turn anything white that I applied it to. What I did notice was the mortar between the bricks feels differently when I run my finger across it. Little grains that used to rub off before don't now. And the water seems to run right off

## Customer Reviews

### ⭐⭐⭐⭐⭐ Is It Possible to Give SIX STARS?!!!!
*by A***R on September 18, 2018*

This stuff is unbelievable! We are the second owners of our entire brick home and were devastated to have wind driven rain coming through the exterior brick veneer and into the living spaces (we didn’t find out til after settlement the p.o.s. builders (Providence Builders: owner K. Annas and supervisor foreman M. Kirby of Hickory, NC) had their builders licenses CONFISCATED by the N.C. Atty General!!!) Our research as well as our experience told us other sealers break down quickly under UV sunlight and products requiring mineral spirits cleanup are a nightmare when using sprayers. Very trepidatiously we ordered our first 5 gallons and followed the “wet on wet” technique described by reviewer “Coltrane”. We sprayed it on, gave it some time to soak in and BEFORE the previous layer started to “dry” out, we’d go over it again, with another light spray (picture the patience it requires to use light coats through a can of spray paint, in order to get a truly good (no runs) finish). WELL, HURRICANE FLORENCE JUST RIPPED THROUGH HERE AND, GUESS WHAT - WE ACTUALLY WATCHED AS THE EXTERIOR WALLS WE APPLIED LASTI-SEAL HAD THE WIND-DRIVEN RAIN DROPS LITERALLY “BOUNCING OFF” INCHES OFF THE WALL. And, no leaks through the veneer in those areas. That was it - we are now in the process of spraying the entire house with Lasti Seal (satin). Starting with the monolithic brick veneers with a NorthEastern exposure. It is going to be a huge product but,we are convinced Lasti-Seal is literally going to save our home! (Oh yeah, we had our chimney sweeps get up on the roof and apply LastiSeal to our brick chimney and they are amazed - so, look for LastiSeal to soon be picked up by chimney sweeps across the nation, I have no doubts (the stuff they endorse now breaks down under UV sunlight.) Finally, the fact that this stuff is water cleanup makes it ALMOST too good to be true. But, it ain’t and it is true! UPDATE: 2020-05-24: well, It’s coming on 2 and 3 years since we “wet on” technique-hand pump sprayed LastiSeal onto our monolithic, NorthEast facing lake home’s vertical brick veneer walls and massive brick veneer chimney chase and we can honestly attest, LastiSeal saved our home! I came back to buy some more because Tropical Storm Arthur just blew through and CLEAR EVIDENCE as to the effectiveness of this LastiSeal product was discovered in THE ONE SMALL AREA I did not spray LastiSeal back in 2017-18 - a 2’ tall by 5’ wide rectangle where we had a firewood rack on a lower back deck which I did not empty and move but which is no longer there. For 4 straight days we had non-stop rain pushed by NNE winds off our lake as if Mother Nature decided to pressure wash the Earth - THE ONLY SPOT where the brick veneer was saturated was that 2’x5’ spot I missed spraying with LastiSeal several years back!!!!!!! Since I’m here, I happened to see a 1* review complaining about LastiSeal supposedly not working on sandstone steps and I can only say the only place we have had Leaks continue is on our front porch steps BUT NOT DUE TO ANY FAULT OF the LastiSeal but rather, BECAUSE OF PIN-size AND LARGER HOLES left by shoddy masons, a disreputable builder and the same Lack of Craftsmanship cited in our original review (above). I am so so,d on this darn stuff that the next time we pressure wash and seal the massive (50+ yards by 8’ tall brick veneer retaining wall along our driveway we are forgoing ever using any “silica” or “siloxane” -based sealers (which are BROKEN DOWN BY after several years by UV light) and sticking with the LastiSeal - the product MORE THAN PAYS FOR ITSELF IN THE LONG RUN! Best o’ Success to any poor souls trying to stop leaking masonry!

### ⭐⭐⭐⭐⭐ very good product
*by L***A on February 18, 2017*

I own a farm house, built in 1880 with a 135 year old brick foundation. I was noticing water puddles in the basement after heavy rains, which I knew was not good, in addition to brick dust on the perimeter. I called the company who manufacturers this product to discuss my situation. They were very accessible and willing to spend the time to provide advise. While they couldn't give me a guarantee on 135 year old brick, they told me the product was my best bet over anything I'd find at Lowes/Home Depot. I gave them my square footage and they inform me very accurately how much sealer to order. They also advise me to re-point the bricks in the weak spots prior to applying, to use "softer" mortar than today's standard based on the brick's age, and that on the first pass the bricks would absorb the most. Give it 24 hrs and then apply a second coat. The product was shipped to me quickly once ordered. My contractor followed all these steps and the sealer was applied by the end of October in preparation for winter. 4 months later, after A LOT of rain and snowfall, I have yet to see any water in the basement. It seems to have worked great and I am grateful. The absolute best part for me was the sealer is clear, not a paint that covers and changes the brick coloration. That was an important point for me aesthetically. I hope this sealer holds up, but I am pleased it solved a difficult problem at a reasonable price and the company was knowledgeable and pleasant to interact with regarding my questions.

### ⭐⭐⭐⭐ Finally a waterproofing that WORKS?!
*by S***E on July 18, 2015*

For now REALLY like, test of time will tell. I never give 5 stars. Always room for improvement but after a month very good. Went on FINE with hand sprayer. Edit: After 5 months STILL working Toss the others and don't waste your time with them.

## Frequently Bought Together

- LastiSeal Brick & Concrete Sealer - Waterproofs & Strengthens Brick, Concrete, Pavers, Porous Stone - Flat/Natural - 5 Gals
- 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 2.5-gal – Flat Finish. Waterproofs & Strengthens Brick, Concrete, Pavers. Interior/Exterior.

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*Product available on Desertcart Seychelles*
*Store origin: SC*
*Last updated: 2026-03-15*