---
product_id: 35716395
title: "Plus Concrete Sealer – Deep Penetrating Waterproofing for Basement Floors, Foundation Walls & Concrete Block – Reduces Moisture & Strengthens Concrete (5 Gallon) | Concrete Protectant that Reduces Moisture, Strengthens Slabs & Reduces Radon Gas Levels, for Basements, Garages & Driveways"
brand: "radonseal"
price: "¥153883"
currency: JPY
in_stock: true
category: "Radon Seal"
url: https://www.desertcart.jp/products/35716395-plus-concrete-sealer-deep-penetrating-waterproofing-for-basement-floors-foundation
store_origin: JP
region: Japan
---

# Deep penetrating waterproofing Strengthens & chemically densifies concrete Long-lasting internal concrete seal Plus Concrete Sealer – Deep Penetrating Waterproofing for Basement Floors, Foundation Walls & Concrete Block – Reduces Moisture & Strengthens Concrete (5 Gallon) | Concrete Protectant that Reduces Moisture, Strengthens Slabs & Reduces Radon Gas Levels, for Basements, Garages & Driveways

**Brand:** radonseal
**Price:** ¥153883
**Availability:** ✅ In Stock

## Summary

> 🛠️ Seal Deep, Live Dry: The Ultimate Concrete Armor for Your Foundation

## Quick Answers

- **What is this?** Plus Concrete Sealer – Deep Penetrating Waterproofing for Basement Floors, Foundation Walls & Concrete Block – Reduces Moisture & Strengthens Concrete (5 Gallon) | Concrete Protectant that Reduces Moisture, Strengthens Slabs & Reduces Radon Gas Levels, for Basements, Garages & Driveways by radonseal
- **How much does it cost?** ¥153883 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/35716395-plus-concrete-sealer-deep-penetrating-waterproofing-for-basement-floors-foundation)

## 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

- • **Invisible yet Invincible:** Seals concrete pores deep inside—no surface film, no gloss, just pure protection.
- • **Moisture’s Worst Enemy:** Reduces water intrusion and moisture vapor transmission for healthier, drier basements and foundations.
- • **DIY Friendly, Pro Approved:** Easy application with sprayer, roller, or brush—perfect for savvy homeowners and pros alike.
- • **Built to Last, Not Just Cover:** Internal chemical reaction forms a durable seal that won’t peel or wear off over time.
- • **Concrete’s Strength Booster:** Densifies and hardens weak or porous concrete, improving resistance to dusting, salts, and freeze-thaw damage.

## Overview

RadonSeal Plus Concrete Sealer is a high-performance, water-based formula that penetrates deep into concrete and masonry to create a durable internal seal. Designed for basement floors, foundation walls, slabs, and concrete blocks, it reduces moisture intrusion, strengthens concrete by chemical densification, and lowers radon gas levels. Unlike surface coatings, it won’t peel or blister and leaves no visible finish, making it ideal for long-lasting waterproofing and concrete protection in residential and commercial settings.

## Description

RadonSeal Plus Concrete Sealer – Deep Penetrating Waterproofing for Basement Floors, Foundation Walls & Concrete Block – Reduces Moisture & Strengthens Concrete (5 Gallon) | Concrete Protectant that Reduces Moisture, Strengthens Slabs & Reduces Radon Gas Levels, for Basements, Garages & Driveways - desertcart.com

## Features

- DEEP-PENETRATING CONCRETE SEALER – RadonSeal Plus penetrates deep into concrete and reacts within the pore structure to seal capillaries, helping reduce water intrusion and moisture vapor transmission through basement floors and foundation walls.
- FOR BASEMENTS & FOUNDATIONS – Helps reduce moisture seepage through concrete floors and walls by penetrating and reacting within the concrete. Ideal for basement floors, foundation walls, slabs, and concrete block exposed to ground moisture.
- LONG-LASTING INTERNAL SEAL – Unlike acrylic or epoxy coatings that sit on the surface, RadonSeal reacts inside the concrete to form a durable internal seal that will not peel, blister, or wear away over time.
- STRENGTHENS & HARDENS CONCRETE – Chemically densifies and reinforces porous or weak concrete, reducing dusting and improving resistance to water intrusion, salts, and freeze-thaw cycles.
- EASY DIY APPLICATION – Apply with a sprayer, roller, or brush. The water-based formula penetrates deeply into the concrete where it reacts and cures internally, no surface coating or film.
- PAINTABLE & COATING-COMPATIBLE – Prepares concrete surfaces for coatings by helping reduce moisture movement through the substrate. Compatible with concrete paints, epoxy coatings, clear sealers, overlays, and adhesives.
- IDEAL FOR BASEMENTS & FOUNDATIONS – Suitable for basement floors, foundation walls, concrete slabs, garages, and warehouses. Works on poured concrete and concrete block (CMU) foundations.
- COVERS UP TO ~1000 SQ FT PER 5 GALLONS – Coverage varies depending on concrete porosity. Suitable for basement floors, foundation walls, slabs, and concrete block to help reduce moisture vapor transmission.
- NATURAL, INVISIBLE FINISH – Does not change the appearance of concrete. No gloss, no darkening, and no surface film.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B013P3QE1W |
| Best Sellers Rank | #180,040 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #590 in Hardware Sealers |
| Brand Name | RadonSeal |
| Color | Solid Black |
| Compatible Material | Concrete, Concrete Block, Limestone |
| Customer Reviews | 4.1 4.1 out of 5 stars (361) |
| Global Trade Identification Number | 00856255006027 |
| Included Components | Tools |
| Item Form | Liquid |
| Item Weight | 48 pounds |
| Manufacturer | Novion |
| Material Type | Blended Silicate |
| Model | 110 |
| Number of Items | 1 |
| Part Number | 110 |
| Style Name | PLUS |
| Surface Recommendation | Floors,Walls |
| Unit Count | 640 Fluid Ounces |
| Water Resistance Level | Waterproof |

## Product Details

- **Brand:** RadonSeal
- **Item Weight:** 48 pounds
- **Material:** Blended Silicate
- **Style:** PLUS
- **Water Resistance Level:** Waterproof

## Images

![Plus Concrete Sealer – Deep Penetrating Waterproofing for Basement Floors, Foundation Walls & Concrete Block – Reduces Moisture & Strengthens Concrete (5 Gallon) | Concrete Protectant that Reduces Moisture, Strengthens Slabs & Reduces Radon Gas Levels, for Basements, Garages & Driveways - Image 1](https://m.media-amazon.com/images/I/81ZrBdkqy1L.jpg)
![Plus Concrete Sealer – Deep Penetrating Waterproofing for Basement Floors, Foundation Walls & Concrete Block – Reduces Moisture & Strengthens Concrete (5 Gallon) | Concrete Protectant that Reduces Moisture, Strengthens Slabs & Reduces Radon Gas Levels, for Basements, Garages & Driveways - Image 2](https://m.media-amazon.com/images/I/61iHuujJRtL.jpg)
![Plus Concrete Sealer – Deep Penetrating Waterproofing for Basement Floors, Foundation Walls & Concrete Block – Reduces Moisture & Strengthens Concrete (5 Gallon) | Concrete Protectant that Reduces Moisture, Strengthens Slabs & Reduces Radon Gas Levels, for Basements, Garages & Driveways - Image 3](https://m.media-amazon.com/images/I/71S5fMSp36L.jpg)
![Plus Concrete Sealer – Deep Penetrating Waterproofing for Basement Floors, Foundation Walls & Concrete Block – Reduces Moisture & Strengthens Concrete (5 Gallon) | Concrete Protectant that Reduces Moisture, Strengthens Slabs & Reduces Radon Gas Levels, for Basements, Garages & Driveways - Image 4](https://m.media-amazon.com/images/I/71XPIcXXl1L.jpg)
![Plus Concrete Sealer – Deep Penetrating Waterproofing for Basement Floors, Foundation Walls & Concrete Block – Reduces Moisture & Strengthens Concrete (5 Gallon) | Concrete Protectant that Reduces Moisture, Strengthens Slabs & Reduces Radon Gas Levels, for Basements, Garages & Driveways - Image 5](https://m.media-amazon.com/images/I/713DheGmkYL.jpg)

## Questions & Answers

**Q: How is RadonSeal different from coatings or sealers?**
A: Unlike traditional coatings that sit on the surface and can peel or trap moisture, RadonSeal absrobs deep into the concrete and works below the surface. It does not form a film, allowing the concrete to remain breathable.

**Q: Can I apply paint, epoxy, or coatings over RadonSeal?**
A: Yes. When applied to a bare, porous surface, it absorbs into the concrete rather than forming a surface layer, allowing proper adhesion of paints, epoxy, levelers, and coatings.

**Q: What is the coverage rate?**
A: • Poured Concrete: 175–225 sq. ft. per gallon • Concrete Block: 100–125 sq. ft. per gallon As a general guideline, a 1,000 sq. ft. poured concrete surface requires approximately 5 gallons. A 2.5-gallon container will cover about 500 sq. ft.

**Q: Will RadonSeal stop water leaks through cracks?**
A: RadonSeal is not designed to stop active leaks through cracks, joints, or seams. These areas should be repaired using appropriate products such as CrackWeld Floor Crack Repair Kit or RadonSeal DIY Foundation Crack Repair Kit.

**Q: Can RadonSeal be applied to painted or sealed surfaces?**
A: No. RadonSeal must be absorbed through the surface to be effective. It should only be applied to clean, bare, and porous concrete.

## Frequently Bought Together

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**Shop now:** [https://www.desertcart.jp/products/35716395-plus-concrete-sealer-deep-penetrating-waterproofing-for-basement-floors-foundation](https://www.desertcart.jp/products/35716395-plus-concrete-sealer-deep-penetrating-waterproofing-for-basement-floors-foundation)

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-08-01*