---
product_id: 159640389
title: "Chimney Brick Sealer, Clear Water-Based Siloxane Sealer - Breathable Waterproofer For All Exterior, Vertical Masonry Surfaces - 1 Gal"
brand: "masonrydefender"
price: "58723 Ft"
currency: HUF
in_stock: true
reviews_count: 12
category: "Masonry Defender"
url: https://www.desertcart.hu/products/159640389-chimney-brick-sealer-clear-water-based-siloxane-sealer-breathable-waterproofer
store_origin: HU
region: Hungary
---

# Breathable water repellent Fast drying & curing Permanent masonry bond Chimney Brick Sealer, Clear Water-Based Siloxane Sealer - Breathable Waterproofer For All Exterior, Vertical Masonry Surfaces - 1 Gal

**Brand:** masonrydefender
**Price:** 58723 Ft
**Availability:** ✅ In Stock

## Summary

> 🧱 Seal smart, protect forever — your chimney’s invisible armor!

## Quick Answers

- **What is this?** Chimney Brick Sealer, Clear Water-Based Siloxane Sealer - Breathable Waterproofer For All Exterior, Vertical Masonry Surfaces - 1 Gal by masonrydefender
- **How much does it cost?** 58723 Ft with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hu](https://www.desertcart.hu/products/159640389-chimney-brick-sealer-clear-water-based-siloxane-sealer-breathable-waterproofer)

## Best For

- masonrydefender enthusiasts

## Why This Product

- Trusted masonrydefender brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Effortless Application:** Water-based and VOC compliant formula cleans up easily and applies smoothly with a pump sprayer.
- • **Rapid Dry & Strengthen:** Dries to touch within 2-6 hours and fully waterproofs in under 6 hours, strengthening over weeks for lasting protection.
- • **Enduring Masonry Shield:** Creates a permanent, invisible barrier that protects your chimney from moisture and freeze/thaw damage.
- • **Breathable Waterproofing:** Allows trapped moisture to escape, preventing cracks and leaks without altering your brick’s natural look.
- • **Wide Coverage Efficiency:** Covers up to 150 sq. ft. per gallon with just two coats, saving time and money on maintenance.

## Overview

SaverSystems’ Chimney Brick Sealer is a clear, water-based siloxane formula designed for all vertical masonry surfaces. It forms a permanent, breathable waterproof barrier that prevents water intrusion and freeze/thaw damage without changing surface appearance. Easy to apply and VOC compliant, it covers 80-150 sq. ft. per gallon, dries quickly, and strengthens over time for long-lasting exterior protection.

## Description

MasonryDefender Chimney Brick Sealer, Clear Water-Based Siloxane Sealer - Breathable Waterproofer For All Exterior, Vertical Masonry Surfaces - 1 Gal: desertcart.com: Tools & Home Improvement

Review: Brick sealer - Easy to apply to chimney brick, good water repellency. I would buy this again.
Review: Stopped the leaks inside, and outside a three foot soffit overhang around the chimney - Our house is mid century modern stone home with the chimney going perpendicular into the house about 20 feet. There are 5 flues. After buying the home about 13 years ago, there were slight leaks around the fireplace ceiling after a good rain. It gradually got worse over time that developed into water running down into the living room across the ceiling. I mean alot of water. When entering the front door, there is about 6 feet of chimney outside the entrance (under roof). I started wondering why this stone would be soaked with water after rain. Did my research and learned that stone can act like a sponge. I used this product about 6 years ago and have not had a drop of water since. Stone at entrance is dry as a bone even after heavy rains. Still working great but reapplying. Just to be safe.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07VB57QLM |
| ASIN  | B07VB57QLM |
| Best Sellers Rank | #66,637 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #169 in Hardware Sealers |
| Brand | MasonryDefender |
| Color | clear |
| Customer Reviews | 4.5 4.5 out of 5 stars (453) |
| Date First Available | July 16, 2019 |
| Date First Available  | July 16, 2019 |
| Item Form | Liquid |
| Item Weight | 8.91 pounds |
| Manufacturer | SaverSystems |
| Manufacturer  | SaverSystems |
| Material | Siloxane |
| Number of Items | 1 |
| Package Dimensions | 11.73 x 7.68 x 1.65 inches |
| Package Dimensions  | 11.73 x 7.68 x 1.65 inches; 8.93 Pounds |
| Style | Compact |
| Surface Recommendation | Wall |
| UPC | 709057000857 |
| Unit Count | 128.0 Fluid Ounces |
| Water Resistance Level | Water Repellent |

## Product Details

- **Brand:** MasonryDefender
- **Item Form:** Liquid
- **Material:** Siloxane
- **Style:** Compact
- **Water Resistance Level:** Water Repellent

## Images

![Chimney Brick Sealer, Clear Water-Based Siloxane Sealer - Breathable Waterproofer For All Exterior, Vertical Masonry Surfaces - 1 Gal - Image 1](https://m.media-amazon.com/images/I/61ySwqu4HpL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Brick sealer
*by S***P on March 16, 2025*

Easy to apply to chimney brick, good water repellency. I would buy this again.

### ⭐⭐⭐⭐⭐ Stopped the leaks inside, and outside a three foot soffit overhang around the chimney
*by D***R on February 16, 2025*

Our house is mid century modern stone home with the chimney going perpendicular into the house about 20 feet. There are 5 flues. After buying the home about 13 years ago, there were slight leaks around the fireplace ceiling after a good rain. It gradually got worse over time that developed into water running down into the living room across the ceiling. I mean alot of water. When entering the front door, there is about 6 feet of chimney outside the entrance (under roof). I started wondering why this stone would be soaked with water after rain. Did my research and learned that stone can act like a sponge. I used this product about 6 years ago and have not had a drop of water since. Stone at entrance is dry as a bone even after heavy rains. Still working great but reapplying. Just to be safe.

### ⭐⭐⭐⭐ Easy to apply
*by I***Y on November 2, 2025*

Sprayed my chimney brick and grout. Make sure you scrape off any crud before applying. Too soon to tell if it works

## Frequently Bought Together

- MasonryDefender Chimney Brick Sealer, Clear Water-Based Siloxane Sealer - Breathable Waterproofer for All Exterior, Vertical Masonry Surfaces - 1 Gal
- MasonryDefender Chimney Crown Sealer - Brushable Sealant Fixes Cracked Chimney Tops & Prevents Chimney Leaks
- MasonryDefender Chimney Flashing Sealer - Flexible Coating That Protects Chimney Flashings from Water Leaks

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**Shop now:** [https://www.desertcart.hu/products/159640389-chimney-brick-sealer-clear-water-based-siloxane-sealer-breathable-waterproofer](https://www.desertcart.hu/products/159640389-chimney-brick-sealer-clear-water-based-siloxane-sealer-breathable-waterproofer)

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*Product available on Desertcart Hungary*
*Store origin: HU*
*Last updated: 2026-01-27*