---
product_id: 228360427
title: "Chimney Crown Sealer"
brand: "masonrydefender"
price: "R$1060"
currency: BRL
in_stock: null
reviews_count: 13
category: "Masonry Defender"
url: https://www.desertcart.com.br/products/228360427-chimney-crown-sealer
store_origin: BR
region: Brazil
---

# 100% waterproof elastomeric membrane Dries to touch in 30-60 mins Brush-on, no primer needed Chimney Crown Sealer

**Brand:** masonrydefender
**Price:** R$1060
**Availability:** ❌ Out of Stock

## Summary

> 🛡️ Seal the deal: Keep your chimney leak-proof and storm-ready with zero stress!

## Quick Answers

- **What is this?** Chimney Crown Sealer by masonrydefender
- **How much does it cost?** R$1060 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.com.br](https://www.desertcart.com.br/products/228360427-chimney-crown-sealer)

## 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

- • **Optimized Coverage:** Covers up to 20 sq. ft. per ½ gallon, perfect for professional-grade repairs without waste.
- • **Quick-Dry Efficiency:** Touch dry in under an hour and fully cured in 2-4 hours—get back to your day faster.
- • **Effortless Application:** Brush on two coats directly—no primers or pre-coats required, saving you time and hassle.
- • **Flexible Waterproof Shield:** Elastomeric polymer forms a durable, crack-resistant barrier that flexes with your chimney.
- • **Long-Lasting Leak Protection:** Stops water intrusion and resists chipping for years of reliable chimney crown defense.

## Overview

MasonryDefender Chimney Crown Sealer is a brushable, elastomeric waterproof sealant designed to protect masonry and concrete chimney crowns from leaks. It forms a flexible, durable membrane that resists cracking and chipping, dries quickly within 30-60 minutes, and covers up to 20 sq. ft. per half gallon. Easy to apply with no primer needed, it offers long-lasting protection against water damage and weathering.

## Description

MasonryDefender Chimney Crown Sealer - Brushable Waterproof Sealant Prevents Leaks - 1/2 Gallon: desertcart.com: Tools & Home Improvement

Review: Gave My Chimney a Spa Day — Now It’s Smug, Sealed, and Storm-Proof for Years - My chimney used to leak like it was emotionally unstable. Rainstorms? Cue the buckets. Snow? Instant anxiety. Then I found this crown sealer — thick, brushable, and clingy in a way that actually helps your relationship with your roof. It spreads on like frosting, fills every crack like it’s got a grudge against moisture, and dries into a rock-solid barrier that laughs in the face of rain, snow, sleet, and freeze-thaw drama. Application was surprisingly easy — just grab a brush and channel your inner Bob Ross. Took me less than an hour and I didn’t even have to Google “how to fix a chimney leak” afterward. Weeks later, storms rolled through and… nothing. Dry as a dad joke in the desert. If your chimney is crying for help, this is the therapy it needs — easy to apply, built to last, and tough enough to survive whatever the sky throws at it.
Review: Prep well and succeed - While long term results can't be guaranteed, initial impressions are very good. As long as you prepare the surface correctly, this stuff will stick well. One negative review I saw showed the product had been applied to a very dirty surface. Just like painting, surface prep is one of the most important steps in the process. As well as a chimney cap, it was applied to the top of a small retaining wall along our driveway and looks a lot better than bare concrete.

## Features

- ELASTOMERIC WATERPROOFING SEALANT: Forms a flexible, waterproof membrane to protect masonry or concrete chimney crowns. Stops water leaks fast and is designed for long-lasting durability.
- FLEXIBLE CHIMNEY REPAIR SEALER: Ideal for minor cracks and imperfections on chimney crowns. This chimney crack sealer remains flexible and resists chipping or cracking for years of protection.
- EASY BRUSH APPLICATION: No primers or pre-coats needed. Simply brush on two coats of this brushable chimney crown sealer for superior waterproofing, saving time and effort during repairs.
- SURFACE PREPARATION TIPS: Ensure the chimney crown is clean, dry, and structurally sound before applying. Use a stiff brush to remove debris and protect the roof with drop cloths during application.
- FAST DRY TIME & COVERAGE: Covers up to 20 sq. ft. per 1/2 gal. with two coats, depending on surface texture. Dries to the touch in 30–60 minutes and fully cures in 2–4 hours for quick results.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B08F7ZKG7H |
| Best Sellers Rank | #64,129 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #155 in Hardware Sealers |
| Brand | MasonryDefender |
| Color | Light Gray |
| Date First Available | August 4, 2020 |
| Item Form | Paste |
| Item Weight | 5.48 pounds |
| Manufacturer | SaverSystems |
| Material | Elastomeric polymer |
| Number of Items | 1 |
| Package Dimensions | 6.61 x 6.5 x 5 inches |
| Style | Compact |
| Surface Recommendation | Chimney Crown (Concrete) |
| UPC | 709057000918 |
| Water Resistance Level | Waterproof |

## Product Details

- **Brand:** MasonryDefender
- **Item Form:** Paste
- **Material:** Elastomeric polymer
- **Style:** Compact
- **Water Resistance Level:** Waterproof

## Images

![Chimney Crown Sealer - Image 1](https://m.media-amazon.com/images/I/414vLfzW3IL.jpg)
![Chimney Crown Sealer - Image 2](https://m.media-amazon.com/images/I/41DAB4ppiyL.jpg)
![Chimney Crown Sealer - Image 3](https://m.media-amazon.com/images/I/41GdK0osJ7L.jpg)
![Chimney Crown Sealer - Image 4](https://m.media-amazon.com/images/I/41R5g-eEueL.jpg)
![Chimney Crown Sealer - Image 5](https://m.media-amazon.com/images/I/41xy3fFLlOL.jpg)

## Questions & Answers

**Q: Is this ok to be left out in freezing temperatures overnight before application?**
A: probably not, and is not recommended in the application specifications either. 
Read the specification sheet for the product on the amozon site or on the product site.
I will say the product was VERY easy too use.

**Q: Should I seal up larger cracks before or after applying this?**
A: I would suggest sealing the crack before applying the final top coat of this product. I did that let the sealed crack dry and then did an overall coating with this. Came out great.

**Q: How long will this last on my chimney crown? Can you be more specific than just “years”? (Other products say 15 years.)**
A: couldn't tell you, ask me in 15 years.

**Q: what is the warranty by the manufacturer?**
A: Description says 5 years

## Customer Reviews

### ⭐⭐⭐⭐⭐ Gave My Chimney a Spa Day — Now It’s Smug, Sealed, and Storm-Proof for Years
*by A***. on May 8, 2025*

My chimney used to leak like it was emotionally unstable. Rainstorms? Cue the buckets. Snow? Instant anxiety. Then I found this crown sealer — thick, brushable, and clingy in a way that actually helps your relationship with your roof. It spreads on like frosting, fills every crack like it’s got a grudge against moisture, and dries into a rock-solid barrier that laughs in the face of rain, snow, sleet, and freeze-thaw drama. Application was surprisingly easy — just grab a brush and channel your inner Bob Ross. Took me less than an hour and I didn’t even have to Google “how to fix a chimney leak” afterward. Weeks later, storms rolled through and… nothing. Dry as a dad joke in the desert. If your chimney is crying for help, this is the therapy it needs — easy to apply, built to last, and tough enough to survive whatever the sky throws at it.

### ⭐⭐⭐⭐⭐ Prep well and succeed
*by I***S on September 15, 2025*

While long term results can't be guaranteed, initial impressions are very good. As long as you prepare the surface correctly, this stuff will stick well. One negative review I saw showed the product had been applied to a very dirty surface. Just like painting, surface prep is one of the most important steps in the process. As well as a chimney cap, it was applied to the top of a small retaining wall along our driveway and looks a lot better than bare concrete.

### ⭐⭐⭐⭐⭐ Easy application
*by C***I on December 19, 2025*

Easy application and great value.

## Frequently Bought Together

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

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**Shop now:** [https://www.desertcart.com.br/products/228360427-chimney-crown-sealer](https://www.desertcart.com.br/products/228360427-chimney-crown-sealer)

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*Product available on Desertcart Brazil*
*Store origin: BR*
*Last updated: 2026-01-25*