---
product_id: 18312922
title: "ChimneyRx 300014 Brushable Chimney Crown Repair – Elastomeric & Waterproof Coating for Crowns & Masonry - Fast-Setting & Long-Lasting Protection Crack & Leak Prevention - 2 Gallon"
brand: "chimneyrx"
price: "€ 533.28"
currency: EUR
in_stock: true
reviews_count: 8
category: "Chimneyrx"
url: https://www.desertcart.gr/products/18312922-chimneyrx-300014-brushable-chimney-crown-repair-elastomeric-and-waterproof-coating
store_origin: GR
region: Greece
---

# Elastomeric waterproof membrane Fast 2-4 hour cure time Brush-on, no primer needed ChimneyRx 300014 Brushable Chimney Crown Repair – Elastomeric & Waterproof Coating for Crowns & Masonry - Fast-Setting & Long-Lasting Protection Crack & Leak Prevention - 2 Gallon

**Brand:** chimneyrx
**Price:** € 533.28
**Availability:** ✅ In Stock

## Summary

> 🛠️ Seal smart, stay dry — the ultimate crown protector for your chimney!

## Quick Answers

- **What is this?** ChimneyRx 300014 Brushable Chimney Crown Repair – Elastomeric & Waterproof Coating for Crowns & Masonry - Fast-Setting & Long-Lasting Protection Crack & Leak Prevention - 2 Gallon by chimneyrx
- **How much does it cost?** € 533.28 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.gr](https://www.desertcart.gr/products/18312922-chimneyrx-300014-brushable-chimney-crown-repair-elastomeric-and-waterproof-coating)

## Best For

- chimneyrx enthusiasts

## Why This Product

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

## Key Features

- • **Quick-Dry Efficiency:** Cures in just 2-4 hours, letting you get back to your day without long wait times.
- • **Effortless Application:** Brush on two coats—no mixing, no primer, no hassle—perfect for busy pros and DIYers alike.
- • **Versatile Masonry Armor:** Ideal for chimney crowns, corbels, parapets, and masonry sills, blending seamlessly with tinted mortar dye.
- • **Long-Lasting Leak Prevention:** Durable resin formula resists cracking and chipping, ensuring your chimney stays protected season after season.
- • **Seal & Shield with Confidence:** Creates a flexible, crack-resistant waterproof barrier that protects chimney crowns from leaks and deterioration.

## Overview

ChimneyRx 300014 is a 2-gallon elastomeric, brushable chimney crown repair coating designed to create a flexible, waterproof membrane that prevents leaks and cracks. It cures quickly within 2-4 hours, covers approximately 40 sq ft per gallon, and requires no primer or mixing. Perfect for masonry surfaces, it offers long-lasting protection against water intrusion and deterioration, making it a trusted choice for durable chimney maintenance.

## Description

Buy ChimneyRx 300014 Brushable Chimney Crown Repair – Elastomeric & Waterproof Coating for Crowns & Masonry - Fast-Setting & Long-Lasting Protection Crack & Leak Prevention - 2 Gallon: Paint, Wall Treatments & Supplies - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

Review: Get this ! - Excellent! Easy to apply and stopped leak
Review: Easy application, solid product. - Easy application. Cures quickly and makes a solid continuous seal along the cap. First coat paints on like paint to ensure all cracks and crevices are filled. Short time later it tacks up to allow for a heavier finish coat. I actually put 3 coats on my chimney cap and still had product left over. If it holds up well this would be a very recommended product.

## Features

- ELASTOMERIC WATERPROOF SEALANT: Creates a durable, flexible waterproof membrane that seals and protects chimney crowns from water intrusion; this chimney sealant prevents leaks, cracking, and deterioration, ensuring long-lasting protection
- FLEXIBLE CHIMNEY REPAIR SEALER: Perfect for sealing small cracks and surface flaws in chimney crowns; this long-lasting, flexible sealer won’t crack or chip over time and requires no mixing or special bonding agents; not for gaps or cracks over ¼”
- VERSATILE & EASY TO APPLY: Ideal for chimney crowns, corbels, parapets, and masonry sills; no primer needed, just brush on two coats of this waterproofing sealant for a strong, weatherproof barrier; can be tinted with mortar dye for a seamless look
- SURFACE PREPARATION: Ensure the surface is clean and dry; use a stiff poly or wire brush to remove loose particles; protect the roof with drop cloths to prevent spills; this chimney crown sealer is solvent-free and safe for the surroundings
- DRY TIME & COVERAGE: This waterproof coating sealant cures in 2-4 hours, depending on temperature and humidity; it covers about 40 square feet per gallon

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B004XJYJBA |
| Best Sellers Rank | #327,391 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #1,671 in Household Finishes, Sealers & Stains |
| Brand | CHIMNEYRX |
| Brand Name | CHIMNEYRX |
| Compatible Material | Concrete" Or "Masonry |
| Customer Reviews | 4.8 out of 5 stars 1,237 Reviews |
| Item Dimensions | 10 x 10 x 10 inches |
| Item Form | Paste |
| Item dimensions L x W x H | 10 x 10 x 10 inches |
| Manufacturer | SaverSystems |
| Material | Resin |
| Material Type | Resin |
| Model | CECOMINOD084386 |
| Number of Items | 1 |
| Number of Packs | 1 |
| Part Number | 300015 |
| Style | Compact |
| Style Name | Compact |
| Surface Recommendation | Wall |
| UPC | 709057920025 |
| Unit Count | 1 Count |
| Water Resistance Level | Waterproof |

## Product Details

- **Brand:** CHIMNEYRX
- **Item dimensions L x W x H:** 10 x 10 x 10 inches
- **Material:** Resin
- **Style:** Compact
- **Water Resistance Level:** Waterproof

## Images

![ChimneyRx 300014 Brushable Chimney Crown Repair – Elastomeric & Waterproof Coating for Crowns & Masonry - Fast-Setting & Long-Lasting Protection Crack & Leak Prevention - 2 Gallon - Image 1](https://m.media-amazon.com/images/I/61fMEGk2dRL.jpg)

## Available Options

This product comes in different **Size** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Get this !
*by B***B on September 18, 2026*

Excellent! Easy to apply and stopped leak

### ⭐⭐⭐⭐⭐ Easy application, solid product.
*by M***K on July 20, 2026*

Easy application. Cures quickly and makes a solid continuous seal along the cap. First coat paints on like paint to ensure all cracks and crevices are filled. Short time later it tacks up to allow for a heavier finish coat. I actually put 3 coats on my chimney cap and still had product left over. If it holds up well this would be a very recommended product.

### ⭐⭐⭐⭐⭐ Works better to do it yourself
*by C***G on November 26, 2018*

My chimney crown developed cracks that allowed moisture to saturate the bricks over the fireplace. The latest professional fix was annoying and expensive, so I bought this stuff and my son got up there and did the job this time. So far so good. In the past when I was able I'd gotten on the roof myself and filled the obvious cracks, but wasn't using the proper product and years later it had hardened and wasn't filling the cracks properly anymore. I called a professional. He did a good job that lasted 8 years, but at an outlandish price so I wasn't eager to call him again. The highly rated firm I called instead offered a better price (still $300), but had scheduling issues that dragged the effort out so long my ceiling got wet too and was in danger of falling in. Their first fix improved the problem but didn't fix it entirely so they had to come back and after 3 years the problem reappeared. After the bad experiences I was more interested in seeing if we couldn't do a better job ourselves. This product is very thick and grainy. It's cement colored so works well on the chimney crown. It doesn't drip so it's easy to control application. We used an inexpensive brush and just threw it out afterward to avoid messy cleanup. If such a product was used by the second professional, it was obvious it had been thinned which probably accounted for the short correction time. My son spent about 20 minutes applying this product which he said was easy, and after recent heavy rains, we can see the leaking has stopped. There is still more product in the container so I'll tape it closed to preserve it in case we need to use it again in the future. I'm very pleased with this product. It seems expensive, but is more than enough for a thick application on a large chimney cap and does the job. The directions say the chimney cap must be dry and it must be at least 45 degrees F (but not greater than 90) and remain so while the product cures (2-4 hours). We had to choose a good weather period when it wasn't too cold here, but that is far easier if you're doing the job yourself than waiting for a service appointment only to have it wet or cold that day so rescheduling is required.

## Frequently Bought Together

- ChimneyRx 300014 Brushable Chimney Crown Repair – Elastomeric & Waterproof Coating for Crowns & Masonry - Fast-Setting & Long-Lasting Protection Crack & Leak Prevention - 2 Gallon
- ChimneyRx 300119 Masonry Chimney Water Repellent - Siloxane Based, Non-Film-Forming, Breathable, and Transparent Waterproof Coating for Brick Chimneys & Other Vertical Surfaces - 1 Gallon
- ChimneyRx 300054 Brushable Chimney Flashing Repair Sealant – Black Elastomeric Waterproof Coating Leak Protection for Chimneys, Vents & Skylights - Bonds to Shingles, Bricks, & More - 1/2 Gallon

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*Product available on Desertcart Greece*
*Store origin: GR*
*Last updated: 2026-10-21*