--- product_id: 77749762 title: "ChimneySaver All Weather CrownCoat Brushable Sealant – Freeze-Cure to -40°F Chimney Crown Sealer & Elastomeric Waterproof Coating - Brush-On Crown Crack & Leak Repair & Prevention - 1 Gallon" brand: "chimneysaver" price: "$439.87" currency: USD in_stock: true category: "Chimney Saver" url: https://www.desertcart.us/products/77749762-chimneysaver-all-weather-crowncoat-brushable-sealant-freeze-cure-to-40 store_origin: US region: United States of America --- # Freeze-Cure to -40°F Brush-on, no mixing needed 10-year waterproof warranty ChimneySaver All Weather CrownCoat Brushable Sealant – Freeze-Cure to -40°F Chimney Crown Sealer & Elastomeric Waterproof Coating - Brush-On Crown Crack & Leak Repair & Prevention - 1 Gallon **Brand:** chimneysaver **Price:** $439.87 **Availability:** ✅ In Stock ## Summary > 🛠️ Seal the chill, save the thrill — protect your chimney like a pro! ## Quick Answers - **What is this?** ChimneySaver All Weather CrownCoat Brushable Sealant – Freeze-Cure to -40°F Chimney Crown Sealer & Elastomeric Waterproof Coating - Brush-On Crown Crack & Leak Repair & Prevention - 1 Gallon by chimneysaver - **How much does it cost?** $439.87 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/77749762-chimneysaver-all-weather-crowncoat-brushable-sealant-freeze-cure-to-40) ## Best For - chimneysaver enthusiasts ## Why This Product - Trusted chimneysaver brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Custom Tinting:** Easily tint with mortar dye to seamlessly blend repairs with your existing masonry aesthetic. - • **Long-Lasting Defense:** Forms a durable elastomeric membrane that resists cracks, leaks, and weather damage backed by a decade-long warranty. - • **Effortless Application:** Brush on directly—no primers or mixing—making professional-grade sealing accessible to every DIYer. - • **Freeze-Proof Flexibility:** Cures and stays flexible even in brutal -40°F winters, ensuring year-round chimney protection. - • **Broad Surface Compatibility:** Perfect for chimney crowns, corbels, parapets, and masonry sills—versatile protection wherever you need it. ## Overview ChimneySaver All Weather CrownCoat is a premium elastomeric sealant designed to protect chimney crowns and masonry surfaces from cracks, leaks, and harsh weather damage. Featuring innovative Freeze-Cure technology, it cures flexibly down to -40°F, ensuring reliable waterproofing even in extreme cold. Easy to apply with a brush and tintable for a perfect color match, this solvent-free sealant covers approximately 28 sq. ft. per gallon and is backed by a 10-year warranty, making it a must-have for durable, professional-grade chimney maintenance. ## Description ChimneySaver Cold Weather CrownCoat is a flexible, elastomeric crowncoat brushable sealant designed for chimney crown repair and to protect chimney crowns from moisture damage. It forms a durable waterproof membrane that prevents leaks, cracking, and long-term deterioration. This brushable crown repair sealer seals hairline cracks and surface flaws while staying permanently flexible without cracking or chipping. No mixing or bonding agents are needed. Easy to apply with a 3″ or 4″ brush, Cold Weather CrownCoat can be applied at varying thicknesses and dries to a natural finish. No primer required, just apply two coats for lasting protection. It can be custom tinted with standard mortar dye to blend with existing masonry. Ideal for chimney crowns, corbels, parapets, and masonry sills, This sealant is one of the must-have chimney repair products. Ensure the surface is clean and dry, remove loose debris with a stiff brush, and protect nearby areas with drop cloths. Avoid applying below -40°F or if temps drop below 40°F within 24 hours. Each gallon covers approx. 28 sq. ft., depending on thickness. Curing time varies by temperature: about 4 hours above 40°F, up to 24 hours near freezing, and about 4 hours in temps down to -40°F, thanks to Freeze-Cure technology. This solvent-free formula won’t harm the environment and is backed by a 10-year warranty. ## Features - BUILT FOR HARSH WINTERS: Freeze-Cure technology allows this elastomeric waterproof sealant to cure in temperatures as low as -40°F, forming a flexible waterproof membrane; this chimney sealant protects crowns from leaks, cracks, and long-term damage - FLEXIBLE CHIMNEY REPAIR SEALER: This chimney sealer is perfect for sealing hairline cracks and surface flaws in chimney crowns; it stays flexible, won’t crack or chip, and needs no mixing or bonding agents; not for gaps or cracks larger than 1/4" - EASY TO APPLY: Our waterproofing sealant works on chimney crowns, corbels, parapets & masonry sill; no primer or mixing needed, just brush on with a 3–4" brush; can be tinted with mortar dye, solvent-free formula won’t harm the environment - PREPARATION: Our crown repair sealer is tintable, transfer to a clean container, add mortar dye a few drops, & mix well; ensure surface is clean and dry; remove loose debris with a stiff brush; protect nearby areas with drop cloths - DRY TIME & COVERAGE: This waterproof coating sealant covers about 28 sq. ft. per gallon, depending on thickness; it cures in about 4 hours above 40°F, 24 hours between 40°F and 32°F, and 4 hours from 32°F down to -40°F, backed by a 10 year warranty ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B003KVBNB6 | | Best Sellers Rank | #348,489 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #255 in Rain Barrels | | Brand Name | ChimneySaver | | Color | White | | Compatible Material | Concrete, Stone, Brick | | Customer Reviews | 4.5 4.5 out of 5 stars (65) | | Global Trade Identification Number | 00709057741019 | | Item Form | Liquid, Paste | | Item Weight | 0.01 Ounces | | Manufacturer | SaverSystems | | Material Type | Elastomeric Silicone | | Model | 300039 | | Part Number | 300039 | | UPC | 709057741019 633210537327 | | Unit Count | 128.0 Fluid Ounces | | Water Resistance Level | Waterproof | ## Product Details - **Brand:** ChimneySaver - **Item Form:** Liquid, Paste - **Item Weight:** 0.01 Ounces - **Material:** Elastomeric Silicone - **Water Resistance Level:** Waterproof ## Images ![ChimneySaver All Weather CrownCoat Brushable Sealant – Freeze-Cure to -40°F Chimney Crown Sealer & Elastomeric Waterproof Coating - Brush-On Crown Crack & Leak Repair & Prevention - 1 Gallon - Image 1](https://m.media-amazon.com/images/I/61u+ZOHKeiL.jpg) ![ChimneySaver All Weather CrownCoat Brushable Sealant – Freeze-Cure to -40°F Chimney Crown Sealer & Elastomeric Waterproof Coating - Brush-On Crown Crack & Leak Repair & Prevention - 1 Gallon - Image 2](https://m.media-amazon.com/images/I/71hdzRH-mrL.jpg) ![ChimneySaver All Weather CrownCoat Brushable Sealant – Freeze-Cure to -40°F Chimney Crown Sealer & Elastomeric Waterproof Coating - Brush-On Crown Crack & Leak Repair & Prevention - 1 Gallon - Image 3](https://m.media-amazon.com/images/I/718VdnzbPwL.jpg) ![ChimneySaver All Weather CrownCoat Brushable Sealant – Freeze-Cure to -40°F Chimney Crown Sealer & Elastomeric Waterproof Coating - Brush-On Crown Crack & Leak Repair & Prevention - 1 Gallon - Image 4](https://m.media-amazon.com/images/I/81ION3XzqfL.jpg) ![ChimneySaver All Weather CrownCoat Brushable Sealant – Freeze-Cure to -40°F Chimney Crown Sealer & Elastomeric Waterproof Coating - Brush-On Crown Crack & Leak Repair & Prevention - 1 Gallon - Image 5](https://m.media-amazon.com/images/I/71ZQ7h9wcSL.jpg) --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.us/products/77749762-chimneysaver-all-weather-crowncoat-brushable-sealant-freeze-cure-to-40](https://www.desertcart.us/products/77749762-chimneysaver-all-weather-crowncoat-brushable-sealant-freeze-cure-to-40) --- *Product available on Desertcart United States of America* *Store origin: US* *Last updated: 2026-07-13*