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. Protect your chimney with MasonryDefender Chimney Crown Sealer, a flexible, waterproof coating designed to seal and repair chimney crowns and prevent water damage. This brushable chimney crown sealer forms a durable, elastomeric membrane that is easy to apply with a paint brush, making it ideal for both DIY homeowners and professionals. The advanced formula works as a chimney crack sealer, filling minor cracks in mortar or concrete crowns to stop leaks and extend the life of your chimney. Suitable for use as a chimney crown sealant and chimney cap sealant, this product is perfect for masonry surfaces exposed to harsh weather. The light gray, elastomeric polymer paste comes in a compact 1/2 gallon container, covering up to 20 sq. ft. with two coats. No batteries required, and the product is supplied in a convenient, ready-to-use form. Choose MasonryDefender for reliable chimney crown sealer repair and long-lasting protection for your chimney top.