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Crown Repair

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🏠 Brushable Chimney Crown Repair – Elastomeric Waterproof Coating

Seal out water. Preserve your chimney.

This fast-setting elastomeric coating forms a flexible, waterproof membrane that protects chimney crowns from cracking, leaks, and water intrusion. Designed for easy brush-on application, it cures quickly and remains permanently flexible for long-term protection.

πŸ”§ Product Features:

  • Forms a durable, waterproof barrier over chimney crowns
  • Fast-setting formula cures in 2–4 hours
  • Permanently flexible – resists cracking and deterioration
  • Environmentally friendly – solvent-free and safe for surroundings
  • Easy brush-on application – no primer or mixing required
  • Covers approximately 20 sq. ft. per container
  • Ideal for chimney crowns, corbels, parapets, and masonry sills

Perfect for sealing small cracks and surface flaws. For best results, apply two coats to a clean, dry surface using a stiff brush. Protect surrounding areas with drop cloths

SDS

 

Part #: 90100 - 1/2 Gallon
Part #: 90100 - 1/2 Gallon
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🏠 Brushable Chimney Crown Repair – Β½ Gallon Tub

Flexible, waterproof protection for chimney crowns.

This fast-setting elastomeric coating forms a durable, waterproof membrane that seals chimney crowns against water intrusion and cracking. Designed for easy brush-on application, it dries to a natural concrete/mortar color for a clean, professional finish.

πŸ”§ Product Features:

  • Β½ gallon tub – covers approximately 20 sq. ft. (2 coats on a typical 10 ft crown)
  • Dries to the touch in 30–60 minutes, cures in 2–3 hours
  • No mixing or bonding agents required – ready to use
  • Air-cure formula – paintable once dry
  • Permanently flexible – resists cracking from thermal expansion and weather exposure
  • Environmentally friendly – solvent-free and safe for surrounding surfaces
  • Dries to a natural concrete/mortar color for seamless blending

🧰 Application Instructions – Brushable Chimney Crown Repair

For best results, follow these steps to ensure proper adhesion, coverage, and long-term protection:

🧼 Surface Preparation

  • Use a wire brush to thoroughly clean the entire crown surface, removing loose debris, mold, and dirt that may interfere with adhesion
  • Apply duct tape around the perimeter of the flue tile, approximately 1″ above the crown, to create a clean edge
  • Apply another line of duct tape around the base of the crown to protect surrounding masonry
  • Fill minor cracks with exterior acrylic caulk and allow to set for 10–15 minutes until tacky

🎨 Product Application

  • Apply a thin first coat of Brushable Crown Repair using a stiff brush
  • Allow it to set for 5 minutes until tacky
  • Apply a second, heavier coat, smoothing evenly across the surface
  • In hot weather, the product may set quicklyβ€”mist the surface lightly with water using a spray bottle to ease spreading and improve workability
  • Once finished, remove duct tape for clean edges

🧽 Cleanup & Curing

  • Clean tools immediately after use with soap, water, and a stiff brush
  • Product dries to the touch in 30–60 minutes, and fully cures in 2–3 hours
  • Once cured, it is paintable and safe for exterior exposure
  • The elastomeric formula remains flexible over time, helping prevent future cracks caused by thermal expansion and weathering

 

 

🏠 Brushable Chimney Crown Repair – Elastomeric Waterproof Coating

Seal out water. Prevent cracks. Preserve your chimney.

This fast-setting elastomeric coating forms a flexible, waterproof membrane that protects chimney crowns from water intrusion, cracking, and elemental damage. Designed for easy brush-on application, it cures quickly and remains permanently flexible to prevent future cracking caused by expansion and contraction.

πŸ”§ Product Features:

  • Forms a durable, waterproof barrier over chimney crowns
  • Fast-setting formula: dries to the touch in 30–60 minutes, cures in 2–3 hours
  • Permanently flexible – resists cracking and deterioration over time
  • Environmentally friendly – solvent-free and safe for surrounding surfaces
  • Easy brush-on application – no mixing or bonding agents required
  • Covers approximately 20 sq. ft. per Β½ gallon (2 coats on a typical 10 ft crown)
  • Air-cure formula – no heat required
  • Paintable once cured

🧼 Application Tips:

  • Clean tools immediately after each use with soap, water, and a stiff brush
  • Apply in moderate weatherβ€”hot conditions may cause rapid setting and make smoothing difficult
  • To ease application in warm weather, mist the surface lightly with a spray bottle before brushing
  • As heat is applied over time, the coating will expand and flow into fastened joints, forming a homogeneous gasket

Perfect for sealing small cracks and surface flaws, this product helps extend the life of your chimney while reducing costly repairs.