Withstands Extreme Heat Up to 2700°F: Built for direct flame contact. Ideal for sealing and insulating fireplaces, stoves, ovens, chimneys, and furnace joints.
Excellent Adhesion on Porous Surfaces: Sticks securely to brick, concrete, stone, and metal. No cracking or fragmentation after curing.
Fast Skin Formation & Smooth Application: Skins over in just 3 to 5 minutes. Easily shaped using a putty knife or caulk tool for clean, professional results.
Seals Gaps & Cracks in High-Heat Zones: Perfect for fireplace doors, stove pipes, flue connections, and any static joints exposed to high temperatures.
Low Odor & Indoor Safe: Low odor formula is safe for indoor use. After initial heating to 482°F, the cured sealant turns dark grey and hardens permanently.