Metacaulk BlazeSeal Fire Strip

The BlazeSeal is a flexible, pre-cured dry intumescent strip designed to provide a positive pressure seal in fire door assemblies.

Installed in door clearances, thresholds, and around hardware components such as locks and closers, BlazeSeal expands during fire exposure to help prevent the spread of hot smoke, gases, and flames.

With the ability to expand up to 18 times its original size, BlazeSeal provides superior intumescence, reliable sealing performance, and flexible installation options for a wide range of fire-rated door and frame applications.

Key Features

• Flexible, pre-cured dry intumescent strip.

• Expands up to 18 times its original size during fire exposure.

• Provides a positive pressure fire seal.

• Helps prevent the spread of flames, smoke, and hot gases.

• Ready-to-install design with no curing required.

• Reduces installation time and labor costs.

• Suitable for single and double-leaf doors.

• Can be installed around thresholds and door hardware.

• Compatible with fire-rated glass frame assemblies.

• Provides reliable performance in extended fire tests.

• Requires less material while maintaining high protection levels.

Common Applications

• Fire-rated door assemblies.

• Door-to-frame clearance sealing.

• Door thresholds.

• Around locks, closers, and other hardware.

• Fire-rated glass door and sidelite frame assemblies.

• Commercial and industrial fire door systems.

Product Variations

Frequently Asked Questions (FAQ)

Q1. What is BlazeSeal used for?
BlazeSeal is used in fire-rated door assemblies to provide a positive pressure seal that helps prevent the spread of flames, smoke, and hot gases.

Q2. How does BlazeSeal work during a fire?
The intumescent strip expands when exposed to heat, creating a protective seal that closes gaps and limits fire and smoke movement.

Q3. Where can BlazeSeal be installed?
It can be installed in door-to-frame clearances, thresholds, around hardware, and in approved fire-rated glass door frame applications.

Q4. How much does BlazeSeal expand during fire exposure?
BlazeSeal can expand up to 18 times its original size, providing a strong fire barrier.

Q5. Is BlazeSeal easy to install?
Yes. Its pre-cured dry strip design allows quick installation without mixing, curing time, or special preparation.