Expandable Fireproof Metal Composite Board

Product Overview

In the field of passive fire protection, the Expandable Fireproof Metal Composite Board represents a breakthrough in structural fire safety technology. This innovative building material combines the structural strength of galvanized steel with an intumescent core that expands dramatically when exposed to high temperatures, creating a robust fire barrier that slows flame spread and heat transfer. Engineered to meet stringent fire safety standards, it provides architects, builders, and facility managers with a versatile solution for enhancing fire resistance in commercial buildings, industrial facilities, and transportation infrastructure—where every minute of fire protection can save lives and reduce property damage.

Product Parameters

Product Features

Intumescent Fire Protection

The board's core contains a proprietary water-based intumescent compound that begins expanding at 120°C (248°F), reaching its full expansion of 300-500% at temperatures above 200°C . This expansion creates a thick, insulating char layer that acts as a physical barrier to flame spread and significantly reduces heat transfer through the material . The intumescent reaction is passive, activating automatically without requiring power or human intervention during a fire event.

Structural Composite Strength

Constructed with galvanized steel facings bonded to both sides of the intumescent core, the board delivers exceptional structural integrity with a tensile strength of 280 MPa and flexural strength of 180 MPa . This composite construction allows it to maintain its shape and protective properties even when exposed to high temperatures that would cause conventional drywall or plywood to fail . The material is lightweight (6-12 kg/m² depending on thickness) while providing superior impact resistance (20 kJ/m²) compared to traditional fire-rated materials.

Versatile Installation & Compatibility

Available in thicknesses from 6 mm to 25 mm and standard panel sizes of 1220 x 2440 mm, the boards can be easily cut, drilled, and fastened using standard construction tools . They compatible with common building materials including steel studs, concrete, and wood framing, facilitating integration into new construction and retrofit projects . The galvanized steel facings accept paint, powder coating, and other finishes, allowing aesthetic customization while maintaining fire performance.

Product Applications

Commercial Building Partitions

Creates fire-rated walls and ceilings in office buildings, hotels, and healthcare facilities. Achieves 2-4 hour fire ratings for compartmentalization, slowing fire spread between building zones.

Industrial Facility Protection

Lines walls and ceilings in manufacturing plants, chemical processing facilities, and power generation stations. Protects critical infrastructure and equipment during fire events.

Transportation Infrastructure

Used in tunnels, railway stations, and airport terminals where fire safety is paramount. The low-smoke formulation enhances evacuation safety in transportation hubs.

Data Center Fire Barriers

Creates fire-resistant enclosures around server rooms and electrical distribution systems. Maintains structural integrity while protecting valuable IT equipment from heat damage.

FAQ

How does the intumescent expansion work during a fire?

The core contains thermally reactive chemicals including ammonium polyphosphate, melamine, and pentaerythritol that undergo a chemical reaction when heated above 120°C . This reaction releases non-toxic gases that expand the polymer matrix, creating a porous char layer that is 20-30 times less thermally conductive than the original material . This char physically blocks flame passage and insulates the unexposed side, keeping temperatures below 180°C for the rated fire resistance period.

What fire ratings can be achieved with different thicknesses?

6 mm boards provide 1-hour fire resistance, 12 mm boards achieve 2-hour ratings, 18 mm boards deliver 3-hour protection, and 25 mm boards offer 4-hour fire resistance when installed according to manufacturer specifications . These ratings are confirmed through ASTM E119 testing, which evaluates structural integrity and heat transfer resistance under standard fire conditions.

How does it compare to traditional fire-rated drywall?

While 5/8" Type X drywall typically provides only 1-hour fire resistance, our 12 mm composite board achieves 2-hour ratings with 60% less thickness . The metal-faced composite also maintains structural integrity better than gypsum-based products, which can crumble under heat exposure . Additionally, the expandable core provides active fire protection through expansion, whereas drywall offers only passive resistance through thickness.