27/04/2026
Calling all Architects!
Intumescent coatings are specialist fire-protective paints that expand when exposed to high temperatures. In a fire, the coating swells many times its original thickness, forming a thick, insulating char layer. This layer shields the underlying material—typically structural steel—from heat, slowing temperature rise and preventing early structural failure.
Passive Fire Protection (PFP) refers to built-in fire safety systems designed to contain or slow the spread of fire and smoke without requiring activation (unlike sprinklers or alarms). This includes intumescent coatings, fire-resistant boards, firestopping around service penetrations, fire doors, and fire-rated walls.
Why they are used:
Steel can lose around 50% of its strength at approximately 550°C. Intumescent coatings help maintain structural stability for a rated period (e.g., 30, 60, 90, or 120 minutes). That extra time:
Allows safe evacuation
Enables firefighter intervention
Reduces structural collapse risk
Limits property damage
Helps meet building code and insurance requirements
Buying time buys lives. Fire resistance ratings are designed to provide critical escape and response time when it matters most.
Who should use them:
Commercial and industrial building owners
Architects and structural engineers
Main contractors and developers
Facilities managers
Infrastructure projects (airports, hospitals, data centres, transport hubs)
Any structure where maintaining structural integrity during a fire is essential for life safety, business continuity, and compliance should incorporate passive fire protection—especially intumescent coatings on exposed structural steel.