Intumescent coatings provide passive fire protection for structural steelwork — expanding when exposed to heat to create an insulating char that delays the rise in steel temperature and maintains structural integrity during a fire.
What Is an Intumescent Coating?
An intumescent coating is a paint system that expands (intumesces) when exposed to heat above approximately 200°C. The expansion creates a carbonaceous foam that insulates the steel, slowing the rate of temperature rise and extending the time before the steel reaches its critical temperature.
Intumescent coatings are used as an alternative to passive fire protection systems (vermiculite board, mineral wool) where an exposed steel aesthetic is required.
Where We Apply Intumescent Coatings
New build structural steelwork — applied as part of the steel fabrication and erection programme.
Refurbishment projects — recoating of existing steel where original fire protection has been damaged or where fire protection requirements have changed.
Exposed structural elements — where architectural steelwork is required to be fire protected without concealing the steel.
Products and Certification
We apply third-party certified intumescent coating systems from major manufacturers. All systems are applied in accordance with manufacturer specifications and carry appropriate certification.
Accreditations
Constructionline Gold. CHAS. Full public liability insurance.
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