Steel weekens and loses its strength very quickly in a fire.

When the heat attacks the paint, a chemical reaction occurs which causes the paint to expand, forming a layer that insulates the surface (or substrate) below from the fire.

Protection times are calculated according to thickness of the metal.  As thin metal heats up and loses its strength faster than thicker metal this means that the thinner metal requires more paint.

Intumescent coating is generally applied to steel columns, RSJ’s, steel beams, steel staircases offshore construction etc.

Fire Retardant Coatings in Kent and London from Pro-tect Coatings

Steel Beams. Part of a structure intumenscent coat and topcoat finish.

Above Pics: One of 24 steel staircases, fire protected for housing development in Hackney

Intumescent Coatings Kent – Intumescent Coatings London – Intumescent Coatings Dartford – Intumescent Coatings South East – Intumescent Coatings Gravesend – Intumescent Coatings Medway – Intumescent Coatings Bexley – Intumescent Coatings Maidstone – Intumescent Coatings Tonbridge

Fire Retardant Coatings