When a hydrocarbon fire takes hold, unprotected structural steel loses strength in minutes. Passive fire protection exists to buy time: time for people to evacuate, for shutdown systems to act, for the fire team to respond. In process plants, epoxy intumescent coatings have become the reference technology for that job.
How an epoxy intumescent works
At fire temperatures the coating reacts and swells into a thick insulating char, many times its applied thickness, slowing the temperature rise of the steel beneath. Products in this class, such as the Chartek range we supply, are tested against hydrocarbon fire curves including pool fire and jet fire scenarios, which rise far faster than the cellulosic curve used for buildings.
Epoxy versus cementitious
Cementitious fireproofing is cheaper per square metre and still common on older UAE plants. Its weaknesses are weight, cracking, and the gap that opens against the steel where water then drives corrosion under fireproofing, a cousin of CUI that inspection teams know well. Epoxy intumescents bond directly to blasted, primed steel, add corrosion protection instead of hiding corrosion, and survive weather and vibration better. On offshore and coastal assets they are the default.
Specification points that matter
Fire scenario and rating period come first: pool fire versus jet fire, and the minutes of protection required, set the product and thickness from certified assessments. Application is by specialist crews over Sa 2.5 blasted steel with compatible primers, with mesh reinforcement where the assessment requires it. Thickness verification and cure records form part of the handover dossier.
MENA Industrial Supplies quotes epoxy intumescent systems and thin film intumescents for buildings from Dubai. Specification reviews turn around within one working day via the oil and gas coatings page.