Intumescent

Definition

Intumescent refers to fire retardant paint or coating applied to architecturally exposed steel, which swells when exposed to high heat, creating an insulating barrier.

Purpose

Intumescent coatings protect structural steel from high temperatures during a fire, helping to maintain the integrity of the structure by delaying the steel's weakening.

Examples of Use

• Applying intumescent paint to steel beams in commercial buildings to enhance fire resistance.
• Using intumescent coatings on steel columns in industrial facilities to improve fire safety.
• Protecting exposed steel structures in high-rise buildings with intumescent coatings to comply with fire safety regulations.

Related Terms

• Fire Retardant: Substances used to slow down or prevent the spread of fire.
• Passive Fire Protection: Measures that enhance the fire resistance of buildings without requiring active intervention.
• Steel Coating: Protective layers applied to steel to prevent corrosion, fire damage, and other environmental impacts.

Notes

Intumescent coatings are an important component of passive fire protection systems and must be properly applied and maintained to be effective.