Paint - Intumescent (functional)
Intumescent paint is a thin film coating applied to structural steel to protect against fire.  Most intumescent coatings can be applied by spray, brush, or roller and are primarily used to achieve up to one-hour fire resistance on fully exposed steel members.  Some products can achieve up to 2-hours fire resistance on some larger section sizes.
In a fire, the intumescent coating generates a foam like char and this swelling reduces the heating rate so that the limiting temperature of the steel member is not exceeded during the required fire resistance period.
The coating thickness necessary depends on the section factor (Hp/A) and the fire rating required.

Intumescent Paint offers :

• Fast application
• Top seal coat not required in certain environments
• Decorative finish
• Easy to cover complex details
• Easy post protection fixings to steelwork, eg service hangers