Intumescent products are made of a series of chemicals suspended in a binder. When the binder is exposed to heat it begins to soften, which allows the suspended chemicals to the heat. The chemicals begin to react, which releases vapors that create a foam.
How long does intumescent paint take to dry?
Depending on the thickness of the coats applied and the air temperature and humidity, each coat will take approximately one to two hours to dry.
Can you get fire retardant paint?
Fire retardant paint is designed to stop spreading the flame and fire over a given surface by releasing a flame dampening gas once the paint becomes hot. It is suitable for both interior and exterior steel and it should be fully fire tested against British safety standards BS 476.