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What does “intumescent” mean?

April 26, 2017intumescent mean

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What does “intumescent” mean?

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The word “intumescent” comes from the Latin verb “tumere” – to swell. In the event of a fire, intumescent coatings will swell to many times their original thickness to form an insulating char on the substrate. On wood, this char retards the spread of flame across the surface and on steel, it prolongs the time taken for the steel to reach the temperature (550°C) at which it loses its structural integrity.

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It describes what our product does. When exposed to heat, an intumescent product will expand. When our paint is exposed to heat above 375 degrees F it expands to approximately 20-100 times its normal thickness. This part of what makes our product so effective.