Water Based Thin Film Intumescent Coating
This information reflects our best understanding of product composition in 2022.
Intumescent coatings swell during a fire to encase a substrate in a thick bark of char, which protects the substrate from burning. The intumescent component of the coating is commonly composed of a carbon donor, phosphorous donor, and a nitrogen...
Intumescent coatings swell during a fire to encase a substrate in a thick bark of char, which protects the substrate from burning. The intumescent component of the coating is commonly composed of a carbon donor, phosphorous donor, and a nitrogen source. It is also important to note that the intumescent additives can perform ancillary functions as well, such as stabilization, fire resistance, or filling In the case of structural steel, the concern is that the steel will weaken in the high heat of a fire, rather than burning. This CP describes water-based intumescent coatings that are site applied to structural steel, and intended for non-corrosive/non-humid environments.