Made from a mixture of cement or gypsum, plus other materials like sand that act as an aggregate, cementitious fireproofing products offer strength and durability reminiscent of concrete while being light enough to spray into place. Installed in several layers, cementitious fireproofing provides an extremely heat-resistant coating to beams, columns and other structural steel elements.

Lightweight And Long-Lasting
While it is very strong, cementitious fireproofing can crack with expansion and contraction, similar to concrete. In addition, it is porous, and the space between the coating and the steel structure can provide a place for moisture to collect. This makes cementitious fireproofing best for use in indoor spaces, where water will be less of an issue. For moisture-prone areas, intumescent coatings may be the better choice.