File:Fse-intumescent-material-v1.svg

Fse-intumescent-material-v1.svg (SVG file, nominally 900 × 600 pixels, file size: 7 KB)

Summary

An intumescent coating before heating (left) and after swelling into an insulating crust with cavities (right). Based on Iqbal and Salley (2004), pp. 17-10 and F-39.

Original vector illustration for Intumescent material, level 2 Intermediate.

Source basis: Iqbal and Salley (2004), p. F-39 (definition: gases generated internally, expansion, thermally insulating crust with cavities) and p. 17-10 (swells to many times installed thickness, insulation barrier for structural steel); Van Rossum (2027), §5.2 (swelling gives insulating properties)
Alt text: Steel flange with a thin coating before a fire, and the same flange under a thick porous char layer during a fire, with heat arrows reduced.

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New drawing by Fire Safety Academy. © Fire Safety Academy.

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	Date/Time	Thumbnail	Dimensions	User	Comment
current	17:17, 2 November 2026		900 × 600 (7 KB)	Lisa (talk \| contribs)	Watermark: Fire Safety Academy logo icon, 70 px, 45 % opacity

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Intumescent material

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Short title	An intumescent coating before heating (left) and after swelling into an insulating crust with cavities (right). Based on Iqbal and Salley (2004), pp. 17-10 and F-39.
Image title	Steel flange with a thin coating before a fire, and the same flange under a thick porous char layer during a fire, with heat arrows reduced. Source basis: Iqbal and Salley (2004), p. F-39 (definition: gases generated internally, expansion, thermally insulating crust with cavities) and p. 17-10 (swells to many times installed thickness, insulation barrier for structural steel); Van Rossum (2027), §5.2 (swelling gives insulating properties)
Width	900
Height	600