Figure1

Figure 1 Intumescent coatings applied to a steel I-beam, or W-profile (left), create 
a thick char and swell to approximately 50 times their dry film thickness (DFT) in a fire (right), thereby providing protective insulation that reduces the rate of heat transfer to the steel.
Figure 1 Intumescent coatings applied to a steel I-beam, or W-profile (left), create 
a thick char and swell to approximately 50 times their dry film thickness (DFT) in a fire (right), thereby providing protective insulation that reduces the rate of heat transfer to the steel.

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