Fire types and severity
Different combustible materials burn at different temperatures which will have a bearing on the FRL of a given intumescent paint coating.
This needs to be taken into account when specifying intumescent products so that the required FRL is ensured for the combustible materials that are likely to be encountered in a particular situation.
up to 1400˚C (2552˚F)
Typical heat flux
100kW per square metre
200kW per square metre
300kW per square metre
how different fire types affect FRLs
Due to the different temperatures encountered in different types of fires FRLs will obviously be affected. This graph is a simple depiction of the expected times that a material is likely to be protected for in a particular type of fire.
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