Thermosetting materials in when heated usually decomposition out flammable gas, formed by the fire has certain prevent flame spreading ability carbonized layers, the carbonized depends on formula.

热固性材料在受热时通常分解出易燃气体，受火后形成具有一定的阻止火焰传播能力的炭化层，炭化程度取决于配方。

youdao

Flash fire - the combustion of a flammable gas or vapor and air mixture in which the flame propagates through that mixture in a manner such that negligible or no damaging overpressure is generated.

暴燃-可燃气体或蒸汽及空气混合物的燃烧，火焰通过混合物传播，产生了可以忽略的超压或不会造成损坏的超压。

youdao

The best fire-fighting technique is simply to shut off the flow of cryogenic liquid or vaporized gas if a flammable cryogenic liquid is involved.

如果同易燃低温液体有关，最好的救火技巧是简单地切断低温液体流或蒸发的气体。

youdao

Whittingham noted that, when heated up, the electrolytic solvent in the battery can turn into a flammable gas, which can potentially trigger a fire.

WSJ: The Science Behind Dreamliner's Batteries