why Foam and LPG Fires Don't Mix In many hydrocarbon fire scenarios, our first instinct is: Apply foam,it's the classic go-to method for liquid spill fires. But when it comes to LPG (Liquefied Petroleum Gas), things are completely different. The physics of the fire changes the game. Unlike typical pool fires, LPG fires are usuallyjiet fires pressurized flames resulting from gas leaks. in these cases, applying foam doesn't suppress the fire; it often adds heat to the refrigerated liquid surface,