I don't understand it how does Gel exactly works? Also i got a new idea for Boom behaviour its consistence is like Gel but explosive and is hardly burnable. Well to simulate Air Fuel Bomb (First Gas gets released , then it goes boom)
Ah okey. Hmm but i have another idea i think maybe should boom release a bit of sparks so you can make Noble Gas bomb easily OR that Noble Gas can be exploding with other Stuff except Spark, Boom maybe.
I think either Liquid or Powder should be breakable and easily same for Bombshell. Because this way you can make awesome explosives