Dave, the Blazecut tube becomes junk after it goes off. It is a plastic tube that melts, there won't be anything left worth saving or rebuilding.
It also uses HFC, which is a clean agent Halon-like substance. Halon works by displacing the oxygen and smothering the fire by removing the oxygen source from the equation. HFC does not displace oxygen, it takes the heat away making further combustion impossible.
It is not foam.
As others have stated as well, I have three problems with the Blazecut.
First, it's too small. Second, there are no jets so you have no idea where the tube will melt open or which way the chemical will go. And last: it's like closing the barn door after the horses have got out. It requires high heat or a flame, or a full-on BIG problem for it to work.
Let's just say I'm cruising down the road with my remote-activated fire bottle installed. Let's just say I see smoke or smell something funny. It could be oil, gas, heck it could be burning brake pads/shoes. I pull over, and the smoke intensifies. I simply pull the lever. Fire is now out, BEFORE flames even got started. Before my decklid/clamshell melted from the inside out. Before half the car is gone.