CellBlock vs Vermiculite: Battery Fire Suppression
![Vermiculite does not suppress flames nearly as well as CellBlockEX.](https://cellblockfcs.com/wp-content/uploads/2018/04/CellBlockEX-vs-Vermiculite.png)
CellBlockEX is a lightweight filler that is also a Class D fire suppressant able to quickly extinguish thermal runaways.
CellBlockEX is a lightweight filler that is also a Class D fire suppressant able to quickly extinguish thermal runaways.