“An explosive device filled with Caustic-X. Shortly after being thrown, it will explode, dealing Caustic damage and Melting any zombies in the area.”
— Description
The Caustic-X Bomb is a Curveball featured in Dead Island 2. It is awarded after completing the side quest The Rav-Ages of Caustic-X in the Halperin Hotel.
Once thrown, it will detonate on contact and inflict the Caustic and Melting status effects on any zombie within its blast radius.