C4 is a type of plastic explosive that is widely used in military and demolition applications. It is composed of a polymer binder, which makes it flexible and easy to mold, along with a powerful explosive compound called RDX. C4 is known for its stability and safety, allowing it to be transported and handled without significant risk. When detonated, C4 produces a high-velocity shock wave, making it effective for breaching structures or demolishing buildings. It is often initiated using a detonator or blasting cap, and its versatility allows it to be used in various military operations and controlled demolitions.