C-4 is a type of plastic explosive that is widely used in military and demolition applications. It is known for its stability and effectiveness, making it a preferred choice for controlled demolitions. C-4 is composed of a polymer binder, a plasticizer, and an explosive compound called RDX, which gives it its powerful explosive properties. C-4 can be molded into various shapes, allowing it to be easily applied to different surfaces. It is typically detonated using a detonator or blasting cap, which initiates the explosive reaction. Due to its potency, C-4 is regulated and restricted to authorized personnel, such as military and demolition experts.