What material is a jubilee patch primarily made of?

A jubilee patch is primarily constructed from a metal band lined with rubber. This design is specifically engineered to provide a reliable and durable method for sealing leaks in pipes or hoses. The metal band offers the necessary strength and rigidity to withstand pressure, while the rubber lining ensures a tight seal against the surface of the damaged section. This combination allows the jubilee patch to effectively contain fluids and prevent further leakage, making it an essential tool in damage control operations.

The other materials listed, such as plastic, wood, and composite materials, do not possess the same level of strength or sealing capabilities in high-pressure situations as a metal band lined with rubber. Therefore, they would not serve the same primary function in damage control scenarios, highlighting why the chosen answer is the most appropriate.