Marine exhaust lagging wrap is a type of insulation material that is used to wrap around exhaust pipes in boats and ships. It helps to reduce the amount of heat that is radiated from the exhaust system, which can improve the overall efficiency of the engine and reduce the risk of fire.

Heat shields are another type of insulation material that is used to protect sensitive components from high temperatures. They are often used in conjunction with exhaust lagging wrap to provide additional protection to nearby components.

Both marine exhaust lagging wrap and heat shields are important components of a marine exhaust system, and can help to improve the safety and efficiency of a boat or ship.