Hi Folks, As our boats age I find that the engine insulation needs some attention from time to time. It is critical that the foam/lead material be as sealed as possible. The silver tape that the factory used tends to break down over time and needs replacement. You can purchase this silver duct tape at Home Depot and it is easy to reapply. If the foam becomes exposed, it will eventually decompose and will have to be completely replaced which is a much more difficult job.