For most of the year, the boat is stored in a lift in Central Florida. No bottom paint is required or wanted. For about a month each summer, the boat is taken to the Keys and remains in the water. Even though it is taken to a sand bar about once a week and the bottom is cleaned manually, small barnacles begin to take hold after a week or so around hard to get to areas on the transom like the trim tabs, engine lower units, etc. Is anyone aware of a temporary protective coating that can be applied to these areas that is durable enough not to be scrubbed off during running (but can be washed off later) and is environmentally acceptable (as opposed to a grease}?