I used to fish my bass boat with bow mounted Minn Kota in tide zones for stripers. Did it for 7 years. Some of the big mouth fishing in tidal zones can be brackish too, which accounted for most of my outings. I never experienced any wear related issues or damage. The only precaution I took was to rinse the boat, trailer, and trolling motor well with fresh water while flushing my outboard at the end of the day.