Re: What are good sealers for wood and best way to prep?
If your boat has teak, I highly recommend the Starbrite 3 part kit to restore it. There is a cleaner, brightener and then an oil. It takes some elbow grease but you can't beat the end result IMO. Teak is an amazing wood. My old Four Winns had a teak swim deck, stern grab rail and a few wood accent pieces. As long as its not stored on the water all day everyday the finish will look great with just a few applications of oil a month. Also, the oil actually gave the swim platform some tack, so slips were not an issue.
Good luck, and be sure to post before and after photos.