Jeff, I just recently finished a wooden bathroom sink for a customer. I did a lot of research before even saying I would do it. I found a product at either Lowes or Home Depot that is manufactured by Famowood called Glaze Coat. It is a two part epoxy and is the type of finish you find on some bars and tables. It has a high gloss finish to it but can be flattened out with steel wool or the 3M stuff. I found this video by Carl Jacobson to be very helpful https://www.youtube.com/watch?v=y3wt13z4lH0