They will make any future need of refinishing very difficult, and most wax based products are dust catchers. The clear coat epoxies have leveling agents which allow the uncured resin to flow evenly and cure slowly. If the teak becomes, or is, damaged you'll have little choice but to refinish it. Refinishing is a whole other article for the future. Exterior teak is finished in several ways, including totally natural, oiled, sealed, and varnished.
Exterior teak requires a very frequent maintenance schedule.
The advantage of this is that unfinished teak is an excellent non-skid surface, even when wet, and can be a cooler surface on which you place your bare feet. Generally, a weekly soap and water wash down with a VERY soft brush or pad is adequate. Always do this after an outing or fishing trip. If your boat is used for fishing, keep a large bottle of household hydrogen peroxide on board. Like magic, the blood is oxidized.