I can easily understand why Cetol would not be good over any epoxy sealer. I use it on what bare teak I still have, (rails, steps to and flybridge cupboard doors, and cockpit door), and what I like about it is the way it soaks in to the wood to some extent, but also imparts a satiny type of low gloss which lasts much longer than pure teak oil, but also does not build up like varnish, so only needs a wipe down or light sanding before re-coating. If one sealed the teak then that could not happen, and it would take longer to dry, and would build up on the surface, detracting, at least to some extent, from its main feature. That is, the lazy man's varnish, which never needs sanding right back. I have no problem in admitting to being lazy in this specific situation, as there is always so much other stuff to do, right...?