Originally Posted by Brucerobs2
Not sure if this is the "holy grail" but since your teak is already perfect, you might consider adding about 4 coats of either Cetol Gloss (preferred), and/or Cetol Natural Teak (2nd choice)
Last time I read the can from Cetol...I said specifically not to use the clear coat by itself, start with 3-4 layers of Natural, Light, or Original, followed by 2-3 coats of gloss, which then becomes your maintenance coat.
I am a big fan of Cetol, especially the new Natural followed by the Gloss, but not for high traffic areas or areas where you will see it up close regularly.
I have been using Epifanes Woodfinish Gloss followed by their Extra UV Clear Varnish with great results, but I also keep those teak items covered (wheel, cockpit table, etc.).
More importantly, you say you want to use it on the exterior "floor"?
If you mean your teak deck or cockpit floor I would do nothing to it!!!! Unless you like falling on your ass regularly.