Ultimate sole is out of business. Gym floor finish is very similar to Ultimate sole as it has to be tough, shiny and have limited slip.
As for interiors there are many options but Cetol would not be one I'd personally choose. You don't need the UV protection in the cabin that you do outside. The UV inhibitors in Cetol make the finish tend towards cloudy. Any good polyurethane, Danish or Tung oil finish or a varnish will work. I use polyurethane and Varathane oil is the one I prefer but the PO's used Minwax Helmsman Spar Urethane so I have continued with it.
Catalina and others are using water based polyurethane finishes these days..
Good morning guys!
I should point out that there are several different versions of Cetol, both for marine and residental use. Both the marine and residential versions have clear formulas that are crystal-clear with very little in the way of UV inhibitors. They are not cloudy at all, and provide a tough durable finish that is easy to apply and re-apply.
Here is a link to the corporate page that shows all their residential products:
http://www.nam.sikkens.com/product-category.cfm?product_category=exterior
You will see a clear satin product on this site that will be quite appropriate for a boat interior.
Here is the Jamestown Distributors website page showing the 4 Cetol Marine formulations, (yes, FOUR!) including their clear gloss topcoat. From experience, the Cetol Marine Gloss is a very forgiving, and provides a very beautiful finish.
http://www.jamestowndistributors.co...GRID&engine=adwords!6456&keyword=cetol_marine
I only post this reply to point out that there are choices when it comes to Cetol.