I have a little experience with the Petit Sea Gold the non-gloss. i live in SE Alaska
which is in a rain forest so difficult to find a string of days without rain. The Sea gold appears to last well easy to apply. However what it does in the sun ? You must try it on a small section of teak
to see if you like the color. You don't get the rich brown Teak
color. Its more of a blond light color. In my case i did not like that because I had all the Teak on my boat
the same color ( Fuji 35 ketch
with too much teak for me to keep well). When a segment of my toe rail needed to be refinished I sanded to bare wood and applied the Sea Gold. I ended up with two different colors on the same toe rail. Some a light blond and some rich brown. I decided to remove the Sea Gold after a season or two of use. It was looking good finish wise. To remove it I thought I had sanded to bare wood but it is difficult to determine if you have removed all of it. W hen I re-varnished I now have a few blond shadows. I am going to try it on Teak where there would only be one product used and not next to a varnished area.