So the teak platforms on a few of our rental boats unfortunately got sprayed with some kind of coating.. it wasn't as tough as polyurethane but it definitely wasn't fun to remove..
Scraped as much as I could first with a scraper. Probably could gave gotten more with a pressure washer but didn't want to wait for the wood to dry back put for sanding.
So, after a lot of sanding I'm starting to get them finished. Started with 60grit on the orbital and only stepped it to 80 grit as I think 120 gets a bit slippery when wet.
All in all a simple project. Just elbow grease. I also couldn't talk them into ordering Amazon Golden teak oil so just used what Lowes had. Leaves it a bit stickier than I'd like but I think as soon as they are in the water the tack will dissappear.