A heat gun will take it off fast as Chip says. However, be aware that bare teak trim generally starts getting black and then starts to crack over time.*Depending on your climate,*it can also start getting mold*and mildew on it, too. *I'm told by ex-shipwrights on the Grand Banks forum that a lot of this has to do with the way teak trim is milled, exposing the grain in such a way that lends itself to crevicing and cracking as the wood swells and shrinks, and gets wet and dries out without any protection on it. Teak deck planks are not milled in a way that makes them susceptible to this.
There are several boats, power and sail, in our part of our marina who have let their teak trim--- by which I mean half rounds, quarter rounds, and bullnose trim, hatch sides, etc. --- go "natural." On all of them, the trim has darkened, in some places it's black, and there are long crevices and splits in the trim strips.
These are all boats that sit in the weather. If you keep your boat in a boathouse the risk of unfinished trim deterioration is greatly reduced.
-- Edited by Marin on Thursday 9th of September 2010 06:30:18 PM