There’s nothing quite as elegant, or as salty, as a teak deck. Whether on a brand new yacht or an ancient trawler, teak decks are a statement. You can look at them, and walk on them, with pride. Until…The problem is that teak decks do not just take care of themselves. (I know; I used to have a Grand Banks with enough teak to duplicate a Malaysian rain forest.) The normal care and feeding of teak, the slight sanding, the varnishing, the repeat sanding, the repeat varnishing, is well known. But there does come a time in the life of all teak decks when it’s time to call it quits, when you need to tear them up and start all over again. That’s not really something you want to think about, but it is a fact. Before that day comes, please take a look at this very good advice from a pro about how to care for, and finally replace, your teak deck.
http://www.pbo.co.uk/expert-advice/the-truth-about-teak-decks-27622