That part which you photographed looks ok -- with some caveats.
Teak decks become unserviceable when:
1. The thickness is reduced to the point where the screw bungs pop out and screw heads get to be higher than the level of the deck. But this only applies to the traditional kind with screws. These look like the Moody type which are glued down.
2. The planks start splitting or pulling up.
3. The planks become heavily grooved.
The part of your deck which you photographed doesn't seem to have any of those problems. You can see that the teak is wearing down and the caulking standing proud, but that is normal wear. As someone above posted, you can shave down the caulking.
HOWEVER -- the deck is the wrong color -- should be silvery gray. Someone has obviously used an acid wash to give it that yellowish color. Maybe it was done only once, when the boat was put up for sale
, in which case maybe there is no permanent damage. IF, however, oil
was put onto it, then that's even worse than acid, as the oil
will attract dirt (which teak normally sheds) and they will quickly blacken and start looking dirty. Do not under any circumstances perpetuate the mistake by putting on more oil.
As others have said -- never do anything to those decks in the way of regular maintenance
, other than buckets and buckets and buckets of seawater, as often as you can manage it. Do NOT scrub them. You can use a soft sponge (much better than a brush) to GENTLY wash them, ALWAYS washing
across the grain and never with it. But not too often. You can use a little dish detergent -- even less often -- to help get the dirt up, but do so very, very sparingly, as this will strip the oil out.
is essential, as it holds the moisture in and keeps them from drying out. People in fresh water
will even make a saline solution to pour on their decks. If you let them dry out under hot sun for along time with no sea water, they will start to crack and that will be the end of them. That is why teak decks are unpopular in the tropics; although up in these latitudes everyone loves them.
In general, teak is a miraculous almost self-cleaning material, and the less you do to them, the better. They don't show dirt and seem to actually shed it. Lots and lots of seawater, and spare the brush, and for God's sake, no chemicals or oils.
The one single
exception to the "no chemicals" rule
is that you can use Boracol, to fight black mold
spots, and green slime. This causes no damage and has an almost miraculous effect. Be careful with it, however, as it is highly toxic. Don't let it wash down into your water tanks