teak wood

[nipper]

I am a big fan of Sikkens Cetol Marine finish. Lasts a long time. Pretty expensive--about 40 bucks a quart, but a quart goes a long way. You put on 3-6 coats initially, then can just lightly sand and put on a couple more coats each season. On areas that are not exposed to sun, it'll last for years without any need to retreat.