I am a little surprised that no one has heard of this product. It is worth checking out at: http://www.teaqua.com/home.htm
It appears that it will provide a finish to teak that will last for years with minimal maintenance. I am going to try it on my teak which my wife just sanded down and if I don't want a divorce I had better come up with a finish for the teak that won't require that process again. After it's finished I will give an update and then I'll report back after it's been exposed to the elements for a year.