By now some of you might be thinking, why even use teak, just use fiberglass or starboard and run maintenance free. Well that is a good point but fiberglass lacks character and properly maintained teak is simply beautiful.
Step 1: Materials Needed
1. Something made of teak
2. Teak Oil (I am using Tung Oil which is very similar so if you have some tung oil around just use it)
3. Sandpaper (A few grits here, start at 100 for weathered wood and work through 200 or 300)
4. Rag for applying the oil, nothing special as you will end up throwing it away.
Since I am always working in a small area I just apply the oil with a rag and rub it with the same rag, for larger areas you can brush the oil on and the wipe down with a rag.
Step 2: Washing and Sanding the Wood
So I am sanding this by hand due to the small irregular size of the piece, if you have large flat areas pull out the power sander. Always start with the finest grit you can get away with, you want to remove the least amount of wood as possible so it lasts a long time. I would never use a belt sander with a 60 grit belt, it will just eat your teak up.
If the wood is weathered bad I will start with 100 grit paper to smooth the surface and work out scratches. Keep working up through grits, how high you go is just a matter of preference and the application. A step might need a rougher surface than a tabletop. I sand through 320 on my gun because it looks really good. Deep gouges can be left, we call this character and outdoor teak is not expected to look like a fine dining table.
Step 3: Applying the Oil
Between coats I wrap my rag with saran wrap and put it in an open concrete area. The plastic wrap keeps the oil from drying between coats. Be careful though, oil soaked rags have been known to start fires when kept in an oxygen free environment. When you are done lay the rag out on concrete, let is dry out, and dispose of it.
Step 4: Put It All Back Together
Now that you are done sit back, crack open a cold beverage and enjoy your handiwork.