Teak wood is beautiful and really a trademark of a classic boat. Keeping it in good shape and looking it's best doesn't have to be difficult. Teak Oil is the traditional weapon to keep teak looking good but requires frequent oiling and can make the deck slippery. Here's a process I use to keep my teak looking great all year long. The sanding and stripping was done the first year I refinished the deck and then a yearly application of sealer has kept it looking great for years.
1. Sand it with 240 paper to get all the rough spots off and to get the deck smooth and level.
2. Sand it with 320 paper to get a nice finish on the deck that won't be too smooth and become slippery after we finish it with sealer.
3. Clean with TEKA 2 part teal cleaner. You apply part A to the deck and it opens the pores in the wood and lets you scrub the deck with a scrub brush to get the dirt out of the wood that has settled in there over the years. You rinse and apply part B to close the grain back up. Rinse again and head on to step 4.
4. Let dry overnight.
5. Sand the deck again with 320 grit paper to "knock down the grain" that is standing after the cleaning.
6. Apply Startbrite Tropical Teak Sealer to the deck with a brush. I use the foam brushes and lay it on fairly thick.
7. Let dry and apply another coat.
8. Let second coat dry overnight.
9. Take a clean rag and wipe any excess sealant off the deck until it feels dry and smooth.
10. Put it back on the boat and enjoy!
After applying this sealant I usually get a full year out of a coat. I repeat steps 6-10 every year and have not had to sand or deep clean the deck since. Here's a few pics of the deck.....
This is the finished product ready to go back on the boat.
This is the same deck 10 months later without any further treatment...