This is Dennis - We do the exterior teak with Honey Teak - run a google search and you can find it. It's a two part epoxy urethane which lasts several seasons (say 4 - 5) with minimal touch up and maintenance. Successive coats can be applied as long as the product remains tacky - otherwise a rubdown with Scotch brite scruffs it up for the next coat. WE are using Bristol Finish which is a very similar product for the interior - Iris is in command of this job so I'll turn it over to her - Randy, I've found the interior teak on the boat does beautifully with the Bristol finish. Its easy to use, and you can also apply a number of coats. The honey teak is wonderful, but its way too expensive and messy to do the interior of the boat (it really doesn't need it). I've been sanding the teak lightly...more so where there are darker stains, staining the teak with a gel or rub on stain, and after 24 hours, I stain with the Bristol Finish (i'm using high gloss) as many coats (i do about 5) or more depending on whether Dennis is taking me to dinner....I think you'll love it !