I recently read the article entitled A Durable Exterior Finish by Sean Clarke and he recommended purchasing a product called: MultiWoodPrime (also called Clear Penetrating Epoxy Sealer by Smith and Company as well as Epiphanes, a Marine Spar varnish.  I purchased both of these products and I will be using them on a round top for a wine barrel that we keep outside on a patio. I made the top out of leftover teak flooring that we had installed in our home. My question is when applying the epoxy, since I cannot apply on both the top and bottom at the same time should I wait until the top is dry and then do the bottom or should I apply multiple coats on the top and then when they are dry apply multiple coats to the bottom.  Obviously the same question for the marine spar varnish Epiphanes.