I am in the process of building a tv/display unit made from solid Marri. In particular the top is a Marri slab 50mm thick with a natural edge. However, as is typical with Marri the timber has a number of natural 'imperfections' that need to be filled so a flat finish can be achieved. I would appreciate any ideas on the best sealer I should use that would fill the cracks etc but achieve a flat finish.