Applying epoxy resin in stages

I am after ideas on how I can apply epoxy resin to all 6 sides of a box, preferably without leaving any seam lines.

* Can the resin be applied in stages, e.g. allowing each side to fully cure and then proceeding to turn the box so the next side is horizontal and do that one, etc? And if so, can the surfaces be sanded to eliminate seam lines?

* Or, should the resin be applied when the previous side/s are in half-cure stage? And if so, can half-cured resin be taped to ensure no runs?

Any advice anyone can provide will be greatly appreciated! Many thanks in advance.