Hello what would be an acceptable budget finish for a wooden table to be used outside a restaurant. They will be used for 1 week only and will be cleaned by waiters all day. A salesman told me I should use Varathane Oil based outdoor finish or Helmsman Spar Urethane. Just checking here before I decide to go with one of these. And also these are oil based, is there a big difference if I used water based? (I would like to let the tables dry indoors until they're ready)
Also I am just making the top part of a table which is going to be made out of birch plywood (russian birch veneer)