Reply To: Finish for outdoor Adirondack chair Welcome! / Forums / General Woodworking Discussions / Finishing / Finish for outdoor Adirondack chair / Reply To: Finish for outdoor Adirondack chair Stan A 31 May 2024 at 1:34 pm #840118 I’ve used spar urethane on an outdoor planter and it has held up very well for over a year now. That is my go to for outdoor stuff. It’s nasty chemical crap but that is the trade off of having furniture live outside. Settings