120 grit sandpaper
Zinsser 123 Primer
Ace Hardware Royal Outdoor House and Trim Paint in Satin in Heavenly Sand
You'll need primer, exterior paint, brushes, and rollers.
After I cut out all the pieces for the lounge chairs I sanded them all smooth with a belt sander.
Once all the woods pieces were sanded I laid them all flat in my garage with scrap wood raising them off the floor. Vacuum and wipe down all the wood pieces to remove any dust.
Prime your wood with the Zinsser 123 primer and a 4 inch foam roller. It is easy to paint the slats when they are flat since you don't have any crevices to work with. I allowed my wood to dry overnight and then turned all the pieces over and primed the opposite side. Apply 2 coats of Royal House and Trim paint the same way. Use a brush for the sides or to catch any paint drips. Be sure to allow the paint to dry completely between coats (at least overnight before turning)