With a little time, elbow grease, and the family of Rust-Oleum Restore products, reviving your old deck is easily achieved. With less than a day’s work, your posts, railings, and deck boards can be refreshed and ready to stand up to the weather again. Follow these basic steps:
Prep the surface with deck cleaner and a stiff broom. If you power wash, wait a week before proceeding.
Lay drop cloths and stain vertical surfaces.
Tape off posts.
Apply deck-restoring product with appropriate rollers, in one direction.
Roll two boards at a time until complete. Remove tape while product is wet.
Let first coat dry. Repeat.
Keep animals away until completely dry.
Read the full article here: Restore an Aging Deck – DIY Advice Blog – Family Handyman DIY Community