If your deck needs a face-lift, consider using Rust-Oleum's Deck & Concrete Restore . You apply this resurfacer with a special roller sleeve, and it feels like you're rolling on liquid rubber. Because it's so thick (about the consistency of sour cream), it doesn't go far. But the result is an attractive, slip-resistant coating that should last for years. Restore is formulated for decks and concrete, but only for foot traffic and only for rougher broom-finished surfaces.