Cleans away Dirt and Stains from Deck Surfaces. Easy and Safe to Use without Harsh Chemicals. Effective on All Deck Surfaces. Regular Use Restores Non-Skid Feature. Just wet the deck with fresh water then pour the Non-Skid Deck Cleaner over desired area and disburse with a deck brush. Allow to soak in for 2-3 minutes then use a deck brush to scrub the surface. Rinse the deck with fresh water.