Transform your Deck in One Day with RockSolid 20X Deck Resurfacer. High-build, water-based acrylic coating is specially designed for heavily worn decks and patios. 20X thicker for maximum durability. Ultra-thick paint allows for 1-coat coverage. Superior weather resistance and waterproofing protection. Fills 1/4 In. cracks. For best results, clean using RockSolid Deck & Patio Cleaner and then prime the surface with RockSolid Deck Start Wood Primer.