Feature●KILLS ORGANIC GROWTH ON YOUR OUTDOOR SURFACES WITH EASE: 30 SECONDS Spray & Walk Away kills lichen, moss and algae over time. Great for large, or hard to reach areas●EASY DIY HOME IMPROVEMENT: No pressure washing, rinsing, scrubbing, or hosing required. It takes 30 seconds to spray and then you simply walk away! Results will become visible over time. No need to hire a professional●WORKS ON A VARIETY OF OUTDOOR SURFACES: Works on many outdoor surfaces including roofs, composite shingles, sealed concrete, asphalt driveways and sealed brickwork. Its Bleach and phosphate-free, with a neutral pH●KEEP DRIVEWAYS, WALKWAYS AND PATHWAYS SLIP-FREE: Keeping your driveway and pathways free of organic growth improves traction, and will create a safer space around your home●PROUDLY MADE IN AMERICA: All 30 SECONDS products are manufactured in the USA with US and Imported PartsDescription Kills Lichen, Moss, Mold & Algae in one easy step. Simply Spray & Walk Away. 30 SECONDS Spray & Walk Away is a slow release formula that works over time. Mother Nature does the work for you, eroding the treated matter, while it decays over the coming weeks. Perfect for those LARGE surface areas that you can Spray & Walk Away; Subdivision walls, roofs (composite, glazed, Tiled and Shingles), pathways, sealed brickwork and concrete, asphalt driveways, vinyl and aluminum siding, wood decks and many other hard surfaces. And best of all it saves water, time and money in not having to pressure wash or rinse off. Safe around play areas, gardens and pets when used as directed. Contains no bleach and is phosphate free.