The Z-Guard Pedestrian Traffic System is for use on sprayed-in-place polyurethane foam roofs. Z-Guard is a one-component, moisture curing, silicone/quartz liquid composite slurry designed for use around all equipment requiring servicing, as well as areas of heavy foot traffic. The Z-Guard reinforced, silicone walkway is a dispersion of silicone rubber, organic hardeners, and quartz aggregates. It is a one-part, ready-to-use material that can easily be applied to a dry, frost-free surface, and cures at normal temperature in 12-18 hours by reacting with moisture in the air. It is tack-free in one to two hours.