Sherwin-Williams Industrial and Marine Coatings Group says its FasTop slurry and mortar systems are highly durable, fast curing, water-based industrial floor coatings. Able to be finished with decorative quartz broadcast or sand, FasTop S is a high solids, water-based, urethane modified, cementitious slurry for use where the existing substrate is in good condition. FasTop M is a water-based, urethane cementitious mortar system for use where the substrate requires resurfacing or sloping.