The Ratio-Pak® HSS (High Solids Spray) System is a cartridge-based air-dispensing system. It is a low-cost method to reliably meter, mix, and spray-apply reactive, fast-curing compounds, including polyurea, polyurethane, polyaspartic, and other high-solids hybrid coating products. The patented spray nozzle was designed to be used with Ratio-Pak dual cartridges in ratios from 1:1 to 25:1 and capacities from 100 to 1500 ml. Call 860/889.3383.