This application shows the moistening of the surface with undiluted LIQUI-HARD ULTRA by sprayer or microfiber applicator. When spraying, a spray nozzle that produces a flow of 0.5 GPM (1.9 LPM) under 40 psi (0.276 MPA), is recommended. LIQUI-HARD ULTRA should be sprayed in a fine fog pattern. Keep surface moist with LIQUI-HARD ULTRA for 20 minutes but do not let material stand and puddle. If excess material is still on surface after 20 minutes, use a microfiber applicator to even out excess material. Pay particular attention to steel-troweled surfaces. After initial 20 minutes, let the surface dry.