My new shop floor was poured about a month ago. I waited 2 days, then power-washed the floor to get all the dust out that was caused by cutting the joints. I then used the recommended Sureshine concrete sealer. I was very careful about how I put it on and made sure all the dust was gone. I sprayed it on with a pump up sprayer. It looks like a polished floor now, with only 2 coats of the material. I did 2750 sq. ft, and a 5 gallons bucket did the entire job. When I power-washed the floor, I used a wide fan tip, and kept it off the floor app. 12", then used squeegee to push the water out. Would do it again the same way.