The most important thing I learned from pressure washing for years, it's all about the prep.. Use muriatic acid when pressure washing, soon as it gets good and dry lay that **** down. Me and my buddy did is, he was impatient and just swept the floors and it was peeling up everywhere, then I did another one with someone and we pressure washed it and it was a totally different outcome. Both use the kit with the bag of stuff that you sprinkle to make flakes on tha floor. U prob know what im talking about. The one that washed the floor first did use two coats of that stuff and let it dry very good. The only marks I saw was where he had a car park for a really long time. Some chips peed up when he moved the car. I would go with the Sherwin williams stuff as mentioned if it was me. Good luck