Nice job Bruce. Here's a before and after of one we color sealed (the after is before we did the final cleanup) This was a University about 4 years ago and it still looks this good today once you get their crap of it (as they don't mop it correctly but at least they don't use VCT wax on it anymore.) I gave them procedures they just don't follow them. But it was a son of a gun to clean and then get the mexican tiles haze off.