by Clint F.
Here is a floor I coated a few years back. It was a single pack polyurethane in un-labled cans that the owner supplied so I have no idea what brand, or what company made it.
This floor has eight coats. Concrete seems to need more coats than timber (three is standard for timber) so plan on being generous with the coats.
Whatever you do to the concrete prior to applying the coatings will be visible, such as patch ups, ground out spots, that sort of thing. However, at the end of the day it will still look pretty damn good.
The floor in the pictures (above & below) were ground down prior to being finished with the polyurethane.
The edges are cut in with a good quality brush and the rest of it is rolled on with a Mohair roller. When coating concrete you have to go like buggery, as there are no places where you can stop, and if you do stop you risk leaving over-lap marks. So you have to get on with it.
Here is another house, (same client,different house) although these pictures are not of the final finish and the eventual final coat was a satin finish rather than a gloss. Still looks pretty good.
Some Mighty Fine Floor Sanding