We are just had our oak hardwood floors refinished. We are disappointed that the finish is much rougher than the smooth finish on a room in the house that was refinished four years ago. We showed the contractor this room before he started and he assured us his finished floors would be just as smooth. When they had finished sanding and had applied the stain, I felt the floor and it felt rough. I looked at the drum sander and saw they had finished with 60 grit sandpaper. I have read the final sanding should be 80 to 120 grit. I asked the contractor about this he said he would screen with 120 grit sandpaper in between the three coats of polyurethane and this would make it "as slick as an eel". He then proceeded to apply the polyurethane. Three hours later he said he was finished. I expressed my surprise that he could apply three coats so quickly. He said the polyurethane dries in 30 minutes so it was no problem. The floor was wet and I couldn't touch it to feel the finish. I paid him and he was on his way. Now that it has dried we have discovered that the finish is still rough. He left two empty one gallon cans of polyurethane behind(in the trash). It's ICI Wood Pride water based Clear Gloss Varnish 1808-0000 and Clear Satin Varnish 1802-0000. I don't know why he would use both gloss and satin when we had asked for satin. I read on the can label that the final sanding should be 150 grit or finer. It said the drying time for recoating is three to four hours. It seems the contractor has rushed the job. I called him and explained that the floor was much rougher than what we expected. He said it just needs another coat of polyurethane and he would do that. I have my doubts that this will give us the finish we want. Will an additional coat or coats of polyurethane smooth out the finish? Or, should it be resanded with a finer grit of sandpaper? Any advice would be much appreciated.