Hi all! I'm really hoping there's a hardwood flooring expert out there who can give me some direction with this floor. We recently bought a house built in the 1930s and we decided to have the floors refinished to liven them up a bit. So, we hired a contractor who convinced us he'd do the best job because he uses "professional grade" latex finish and it would give us the best look for the money. So, we got the floor done and when we first walked in after the job was completed, we noticed what we thought was white powder near the entry way but since there was some dust in the front yard from the job, we figured it would just go away with cleaning. However, it did not and actually looks worse. There's diffuse white spotting on and between the boards. It looks pretty bad. We've tried to work with the contractor to fix the issue, but he says this has only happened to him once before and all he's willing to do is paint the trouble areas with stain to cover them up. He says the issue is due to moisture in the boards but we have had NO water damage there and no moisture issues in our house otherwise. Humidity readings came out normal.
Please take a look at these pictures. If someone could tell me what's going on with the floors/finish, I'd be very grateful. Also, any ideas about how to fix it would also be MUCH appreciated!
http://s266.photobucket.com/user/mlumpz ... %20Problem