During building work a section of my dining room engineered oak floor was covered with OSB boards and lining paper for protection.
After protection was removed I found a large stain printed into the floor. It does not show up well in photos but it is rather large and spans across 4 planks.
pics link
https://www.dropbox.com/sh/26gcz5w4l6lfqdv/AABGX9LsiYXoz2-orRMzTGqna?dl=0
They either spilled water or primer or god knows what.
Is there any way I could fix this? I tried mild detergents but it looks like it's there to stay...
After protection was removed I found a large stain printed into the floor. It does not show up well in photos but it is rather large and spans across 4 planks.
pics link
https://www.dropbox.com/sh/26gcz5w4l6lfqdv/AABGX9LsiYXoz2-orRMzTGqna?dl=0
They either spilled water or primer or god knows what.
Is there any way I could fix this? I tried mild detergents but it looks like it's there to stay...