Water based urethane will dry clear while oil based formulations will impart a slight golden.
How to fix a low spot in a wood floor.
Start the saw and lower the blade into the wood.
It can also serve as a vapor barrier.
Run it forward along the length of the board making sure not to let it cut into the edges.
It s used to help insulate absorb sound and reduce wear on your floor.
If you have a drum sander on hand this can level out any bumps in the subfloor but you need to have a steady hand to control this.
High spots and bumps in subfloor.
Use an underlayment floor leveler or floor patch product to fix low spots in a wood or concrete subfloor.
Set the front end of the saw s flat blade plate on the damaged board with the blade held up off the surface and pointing in the same direction as the length of the floorboard.
If your floor is natural unstained wood then try a few types of floor urethane on your test patch.