I have an oak stair tread that I stained to match the other 5 stair treads. I sanded the stair tread at 150, then 220 I believe. It was very smooth and clean. I applied the stain, let it dry and it looked really nice. I brought it upstairs to lay it against the other 5 treads to see how close the stain matched. Very close but a little lite. So I decided to apply a 2nd coat. 2nd coat goes on, I waited about 15 minutes before I wiped it off. Everything goes fine and then I notice what looks like a water splashed stain – right in the middle of the stair tread. I have no idea what it could be. It showed up as soon as I began wiping off the stain. Again it is right in the middle of the stair tread and it was not there before the 2nd coat went on.
So, can I sand the stair tread down at that point as best I can and reapply stain to that spot – or will that just begin a pattern of mismatched blotches on the stair tread – if you know what I mean?