I put down a new bedroom floor, using 9" wide shiplap pine. The room is 15' X 12'. We decided to finish it naturally without stain. I used waterbased polyurethene last summer on a hardwood floor and it came out OK, but we decided to use oil based polyurethene for this pine floor.
The salesman convinced me to use a sealer before the final finish. I've done floors before and never used a sealer, but I did this time. One more step, another $25. The problem is that I let him convince me to use a lambs wool applicator for the polyurethene. It made sense, what he was saying, but it did not come out well. I had to handsand out the bubbles on the first coat. Then I went back to the old faithful foam roller, and a brush to get rid of the bubbles.
So...lambs wool applicator - where did I go wrong with it? Was it me or the applicator? I did not see the bubbles as I applied the first coat, but they were there when it dried.
Also, is a sealer a smart step?