Apply only one thin coat. Then, remove any dust nibs with 1,500-grit sandpaper or a piece of brown paper bag. Finally, using a soft cotton rag or polishing pad, buff the finish to a high shine using automotive paste wax, photo below, which has fine abrasives that polish the finish even further.
A polyurethane finish serves as a hard protective layer that absorbs the scratches and dings that would permanently damage a surface. With each scratch or .
I am trying to get a mirror polyurethane finish, but no matter what I do I continue. My biggest issue is that once I rub out and polish my project, .
I'll reuse these sheets several times, then toss them. Don't finish on the same day you sand; the dust stays in the air for hours. Start finishing with clean clothes .