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1

You could, but I wouldn't. It's just going to be a lot of tiring work (the sander is moderately heavy, at least for moving it around while sitting or kneeling on a floor you're working on) and possibly take off more material than you want if you're not careful. When I finished wood floors, I just used large-size sanding sponges (very light) and a few passes ...


1

I did exactly what you're suggesting a couple years ago on ~500 sq ft of hardwood floor, with great results. As long as you have a semi-decent sander (connected to a vacuum) and decent sandpaper that doesn't clog all the time, you'll be done in no time. In fact, you need to be careful not to spend any time on a single spot or you'll sand right through the ...


1

Best thing to use is steel wool on pole sander. Harper has a good point you are not leveling, but beyond that most sand papers from home improvement stores are to heavy of a grit. Besides it is VERY difficult to clean up all of the sanding grit prior to the next coat. Steel wool and a good cleaning prior to the next coat will give you a mirror finish.


1

That is fine. All you're trying to do is knock down petrified fluff and dust. And also scuff the surface to give it some "tooth" for the next coat to bite in to, but that is not necessary if you've hit your re-coat times. As such, you do not want a tool meant to level; that would mean blowing through the coating entirely on high spots. A flexible, ...


7

You could use a hand-held orbital- like you mentioned the biggest downside is time. But you're correct, sanding between coats of poly isn't stripping an old floor- it's just scuffing up the previous coat of poly in preparation for the next one. Even easier for this step though would probably be a pole sander- like the kind for drywall seams. Use a fine ...


7

I had two floors to do once and between coats I used a broom with 3 bits of fine sanding paper taped to the broom head - cheap, cheerful and effective... Also, had to punch down the floor brads (nails) so they were below the surface... Those floors came up magic but also vacuumed after sanding to remove the dust...


1

"...stick with the same spar urethane...?" YES "Should I expect a fresh coat of urethane to give the stain a more even finish"? KINDA The spar varnish will slightly darken everything, making the wood look like it would look if wet. Take a damp sponge to it to see if you like the look. "do I just need to re-stain first?" SEE ABOVE "How many coats ...


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