Can someone please tell me what is the purpose of sanding between the coats of polyeurethane when refinishing wood floors?
Is it to make the surface smoother and get rid of air bubbles? Or will subsequent coats not stick unless the floor is sanded?
I can't handle the large floor sander, so I have been working on the floors with a palm sander. It has taken a few weeks but I am finally ready to put the sealer on and would really like to not have to sand the entire 1000 square feet or so by hand in between coats unless it is absolutely necessary.
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