Paint on floors

sgarhs1

Hello,
A friend called me with a question and I was researching and came to this site to see if I can get some help.
I know someone who wants Hardwood floors sanded to bare wood, stained and urethaned. I can usually do it so no biggie. But he informed me there is paint on the floor. It looked like there was stain then urethane, and then covered by paint for entire floor.
If I use a drum sander can I take this off with a 20-grit pad, or will it not get into the paint? If so will I have to go over a few times with it?
If not any suggestions on how to get the paint off the floor. The room is over 1k sq ft, so I prefer not scrapping with razor if not needed. My arms can't take that beating!

Thanks for any help.

DangerMouse

i think i'd use strypeze or something similar, then a large putty knife to scrape the goop off to get to bare wood first.
all that paint will gum up a lot of sandpaper if not!
then sand and refinish as usual.
DM

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pinwheel45

20 grit paper should remove the paint & varnish. The key to sanding floors is to let the paper do the work & not expect to get it perfectly clean with the first sanding. 20 grit should remove 80% of the paint/stain varnish. Then drop down to 36 or 40 grit & clean remaining paint/stain varnish before dropping to 80 grit paper. If at any point, the lower grit paper starts clogging, switch back to the courser paper. I usually run 20 grit at a pretty fast pace to keep down on heat. Heated varnish can turn back to liquid form & clog paper.