how do you sand floor between polyurethan coats
2006-09-07 14:55:15 · 8 answers · asked by william c 1 in Home & Garden ➔ Maintenance & Repairs
Get the finest grit - wet sand sandpaper for final finishing coat. The sander you are using may have actual products that are specified for this purpose. Ask the owner of the sander what they recommend.
2006-09-07 15:02:47 · answer #1 · answered by damsel36 5 · 0⤊ 0⤋
Use an electric sander with a dust bag to remove the dust created by the sanding process. Use medium grit "sand paper", the coarse will cut too deeply while the fine may not kill the smoothness of the first coat to allow the second coat to adhere to the floor.
Remember to sand along the grain any cross sanding will show up.
Will you be using a paste wax polish at the end? Heavenly smell!
2006-09-07 15:19:34 · answer #2 · answered by springday 4 · 1⤊ 0⤋
normally i would use a 100 grit screen on a 17" floor machine. if you dont have that availabe to you, i would use a 120 grit paper or screen. lightly sand in a circular motion. you only want to scuff the surface and remove any bumps in the finish. i would avoid using a tack cloth. instead, i would vacuum as best you can and use a damp cloth to wipe the floor down.
most of the newer finishes dry very fast, but i would reccomend waiting overnight before sanding.
i would also avoid using scotchbrite pads. they will do a fine job in scuffing the surface but will not help to level out the bumps in the varnish. do not use extra fine sandpaper. it will clog up very fast and will also not do a good job in removing the bumps in the varnish.
if you are using a lambs wool (10 or 12 inch) to varnish, there will be sufficient varnish to fill in any scratches that 120 grit paper will leave. it is not practical to finish the floor as you would a tabletop. one of the problems with the new finishes is in order to meet the newer VOC standards, it dries very fast. because of this it is important that you get the finish on a larger surface such as a floor as fast as possible to keep a wet edge on the varnish.
mike
2006-09-08 11:27:25 · answer #3 · answered by flyboy3b 1 · 0⤊ 0⤋
I would use Scotchbrite pads instead of sandpaper. You can buy larger pieces at an auto parts store selling products for bodyshops. They make a couple of grades. Get the gray color if available. You scuff the floor and wipe up with Swiffer.
2006-09-07 14:58:10 · answer #4 · answered by united9198 7 · 0⤊ 0⤋
Sand w/ fine steele wool then wipe w/ damp rag and let dry before using varnish. And (so speaks the voice of experience) open then cover any windows w/ black cloth or tape black garbage bags up if you are varnishing during the daytime so that the varnish that is where the sun is shining does not dry faster.
2006-09-07 15:01:32 · answer #5 · answered by Michelle G 5 · 0⤊ 0⤋
Lightly, by hand. In between coats, all you want to do is remove any imperfections in the last coat, nicks and specks and stuff, so you have a generally smooth coat.
2006-09-07 16:43:43 · answer #6 · answered by presidentofallantarctica 5 · 0⤊ 0⤋
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2014-11-25 22:35:00 · answer #7 · answered by ? 3 · 0⤊ 0⤋
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2015-03-29 16:36:38 · answer #8 · answered by jackie 2 · 0⤊ 0⤋