Sander to sand down polyurethane layer on flooring

[branimal]

I’m installing 120 feet of red oak flooring across a kitchen, a couple of stair treads and some other small random spots in my condo.

I’m going to hire a guy with a drum sander to sand the floor smooth and level.

I’ll stain and put down the polyurethane layers myself. What type of sander would I use to sand the poly layers to get a nice smooth finish.?

I’d rather not hire the drum sander guy to sand the poly layers. Trying to save some money and buy a new tool.


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[seber]

Urethane is a very flexible material similar to rubber. Sanding? I don't think so.

 

[jeffmattero76]

I have done this many times in my rental properties. You use a floor buffing machine that janitors use. The orange big box sells 14" sanding screen disks (I typically use the 120 grit) and different color scrubbing pads. The buffing machine has a brush. Under the brush, I use a white or green scrubbing pad (least agressive), and under that I use the sanding screen. The purpose of the pad is to hold the sanding screen flat as you sand the floor. You screen the entire floor, shop vac the dust, and then I soak a microfiber rag with paint thinner, attach it to a sponge mop, and mop the floor. The paint thinner will pick up any leftover dust. I then recoat the floor.

Good luck!

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[Lelandwelds]

I have done this many times in my rental properties. You use a floor buffing machine that janitors use. The orange big box sells 14" sanding screen disks (I typically use the 120 grit) and different color scrubbing pads. The buffing machine has a brush. Under the brush, I use a white or green scrubbing pad (least agressive), and under that I use the sanding screen. The purpose of the pad is to hold the sanding screen flat as you sand the floor. You screen the entire floor, shop vac the dust, and then I soak a microfiber rag with paint thinner, attach it to a sponge mop, and mop the floor. The paint thinner will pick up any leftover dust. I then recoat the floor.

Good luck!

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I just rented a giant jitterbug sander. It's pad was 12" x 18" or so. My poly was self leveling. The first coat had some dog hair and June bug tracks to sand out. If not for that, I could have skipped some sanding.

My poly on maple survived some pretty extreme abuse. My new stained concrete is tougher.

 

[bmwpowere36m3]

I contemplated doing it myself... but factoring in the rental, time, dust and fumes. For ~1.3/sqft the floors where sanded, stained and poly'd (3-coats).

It just wasn't worth it to me...

Buying a drum sander, edger and buffer to do the job... even less sense.