Polyurethane Cure Time - Flooring - Contractor Talk

Polyurethane Cure Time

 
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Old 01-08-2018, 06:20 PM   #1
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Polyurethane Cure Time


Will be setting extension ladders & scaffold on a sanded and refinished oak floor.

Advised the owner that it should be done last. However the floor crew is scheduled to come in anyway ahead of me. Then final coat when I'm done.

What's the nominal cure time on most floor poly's for applying this kind of pressure (overall)?

Usually I wouldn't go in for at least a couple weeks. Rushing is not always the best policy. (rosin paper helps, but still can take damage)

Last edited by artinall; 01-08-2018 at 09:02 PM.
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Old 01-08-2018, 07:28 PM   #2
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Re: Polyurethane Cure Time


Our practice is the same, final coat after trim/cabinets. I ask them to wait 24 hours before light traffic. Ram board under ladders/scaffold. Use common sense & you'll be fine.
What does the sanding contractor say on the subject?

Top coat fixes a lot of scratch sins, but not paint spatter, so don't be that guy.

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Old 01-08-2018, 08:51 PM   #3
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Re: Polyurethane Cure Time


Quote:
Originally Posted by pinwheel View Post
Our practice is the same, final coat after trim/cabinets. I ask them to wait 24 hours before light traffic. Ram board under ladders/scaffold. Use common sense & you'll be fine.
What does the sanding contractor say on the subject?

Top coat fixes a lot of scratch sins, but not paint spatter, so don't be that guy.
So you guys sand, stain, and one coat (or two) before cabinets, trim, paint, etc are done and then come back and final coat at the end?
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Old 01-08-2018, 08:56 PM   #4
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Re: Polyurethane Cure Time


As long as its a heated space it'll be fine at 24 hours like Pinwheel said. If its unheated results will vary.
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Old 01-08-2018, 09:06 PM   #5
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Re: Polyurethane Cure Time


Quote:
Originally Posted by pinwheel View Post
Our practice is the same, final coat after trim/cabinets. I ask them to wait 24 hours before light traffic. Ram board under ladders/scaffold. Use common sense & you'll be fine.
What does the sanding contractor say on the subject?

Top coat fixes a lot of scratch sins, but not paint spatter, so don't be that guy.
Ramboard that much better than rosin? I assume there's no issue taping down.

Not in contact with the sander. But mainly concerned with deep scuffs from the extension feet thru to the stain (24' ladder). There too is any wall dust...

Never been the spatter guy! - How dare you!

Last edited by artinall; 01-08-2018 at 09:12 PM.
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Old 01-08-2018, 09:42 PM   #6
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Re: Polyurethane Cure Time


Don't tape to the new finish!! Ramboard is WAY better than rosin paper.

Last house we did we had the flooring guy apply the last coat at the end of the job. Much less stress knowing there is one more coat going on. We still covered the whole floor with Ramboard until we were done.
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Old 01-08-2018, 11:14 PM   #7
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Re: Polyurethane Cure Time


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Don't tape to the new finish!! Ramboard is WAY better than rosin paper. ...
Then what keeps it from sliding with cross-ways pressure from the ladder legs?
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Old 01-08-2018, 11:20 PM   #8
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Re: Polyurethane Cure Time


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Then what keeps it from sliding with cross-ways pressure from the ladder legs?
Tape the ramboard together. So it's like one giant sheet on the floor.
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Old 01-09-2018, 03:13 AM   #9
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Re: Polyurethane Cure Time


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So you guys sand, stain, and one coat (or two) before cabinets, trim, paint, etc are done and then come back and final coat at the end?

Yep, Im coming back one way or the other, to fix f ups, or recoat the whole floor. Might as well make it the recoat. Less stress for everyone.

One thing I emphasize strongly, no plastic to protect floors. No silicone or wax. No commercial floor cleaner, just damp mop to clean up.

Had a client one time use heavy black plastic to replace the floors while they varnished trim. Black plastic has a silicone release agent. Had a hell of a time with fisheyes on the top coat. Had to shellac everything to get the top coat to adhere.
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Old 01-09-2018, 08:57 AM   #10
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Re: Polyurethane Cure Time


Water or oil poly?

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Old 01-09-2018, 09:03 AM   #11
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Re: Polyurethane Cure Time


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Water or oil poly?

Tom
Good basic question, I don't have that info. Need to.

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Old 01-09-2018, 09:13 AM   #12
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Re: Polyurethane Cure Time


For oil, I thought it was a couple days just for light walking.

Floor guys around here never seem to give anyone info unless specifically asked. I wish I had a nickel for every story that involved some client who walked around barefoot at night before finish was applied the next day. Or folks that accidentally walked on a fresh floor because it's just too damned hard to put up a sign.
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Old 01-09-2018, 11:30 AM   #13
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Re: Polyurethane Cure Time


This is wholly dependant on product, applied thickness, and drying conditions. Get a text message from the floor guy stating how long before you can do your work.
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Old 01-09-2018, 07:48 PM   #14
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Re: Polyurethane Cure Time


Quote:
Originally Posted by pinwheel View Post
Yep, Im coming back one way or the other, to fix f ups, or recoat the whole floor. Might as well make it the recoat. Less stress for everyone.

One thing I emphasize strongly, no plastic to protect floors. No silicone or wax. No commercial floor cleaner, just damp mop to clean up.

Had a client one time use heavy black plastic to replace the floors while they varnished trim. Black plastic has a silicone release agent. Had a hell of a time with fisheyes on the top coat. Had to shellac everything to get the top coat to adhere.
We always have our floors done last. Like if possible, it's literally the last thing that happens on the job, sand and finish the floors, put down shoe.
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Old 01-09-2018, 08:04 PM   #15
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Re: Polyurethane Cure Time


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We always have our floors done last. Like if possible, it's literally the last thing that happens on the job, sand and finish the floors, put down shoe.
When you do that, what do you do about dust (and touch up's) on the newly painted walls?
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Old 01-09-2018, 08:37 PM   #16
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Re: Polyurethane Cure Time


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When you do that, what do you do about dust (and touch up's) on the newly painted walls?
Our guys sand with dust collection. There is very minimal dust. A cleaning crew can get it no problem. Never any touch ups on the walls from them. Sometimes we have to touch up some trim paint areas.

It allows us to not have to ramboard all the floors while we do the work.

What are the pro's to doing it the other way?

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