Questions tagged [polyurethane]
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115
questions
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0answers
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Vapor barrier VS polyurethane
We have a non-finished basement where vapor barriers and mineral wool is already installed.
The basement has one face which is not underground (the house is built on a slope).
A contractor advised ...
2
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1answer
87 views
My apartment still smells like polyurethane after over a month! I have a toddler with respiratory issues, please help
I just moved into a recently renovated apartment. I am not sure exactly what work was done or what products were used. It has new parquet wood floors and the place was sitting empty for a month. I ...
1
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2answers
39 views
Ventilation when using water-based stain & finish
With oil-based stains and finishes, reading SDS safety sheets makes it clear that safely using the products requires nitrile gloves, serious ventilation, and a respirator that can handle VOCs.
With ...
0
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1answer
26 views
Which Glue for Refrigerator Door
Our refrigerator has two little nubs built into the door that holds the butter door on. One of the two nubs cracked off, exposing the insulating foam underneath. I was going to use a super glue ...
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1answer
107 views
Adhesive that binds strong but can be cleanly removed
I have something I need to bind strong. Much stronger than super glue, but probably less than gorilla glue, although it's not bad if the bind is that strong.
I need it to have a quick setting time, ...
1
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1answer
29 views
Does water based polyurethane affect the color of paint?
I recently painted a dresser. I originally painted it a darker gray than I wanted so after putting the initial two coats on I took the paint back to Home Depot and had them lighten the rest of the ...
2
votes
3answers
275 views
Saving a brush from dried water-based Polyurethane
Today I got distracted while applying some Minwax Pro Spar Urethane (which apparently is water-based) and left the brush sitting on top the can. The distraction lead to a trip to lowes and the ...
2
votes
3answers
59 views
Can I use polyurethane sealant with Plexiglas?
I have a below-grade basement window in a lightwell. In heavy rain, the lightwell fills to the bottom of the window and then the water leaks into the basement. I've been through a lot of options and ...
1
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1answer
352 views
How long to wait between coats of polyurethane?
I sanded down a 2 inch old Maple butcher block bowling alley and stained 48 hours ago. I then applied 2/3 poly to 1/3 mineral spirits and let sit in direct 80 degree sun from 10-4 pm. It was ...
2
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1answer
108 views
Why does my wooden table have streaks after refinishing it three times?
Months ago I purchased a French expansion table. I painted the table legs white and I am refinishing the top and expansion pieces in a dark stain with a semi gloss poly finish (Minwax). I noticed ...
0
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1answer
44 views
Remove Polyurethane - Keeping stain, to add additional stain
I recently finished several doors in our house, using two coats of stain - one each of a different stain - and polyurethane to finish. For one door, I forgot to put on the 2nd coat of stain by ...
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2answers
31 views
Can I use polyurethane to coat a painted wall tile and safely use as a trivet?
I would like to hand paint ceramic wall tiles to use as a food trivets. If I coat the tiles with polyurethane, to prevent the paint from chipping off, will it be safe to use as a trivet for hot pans ...
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6answers
1k views
Would it be appropriate to sand a floor between coats of poly with a handheld orbital sander?
Very closely related: How should I sand before the final coat of polyurethane?
However, I'm not asking for a how-to or which is the preferred tool/method but rather one specific tool and if it's an ...
0
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1answer
33 views
Refinishing Outdoor Wood Table
About 3 years ago I built an outdoor patio table from home depot pressure treated lumber. I walnut stained it and applied 3 layers of Helmsman spar urethane. It looks like the sun/rain has worn down ...
0
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0answers
57 views
Polyurethane shows oil when touched?
I finished a set of pine 2x12's that will be shelves for a bookshelf using the following process.
Sanded the boards with 80, 120, and 220 grit
Stained the boards with Minwax oil-based Early American ...
1
vote
2answers
154 views
How are Clopay Intellicore garage door R-values so high?
Clopay's garage doors with their proprietary "Intellicore" polyurethane foam insulation claim R-values as high as 20.4 in a 2" thick door, or R-10.2 per inch.
State-of-the-art spray polyurethane ...
0
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0answers
1k views
What is mineral spirits called in Australia?
I'm looking at cutting Polyurethane to use for a rub on finish, and the marvellous instruction articles and videos all say to do this with "mineral spirits". I am in Australia and unsure what this is.
...
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2answers
58 views
Polyurethane finish over stained wood - can I combine brush and rub on techniques?
I am finishing a coffee table with Polyurethane. Used it many times, but have never managed to completely eradicate those pesky brush marks on the final finish, despite sanding between coats.
So this ...
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2answers
774 views
How drill polyurethane properly? [closed]
I am building an electric skateboard for which I bought a pulley with a belt that will transfer torque from the motor. This pulley is mounted on a wheel with 5 M3 screws and here is the problem. All ...
0
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1answer
130 views
Will wood glue hold two pieces of wood with a polyurethane finish?
I have a piece of stained red oak plywood that is 1/4" thick and ~ 1 square foot in area. I will be gluing it to a 1" x 2" red oak board. Both the plywood and board have been stained and finished ...
0
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1answer
66 views
Is there a rubber type glue that sets in under 5 minutes?
I'm looking for a very strong glue, similar to sikaflex 227
Sika Sikaflex 227 Polyurethane Sealant Black is a one component, moisture curing, elastic adhesive/sealant that is used for ...
2
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1answer
60 views
Can hand-rub poly be poured (in drops) then spread?
The last time I applied polyurethane, I chose a variety called "diamond something or other". It turned out that the diamond variety dries so quickly that if I apply a brush stroke one way and then ...
1
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1answer
582 views
Reapplying spar varnish/urethane to exterior door
I have a 'knotty alder' front door that was refinished by a contractor last August. However, because the lower panel of the door has already deteriorated due to sun exposure, I decided to sand the ...
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0answers
38 views
How to determine the type of finish used on a piece of furniture?
I have a table that I want to add another clear-coat layer to (to smooth and level without sanding). It's already stained and sealed, so I want to choose a clear-coat (polyurethane, lacquer, epoxy) ...
2
votes
2answers
216 views
How can I blend sanded cedar into the surrounding darker wood with a polyurethane finish?
I applied unfinished cedar tongue and groove wood, to my ceiling and I applied one coat of minwax fast drying clear polyurethane to it.
I noticed that one of the sections turned a light grey and ...
0
votes
2answers
2k views
Will filling gaps with epoxy in a new hardwood floor look ok?
I installed a floor made from locally produced, 3 1/4" hard maple. There are a few gaps under 1/16th of an inch that I don't like. I normally buy the best product for the application, but the stores ...
0
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1answer
29 views
Spot re-staining a shelf post poly?
I have some shelves I'm finishing using Minwax Wood Finish and MinWax Semi-Gloss poly. On one side of one of the shelves, there are some small damage marks.
Long story short: Some masking tape got ...
2
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0answers
1k views
How to remove polyurethane from painted wall
I forgot to tape around a shelf that I covered with polyurethane and some got on my painted wall.
I'm not sure what kind of paint it is but it will buff off with a wet cloth if you rub it too much, ...
0
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1answer
171 views
How to water proof chipped concrete around garage door
How do I water proof this cement wall around the garage door:
Can I use something like a polyurethane crack filler or something:
http://www.homedepot.com/p/Loctite-PL-10-fl-oz-Polyurethane-Concrete-...
0
votes
1answer
941 views
Using liquid sandpaper (deglosser) with polyurethane varnish
Revarnishing kitchen cabinets, using polyurethane (oil base) over existing varnish. Can I use liquid sandpaper to degloss the old varnish? What about in between coats of the new? Thanks!
1
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1answer
97 views
What product to use for sealing a wood tv stand
I just finished building a tv stand (it is basically the same design as this one but with modified dimensions to be bigger: http://www.ana-white.com/2012/05/plans/rustic-x-console) and have stained it ...
0
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1answer
1k views
What materials can be used to prevent polyurethane glue from sticking to unwanter surfaces?
I am making some board and batten shutters and am using four 5-inch boards to assemble each shutter (each board is ¾ x 5). Since they are going to be outside the house and exposed to the elements,...
0
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1answer
386 views
Does it make sense to apply a (Minwax) wax paste on top of a polyurethane/stain finish?
I have just finished a piece of wood that I intend to use as a writing/work desk with a polyurethane stain. I've seen some talk of it possibly being a good idea to apply a coat of rub-on paste wax on ...
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1answer
538 views
Should additional coats of polyurethane be applied after removing roughness?
Why did polyurethane make wood feel coarse?
In reference to the above thread...
If the first suggested solution seems to work to solve the coarseness issue, i.e. "polishing" the rough areas with ...
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3answers
269 views
How should I handle areas of soft polyurethane left after sanding?
Following 24 hour drying, sanding with 120 grit using handheld belt sander on very old pine floor, I vacuumed then damp mopped. Now I have spots of gummy poly throughout the floor. How do I proceed to ...
0
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1answer
153 views
Polystyrene scent in bedroom
I want to store boardgames on the top of the wardrobe in my bedroom. Unfortunately, there are a few screw and wooden lists on the top of it, which makes it impossible to store anything on the ...
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1answer
3k views
Changing sheen of polyurethane finish
I recently purchased a can of tinted polyurethane finish and applied it to the top of a desk. The desk had previously been finished but the old finish was cracked and coming off so I had stripped and ...
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2answers
1k views
Can water based polyurethane be used to prevent knots in pine wood from bleeding through white paint?
I am renovating an old house and, long story short, we have some very knotty solid pine wood planks. They're the economy - or "cottage grade" as menards calls it - tongue-and-groove, beadboard 0.5x4 ...
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0answers
502 views
Cover vinyl asbestos floor tile without making later flooring harder
I have a kitchen with 9"x9" vinyl floor tiles that I have just found out contain asbestos. Though they are at first glance in sound condition (only a very few small chips, all well-adhered, etc), ...
0
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1answer
492 views
Can I apply polyurethane to a new table? [closed]
I'm buying a new kitchen table and dining room table, and I'm trying to keep them from getting scratched from regular use. Can I apply several coats of polyurethane to a brand new table top to make it ...
0
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0answers
158 views
Polyurethane on damaged floor isn't creating smooth surface
I had the wood floor chipped from heavy object played on it, removing the varnish that covered that small area. I tried to fix it by first sanding, then polyurethane on a cotton swab as the affected ...
0
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2answers
473 views
Do I need to sand before recoating a worn polyurethane finish?
I polyurethaned a tabletop and some spots have worn off. What is my best option to fix this? Do I have to sand the whole top and re-apply?
4
votes
1answer
6k views
Are there masks that will reduce polyurethane's VOCs?
Cans of polyurethane state a number (250, 350, etc) of Volatile Organic Compound (VOC).
When sanding wood, a NIOSH N95 is required to safely avoid inhaling the small particles, but..
Does a NIOSH ...
0
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2answers
5k views
What sandpaper grit should I use between coats of varnish?
I have just varnished pine furniture and due to my complete beginner skills, I did not paint it correctly. (I went over my previous strokes after the varnish was tacky and it now has a rough finish.) ...
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2answers
7k views
Applying polyurethane to a vertical surface?
I have built a set of free standing pantries. Each is about 3' wide, 2 feet deep and 6' tall made out of a combination of 3/4" maple plywood and maple hardwood. I have them all stained and they look ...
0
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1answer
877 views
Refinish Sections of Hardwood at a Time
The most feasible method of finishing all the hardwood in the home I am living in is one room at a time. The rooms all connect to a hallway.
Will there be an ugly area (if I do one room's hardwood ...
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vote
2answers
12k views
Can wallpaper be coated with a protective finish?
I want to use wallpaper as the decorative top to some nightstands I plan on making. The wallpaper by itself would probably not last too long especially with cups/glasses being set on them frequently. ...
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2answers
1k views
Polyurethane Curing - will blue tape or dropcloths damage it?
I just sanded, stained, and polyurethaned the floors in a house I am refinishing. I put on 2 coats of Ultra-Fast Drying Polyurethane for Hardwood Floors on Monday, surface sanded and added a 3rd coat ...
1
vote
1answer
69 views
Does oil-based polyurethane have any residual toxicity past setting?
Oil-based polyurethane reportedly has some toxicity during application, but it is easier to apply and provides a superior finish compared to water-based polyurethane.
This means that while I may get ...
1
vote
2answers
3k views
Polyurethane “separating” on table top
Refinishing my kitchen table. The process so far: strip, sand (progressively moving through the grits), condition, stain, finish, sand,'finish again.
Any ideas as to why a coat of Oil-based ...
