Questions tagged [polyurethane]
The polyurethane tag has no usage guidance.
104
questions
6
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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
votes
1answer
27 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
votes
0answers
35 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
1answer
73 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
votes
0answers
476 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.
...
0
votes
2answers
48 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 ...
0
votes
2answers
469 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
votes
0answers
39 views
Flat roof, polyurethane sprayed ceiling, holes in a air and vapour barrier
Ok guys, I really made a mess. I hired someone to spray my flat roof garage. I was going to put rockwool, but after researching those issues with flat roofs, i choose SPF closed cell.
But it's not ...
0
votes
1answer
65 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
votes
1answer
51 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
votes
1answer
56 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
vote
1answer
480 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 ...
1
vote
0answers
37 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
183 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
votes
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
votes
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
votes
1answer
163 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
804 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
vote
1answer
65 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
votes
1answer
861 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
votes
1answer
308 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 ...
-1
votes
1answer
486 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 ...
1
vote
3answers
208 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
votes
1answer
107 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 ...
1
vote
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 ...
1
vote
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 ...
0
votes
0answers
403 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
votes
1answer
386 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
votes
0answers
145 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
votes
2answers
415 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
5k 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
votes
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.) ...
1
vote
2answers
6k 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
votes
1answer
671 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 ...
1
vote
2answers
11k 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. ...
1
vote
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
67 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 ...
1
vote
3answers
2k views
Is a “painting pad / sponge square” indeed the way to get a smooth wood surface after applying polyurethane?
My last polyurethane finishing experiment failed. I applied fast-drying Varathane to 3/4" maple plywood shelves. They were very finely finished before applying the polyurethane, and became very rough ...
0
votes
1answer
3k views
How hard should water based polyurethane get?
I made a farmhouse table and stained it with Rust-oleum water based stain and then use the Varathane Triple Thick Polyurethane on top. I have let the table sit out in the garage for a week to cure, ...
0
votes
1answer
355 views
Is this red oak or white oak hardwood flooring?
I am planning to change a room that has laminate flooring to a room that has 3/4" hardwood flooring. The rest of the adjacent rooms and hallways all have hardwood flooring 3/4".
Initially I planned ...
3
votes
4answers
2k views
Paint vs polyurethane durability
For an indoor project that is likely to get bumped, knocked, etc. (e.g., door or window casing, cabinets, built-in bookshelves, etc.), should one expect that a good quality paint will resist chipping ...
2
votes
2answers
48k views
How best to remove fumes after applying polyurethane in a hardwood refinishing project?
I understand that oil based polyurethane used to refinish hardwood floors has a strong fumes and can stay for days. I also understand that opening the doors and letting air flow can help remove the ...
2
votes
2answers
357 views
Can I use 0000 steel wool to remove streaks in my polyurethane finish?
Can I use 0000 steel wool to make a better uniform finish?
2
votes
4answers
4k views
streaks in polyurethane finish on freshly stained farm table
I applied too much polyurethane finish on newly stained wood farm table while applying third coat. I tried sanding with 220 grit and applying a 4th coat but there are still very visible streaks. ...
1
vote
1answer
3k views
How can I remove scratches in polyurethane?
My husband and I have been building a farm table and we are oh-so-close to being done, but we are having issues in the final coats of polyurethane on the top. Here's a rundown:
We stained the wood ...
1
vote
2answers
2k views
How do I avoid taking off the finish at the corners when sanding between coats?
I just refinished a dresser with a tinted poly finish to roughly match the other wood tones in its new room. I didn't do the greatest job in many aspects - it was my first experience with poly and I ...
2
votes
2answers
546 views
Can I follow shellac with polyurethane (water-based or oil)?
I just finished building kitchen cabinets out of African mahogany. I am ready to finish the project and I would really like to not screw it up. I'm wanting to use an oil-base penetrating stain and ...
1
vote
0answers
135 views
Dust after staining and poly advice
Two questions: How should I prepare for applying poly to new stain? I am refinishing a wood veneer table top. I stripped it back to the wood, and I have stained it with Old Masters Wiping Stain, ...
