Questions tagged [polyurethane]
The polyurethane tag has no usage guidance.
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Grout between bathroom wall tiles cracked due to shifting walls; can polyurethane sealant be used to fill gap?
There is a gap/crack in the grout between two columns of wall tiles in the corner of my bathroom. I think it's because of the walls shifting in an earthquake in 1999 (I live in Athens, Greece). The ...
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Concrete garage floor
A 24'x 30' concrete garage floor. How many gallons of polyurethane floor paint do I need to buy to cover with a good coat?
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Does a polyurethane floor need a very level substrate?
I'm Dutch so I might have some of the technical terms wrong.
My partner and I have been hitting up businesses because we want a PU floor in our newly built apartment, but the information we get seems ...
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Is there a polyurethane product that works both indoors and outdoors on concrete and wood? [closed]
I need to seal some stairs indoors and also an outdoor concrete slab that was recently painted. But I would refer to buy a single gallon to get it all done. Oil vs water and which product should I ...
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Where do i start when applying finish to a table? [closed]
So I'm spraying a bojo table with polyurethane. Sounds easy right!! Where should I start? Legs first so I don't have to lay the table on the topside if I where to do the top first? Does that make ...
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Should i resurface a table i applied water polyurethane to?
First time working on a butcher block that I leveled with a sander and then started to apply polyurethane.
I did 3 coats but after the third coat the surface feels very rough still and smoother in ...
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How can I temporarily seal log home repairs to make it through the winter and prepare for a full refinish next spring?
My log home has some spots where finish is failing and some logs are rotting. My plan for August and September is to remove the rotten portions of logs and replace them with new wood. I’m experienced ...
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How to remove oil based polyurethane painted over water based paint
I used oil based polyurethane to paint over trim painted with water based white paint with satin gloss. It has left a yellow hue. It's been about a week since poly was applied, so it has not fully ...
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I am finishing a table with 2 leaves- do I apply polyurethane to each leaf separately or with table as one unit? Will they be stuck together if I do?
I am finishing a table with 2 leaves- do I apply polyurethane to each leaf separately or with the table as one unit? Will the leaves be stuck together if I do?
Can Water based polyurethane be applied ...
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Polyurethane Gummy After Cure
I finished a plywood table top with varathane water-based polyurethane over a year ago. The top was hard and used extensively after curing.
Recently my daughter was playing with modeling clay (that ...
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How do I fix a sink that became slow to drain after pouring polyurethane down it?
Situation and problem
My buddy has a woodworking shop which he graciously allowed me to use for a woodworking project. I am a total novice in these kinds of areas, which will be doubly clear in a ...
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Help with table finish cracking
We have an alder table that is about 10 years old. We just noticed some cracking in the finish as you can see on the pictures. We are trying to figure out what to do to stop more from forming and what ...
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Smell from Polyurethaned Floors
I am moving into an apt in 10 days. The landlord redid the floors and used oil based polyurethane. I am concerned about the smell as he just did this several days ago and wanted to know if it’s safe ...
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Fix hardwood floor finish damaged by ironing carpet?
I did a boneheaded thing. I used medium heat iron over a damp rag to iron out some creases/curl from a couple of wool carpets, and damaged the PU finish on my floor.
How to fix this - any special ...
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Sealing indoor rough cedar wall [closed]
We have a rough cut cedar wall in a cabin that is pretty hairy and tends to flake off everywhere. I've tried sanding it but haven't had much luck, seems like it will just make it look bad. Is there ...
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Exterior polyurethane to apply outdoors in cold weather?
Is there some kind of polyurethane I can apply outdoors in 40 degree weather? The one I looked at, Helmsman Spar Urethane, appears to require a minimum temperature of 50 degrees.
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Dried bits of polyurethane in recently refinished floor?
Over the past few days I refinished the hardwood floors in my living/dining rooms. I sanded the floors with a Home Depot random orbital sander rental at the beginning of the week before applying a ...
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Water based polyurethane over water based wood stain
I made myself a small desk out of pine plywood and square tubing. I stained the pine with water based stain, then applied several coats of clear, water based polyurethane.
The last coat was applied at ...
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Avoid bubbling when applying polyurethane
Is there any way to prevent bubbles when applying polyurethane on old wood (it had paint on before but got removed, if that matters)? I just applied the first coat, will it be better after I lightly ...
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Heavier than poly transparent coat for vintage door
I got this door at a local vintage shop and stripped (for the most part) many coats of paint. I first used StripKleen, then Dumond SmartStrip, then sanded. There is a little more removal to do (...
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When do you use polyurethane vs. water based construction adhesive?
When do you prefer to use something like Loctite PL, vs Loctite Power Grab?
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Epoxy flexane mixture for flexible epoxy application
For those who understand plastics and epoxies in particular, curious to know if I can add flexane urethane (or similar elastomer) to epoxy paint without worrying about compatibility issues. IOW will ...
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Paint semi-gloss over polyurethane?
Can I paint (trim work) semi-gloss right over polyurethane without stripping it first? Would it require primer?
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Oil- or water-based polyurethane to refinish stair banister?
I didn't know that water-based polyurethane was available as an alternative to oil-based until I saw it today at the store. I am refinishing a vintage stair banister and some surrounding trim. I ...
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Varnishing at low temperatures
I need to varnish (I have an oil-based polyurethane) some piece of furniture. I can't do this in my house, but I could do it in garage, however I worry about the temperature, obviously the garage is ...
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What caulk to use for basement leaks at cove joint where floor meets the wall? Polyurethane, silicone, or latex-based Drylok?
I noticed a small moist patch of the floor near a radon mitigation system. However, I suspect that it has little to do with the radon system but was due to failed caulking at the cove joint, as there ...
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Generic water-based polyurethane for concrete desk?
I recently made a desk with a concrete top. It was a little rough so I smoothed the top with a liquid mix of just cement and water.
I'm now preparing to finish it. I have a pot of water-based ...
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Wait how long after applying wood stain before urethane pass?
I am wondering how long after applying the stain do I need to wait before applying urethane. The weather in my parts is a bit capricious, so I am keen to keep wood outside as little as possible.
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Polycrylic getting sticky and peeling/wearing off
I coated a bare wood acacia table for a computer desk with Minwax polycrylic about 4 months ago and made sure it was dried the recommended 24 hours before regular use. 4 months later, I noticed the ...
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Applying urethane to table: brush or pad?
I am finishing the stain coat of my revamped desk, and I am wondering, after much enjoying using a staining pad rather than a brush, if I could use a pad for the urethane as well — or will that leave ...
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Refinishing table, Water-Based Polyurethane Dries Fast and Leaves Blush after Sand. What to do?
Here are the facts:
Pine table
I applied a wood conditioner at the beginning.
I stained in the garage with the garage door open.
Super high humidity now.
The water-based polyurethane dries super ...
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Finish plywood for closet organizer
I am building a closet organizer using plywood. I want to put a clear finish over the plywood to protect it. I am going with either Shellac or Water-based Polyurethane to avoid the nasty smell.
I ...
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How can I fix streaks left in wipe-on polyurethane varnish?
I recently stained my cherry color builder grade kitchen cabinets to an espresso color using General Finishes Java Gel Stain. I Put on 3 coats and all went well. I then applied 2 coats of the Minwax ...
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How to apply spray-on polyurethane to a textured paint?
I am wanting to spray on coats of water-based polyurethane to a painted wood surface using a HVLP Spray Gun. The painted surface already has textured particles added into it to improve slip-resistance....
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Wood Floor Worn Spot!
I have a bamboo floor that's been work throughout the years in a few isolated spots. Because the majority of the floor looks fine, I'm hoping I can patch up the spots that have issues. I attempted one ...
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Well Pump Setup: Best Materials to Use for Pipes
I live in Southwest Florida, and we have well water. I am in the process of redoing our whole well input plumbing setup and wondering about the best materials to use.
This is what I'm proposing as a ...
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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 ...
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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 ...
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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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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, ...
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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 ...
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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 ...
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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 ...
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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 ...
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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 ...
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Can I remove polyurethane but leave the 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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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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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 ...
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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 ...
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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 ...
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