Asked in Home ImprovementBuilding and CarpentryChemistryGlue and Adhesives
Building and Carpentry
Glue and Adhesives
How Come 100 solids of Polyurethane based Adhesive available in Liquid Form while 100 solids of polyurethane should be available in resin form?
Asked in Cleaning, Sanitization and Germs, DIY Projects
How do you clean scott's liquid gold off wood surface to prep for polyurethane?
Can you sand then finish particle board floors with polyurethane?
What is spray polyurethane foam used for?
Spray polyurethane foam is a plastic spray that is installed as a liquid then expands many times its original size. It is used in a variety of uses including roofing, air barriers, and insulation of commercial and residential buildings. It is also used to insulate freezers, walk in coolers, and produce storage rooms. Polyurethane has also been used to increase the structural strength of wings in airplanes.
Asked in Food Spoilage
What is the shelf life of Polyurethane Finish unopened?
Asked in Cleaning, Painting and Staining, Stain Removal
How can you remove stains or blemishes from a polyurethane watch?
How do you install rigid insulation?
Cut panels of rigid insulation slightly smaller than openings. Fill in gaps around rigid panels with liquid nails or any brand of construction adhesive caulking that is compatible with stryrofoam (polystyrene) or polyurethane foam, depending on what type of rigid foam you purchased. I prefer polyurethane foam and seal the perimeter edges with Great Stuff spray foam or DAP latex spray foams. That way you don't have any heat leaks around the edges of the rigid foam even if the rigid panel is between warped rafters or studs.
Asked in Cleaning, Painting and Staining, Veins
How do you remove Polyurethane from your hands?
Mainly your options are not get it on there in the first place, or removed it mechcanically. However xylene also works, if also horrably bad for your hands! I just got polyurethane wood stain all over my hands and I tried everything to get it off with no success. I tried rubbing alcohol, soap and scalding hot water, scrubbing them with a hard brush, astringent, etc. Finally, I tried non-acetone nail polish remover and it came off instantly! As an alternative you can use the Goo Gone Spray or liquid (I used the Orange Spray). Just spray it on you hands leave it on for 10 seconds. Wash your hands with Dawn liquid soap twice, then repeat until the stickiness is gone. Then wash your hands with a gentle hand soap just to make sure you get all the harsh chemicals off. THIS IS THE BEST WAY TO REMOVE POLYURETHANE OFF YOUR HANDS! Cover you hands and where you got Polyurethane on yourself with veggie or canola oil and rub it till the polyurethane comes off then wash your hands with soap and water. I just completely covered my hands in it and found this to work AMAZINGLY! And the bonus is your hands become very soft and no more stickiness! Answer: Mineral spirits will remove oil based polyurethane from your hands, while soap and warm water will remove the water based poly. However, latex gloves will protect your hands from most of the poly that didn't make it onto your project and will allow for quick cleanup.
Asked in Makeup, Glue and Adhesives
What is liquid nails adhesive made of?
Liquid nail is made of epoxy which is a type of adhesive - - - - - There are epoxies on the market, but Liquid Nails construction adhesive isn't one of them. I looked at the Material Safety Data Sheet for Liquid Nails Heavy-Duty Construction Adhesive. It contains four basic things: a resin to make it stick together, and they don't tell you WHAT resin but it ain't epoxy (because epoxy contains epoxides and polyamines which would have to be listed on the MSDS as they are hazardous in their own right, and they're not on the Liquid Nails MSDS); ground-up stone to make it thick; titanium dioxide to make it whiter than it would otherwise be; and seven different petroleum-based solvents. The other kind of construction adhesive is polyurethane, which contains a modified diisocyanate and a modified polyol (modified so they can be mixed together and packaged in a tube without hardening; when they're exposed to the atmosphere they harden), and probably also the ground-up rock because uncured PUR is the consistency of honey--not what carpenters are expecting to see in their construction adhesive. And since this question is also in the Makeup category...the glue for fingernails is cyanoacrylate-based superglue.
Asked in Wood Crafts
What is the shelf life of Polyurethane Finish?
Officially, 6 months after opening. I have found finishes to be very expensive and shelf life is very important, I use a product called "Bloxygen", it contains an inert gas (Argon) that lays on top of your polyurethane not allowing oxygen in, thus extending the shelf life of your opened can of poly. In practice, polyurethanes will slowly polymerize in the can, forming a globby layer of cured poly, and slowly thickening the liquid poly underneath. I have not had any problems with chipping through the cured layer and using the remaining viscous product. Eventually (after several years in an opened can) it becomes difficult to even spread the thickened coating onto wood, contains unsightly bits of solid cured material, and I suspect it won't penetrate wood as well, but it does seem to dry and cure properly. That's all with an open can. Unopened, solvent-based coatings like polyurethane have a quite exceptional shelf life. I have used decades-old rusty sealed cans of polyurethane, and they appear indistinguishable from current production!
How do you remove polyurethane off of wood floors?
What liquid adhesive to use for stopping heater hose leak?
Asked in Painting and Staining, Household Hints
Can I use Water based polyurethane over flat wall paint?
Asked in First Aid
How long can an Opsite dressing be left on for?
The Smith & Nephew trademarked dressings comes in two forms: a traditional bandage and a spray-on dressing. Either should be changed if you can see liquid through the transparent coating. (Unlike some other dressings that are meant to stay on until healing is complete, OpSite is simply a breathable polyurethane bandage.) (see related link)
Asked in Science
Why water is a wetting liquid?
Water is a wetting liquid but Mercury is non wetting so not the all liquid are wetting it depends upon Adhesive and cohesive forces , the liquids having strong adhesive force than cohesive become absorbed on a solid surface and that surface becomes wet but the liquids having strong cohesive force can not absorbed on a solid surface so material remains dry and such liquids are non wetting liquids as Mercury, so water is wetting liquid due to its strong adhesive force.
Asked in How To
How To Clean Your Polyurethane Foam Couch For Beautiful Results?
Prior to cleaning your polyurethane foam couch you will need to gather the materials and tools that you will need to complete your task appropriately. This will include a vacuum with an upholstery brush attachment, fabric cleaner, spray bottle, a hose and spray nozzle, handheld shower head, fan, hydrogen peroxide, baking soda and an enzyme based odor neutralizer. Step 1. Before you can clean your polyurethane foam couch, you will need to remove any upholstery covers that may be covering the foam. Vacuum the surface of the polyurethane foam cushions thoroughly using your vacuum and the upholstery brush attachment to remove any debris, dust, mites or dander that may be in the cushion. Wash your upholstery covers in the washing machine if they are machine washable. If not than you will need to wash them out by hand in your bathtub. Step 2. You will need to fill your spray bottle with the liquid fabric cleaner that you have chosen. Make sure that you screw on the nozzle securely to the spray bottle to prevent accidental spilling. Step 3. Use a side to side sweeping motion to spray the entire surface of your polyurethane foam cushion with the fabric cleaner. Step 4. Using your tub or utility sink, thoroughly rinse the fabric cleaner from the cushion. Use a spray nozzle attachment with a hose or a handheld shower head to rinse the cushion until you do not notice any soap coming out of it anymore. Step 5. When you are finished rinsing the cushion out with clean water, begin squeezing the excess water out. Do not use a wringing method to disperse the water as this can cause damage to the polyurethane foam cushion that is not repairable. Place the cushion in the sunshine and allow it to completely dry. Spray the couch with a light coating of water and fabric cleaner. Use a dry cloth to help remove as much of the liquid as you possibly can. If you have stains in your couch, you can apply a small amount of baking soda to the stain. Then you will need to pour a small amount of your hydrogen peroxide over the baking soda. This will cause a bubbling reaction which helps to draw the stain out. Use a clean cloth to blot this area until the baking soda and peroxide are removed. Finish with a light misting of water and re-blot this with a clean cloth. Step 6. Place the couch in a sunny are where it can dry from the sunlight. Step 7. When your couch and cushions are completely dry, put the covers back on and replace them to the couch. Never put on a cushion if it is wet as this will cause the growth of molds and mildew. Step 8. Apply a light misting of your enzyme based odor neutralizer to your clean polyurethane foam couch.