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Topic: Urethane

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	Parkway Products, Inc. - Urethanes
		Urethane has outstanding abrasion resistance, which has led to many important applications where severe wear is a problem such as roller blades wheels, snow truck blades, sand-blast mask, and coatings on aircraft engine blades.
		Urethane is considered to have excellent sliding and abrasion resistance and has out worn conventional rubber and plastics often by a factor as much as 8 to 1.
		Urethane is superior to rubber on almost all accounts, as long as, the part is designed properly.
	www.parkwayproducts.com /urethan.htm (818 words)

	Urethane
		Urethane is used alone or in combination with other drugs to produce anesthesia in laboratory animals.
		Urethane is well absorbed across the skin, shows multiple organ effects, suppresses the bone marrow, readily crosses the placenta, induces tumor formation in fetuses exposed in utero, and initiates preneoplastic changes in the skin.
		The point worth noting is that urethane appears to maintain its CV stability by a continued stimulation of the sympathetic system - catecholamine levels rise steadily throughout the period of anaesthesia.
	campusvet.wsu.edu /infofac/urethaneuse.htm (1015 words)

	Urethane-- A Viable Alternative to Varnish? (Heggen)
		The reason is because a urethane finish, unless the correct catalyst is used, can crack due to the flexing and dimensional changes of the wood it is applied to.
		Urethane goes on thinner than varnish so sand carefully to avoid sanding through on sharp edges or high spots.
		With urethane, it may look like 12-15 coats of varnish, but unless you know the method, and have the equipment, it may be a disappointing effort.
	www.acbs-bslol.com /Gadgets/Urethane.htm (1568 words)

	» Urethane Recycling (Site not responding. Last check: 2007-10-09)
		Before the early 90s, urethane manufacturers molded wheels to their final shape, and a cut was made on the back to make it match the front of the wheel.
		Urethane is a thermoset material, which means that once it is formed and reacted, it stays that way forever—unlike a thermoplastic such as nylon that can be reformed having most, if not all of its original properties.
		Once the urethane is placed in the water, it doesn’t float and it doesn’t sink, but it’s within the entire volume of the water—it has almost the same density as water.
	www.robbrink.com /2005/11/11/urethane-recycling (910 words)

	Volkswagen Urethane Bushings by Bugpack (Site not responding. Last check: 2007-10-09)
		For you technical lot out there, urethane (also referred to as polyurethane with very little difference) is the name given to a class of NCO (isocyanate) terminated resins with cross-linking or chain-extension intermediates called curing agents.
		Some types of urethane materials are radiation, fungus and bacteria resistant--in case you ever run over a radio-active bacteria-infected chuck of cheese on the road, you're protected.
		Urethane is a collection of five specific atoms arranged in a very specific way.
	www.vwtrendsweb.com /tech/0310vwt_bushings (1047 words)

	Technical Data - Precision Urethane Machine Inc.
		Urethane's abrasion resistance allows it to perform exceptionally when products are exposed to environments such as wear related erosion, impact, sliding, and impingement.
		When our urethane products are exposed to these conditions as a replacement to plastics and rubber, our customers typically see an increase in wear-life of 8 to 1 or greater.
		Urethane's exceptional load bearing capacity exceeds that of all other elastomers; it also possesses recovery and deflection properties that are unmatched by any other plastic or metal.
	www.precisionurethane.com /technical_data.html (349 words)

	Urethane/Silicone Adhesives for Bonding Flexing Metal Parts
		Adhesives that are blends of commercially available urethane and silicone adhesives have been found to be useful for bonding metal parts that flex somewhat during use.
		In experiments using single adhesives (that is, not the urethane/ silicone blends), the bonds were broken and, in each experiment, it was found that the adhesive bonded well with either the ring or with the blade, but not both.
		The urethane/silicone blend must be prepared and used quickly because of the limited working time of the urethane: The precursor of the urethane adhesive is supplied in a two-part form, comprising a resin and a hardener that must be mixed.
	www.nasatech.com /Briefs/May04/NPO30737.html (483 words)

	Urethane Polyurethane :: PSI Urethanes, Inc.
		Urethane delivers important advantages over conventional elastomers and plastics - it is stronger, tougher, more durable, and more versatile.
		With urethane, you may never have to replace your parts again.
		Since 1966, PSI Urethanes, Inc., has been the cast urethane specialist that companies around the world have depended on to gain all of the advantages of urethane for a wide range of parts.
	www.psiurethanes.com (217 words)

	Urethane foam
		Urethane Foam Insulation and Fireproofing installed in newly constructed CA (controlled atmosphere) storage.
		Pressure wash 3 each 140 feet high exhaust towers, apply hex wire to interior surface, spray poly urethane to hex wire and brick surface, apply 15 minute thermal barrier to urethane foam, coat fireproofing with 30 mils of elastomeric coating, install bird control wire and flashing at the top of all 3 towers.
		Urethane Foam Insulation and coating on the top and outside of the full digester unit.
	www.wsconline.net /urethane.htm (770 words)

	Urethane Adhesives (Site not responding. Last check: 2007-10-09)
		Urethane adhesives are characterized by flexibility, abrasion resistance, chemical resistance, high shear and peel strength.
		However, urethane adhesives are generally not suited to high temperature applications.
		Urethane adhesives bond well to plastics and films due to their good wetting and flexibility characteristics.
	www.epoxy-adhesive.com /adhesives_university/urethane_adhesives.htm (69 words)

	Toyota Urethane Products, Bushings and more - Northwest Off-Road Specialties, Inc. - Specialists in Toyota 4x4 Parts ...
		These urethane, Toyota replacement body mount sets have been designed to replace the factory rubber components which break down rapidly from oil, grease, and hard off-road use.
		The urethane bushing set with machined sleeves is a quick install.
		NWOR urethane bump stops mount over the rear axle and provide a progressive cushion when your Toyota bottoms out its rear suspension.
	www.northwestoffroad.com /parts/urethane1.html (305 words)

	Latex and Urethane FAQ
		Urethane elastomer foams, both self-skinning and not, come in various densities described as 'weights', usually in pounds, i.e.
		Urethane compounds are sensitive to the moisture in the air, which will degrade the material quickly once the can is opened.
		Urethane Elastomers vent off Tri-isocyanates, the most dangerous of the iso-cyanates, when they are mixed.
	users.lmi.net /~drewid/latex_faq.html (1513 words)

	RotorSports Racing urethane motor mounts
		Urethane motor mounts are available for 2nd and 3rd Generation RX-7's.
		Each core is then specially fitted with a urethane bushing and a special urethane disc which reduces transferred vibration without sacrificing strength.
		Urethane engine mounts give quicker shifting and improved throttle response, than stock mounts.
	www.rotorsportsracing.com /performancetuning/urethane_motor_mounts.htm (451 words)

	Marine Fenders Buoys and Floatation Foams - Urethane Products Corporation
		Urethane Products Corporation is a leading manufacturer of high performance fenders, resilient buoys and floatation foams for the marine industry.
		Urethane Products' Marine Guard TM and Marine Cushion TM fenders are constructed of a closed-cell, energy absorbing resilient foam core and a filament reinforced, tough polyurethane skin.
		Urethane Products manufactures USCG approved, closed-cell floatation and buoyancy foams, which are available in pre-manufactured billets or a two-part liquid you mix (50:50 ratio) and pour yourself.
	www.urethaneproducts.com /marinefenders.html (391 words)

	FDA/CFSAN FDA Consumer: Urethane in Alcoholic Beverages Under Investigation (January/February 1993)
		Urethane is a chemical substance that forms naturally during the fermentation process.
		Urethane levels in wines are getting lower, according to FDA supervisory research chemist Frank L. Joe, Ph.D., who has assembled statistics from the summaries.
		It's also improving methods for cleaning stills to cut down on the buildup of urethane or other chemicals that might form, and it's monitoring the operation of the stills so that urethane is not carried by distilled vapors into new batches.
	vm.cfsan.fda.gov /~frf/fc0293ur.html (1617 words)

	Trim made simple with urethane millwork - The Clarion-Ledger (Site not responding. Last check: 2007-10-09)
		Another advantage of urethane millwork is that it is practically maintenance-free once installed.
		Urethane millwork is easy to work with, but the key to a satisfactory job is following the manufacturer's instructions carefully.
		When installing urethane trim, keep in mind that, even though it feels very strong, it is strictly for decorative applications.
	www.clarionledger.com /apps/pbcs.dll/article?AID=/20051125/COL07/511250311/1194/FEAT03 (692 words)

	Maximum Motorsports - Front Urethane (Site not responding. Last check: 2007-10-09)
		Unlike rubber, urethane is unaffected by oil and grease, and it lasts longer.
		It is usually caused by lack of lubrication, poor installation, incorrect part, or urethane that may be too hard for the application.
		In urethane bushings, graphite is an attempt to serve as a lubricant to reduce friction between the pivoting areas.
	www.maximummotorsports.com /urethane_front.asp (439 words)

	Resin Urethane
		A room-temperature curing, two-component urethane rubber mold making system that's ideal for artwork and special effects(not to be used on skin.) When blended in a one to one ratio by volume, it gives molds of superior quality and high reproductive fidelity for use with resin, epoxy, wax, plaster, and other casting materials.
		Por-A-Kast II Por-A-Kast II is a room-temperature curing urethane casting material that is excellent for casting artwork from either rigid or flexible molds.
		Por-A-Kast II is a room-temperature curing urethane casting material that is excellent for casting special effects, artwork from either rigid or flexible molds.
	www.artmolds.com /category76.cfm (487 words)

	Dallas Ft. Worth Urethane, Inc. - Foam Roofing and Insulation Contractors in Dallas Ft.Worth
		Dallas Ft. Worth Urethane installs the sprayed polyurethane foam (SPF) insulation as well as a roof system that has a documented proven performance of 26 years (from a database of 1500 roofs across the United States).
		Dallas Ft. Worth Urethane has installed 150 roofs, with a combined area of 2.5 million square feet of urethane, elastomeric and acrylic coated SPF roof systems ($5 million) in the last seven years, as well as installed Spray Polyurethane Foam Insulation in residential and commercial buildings.
		Dallas Ft. Worth Urethane is one of the qualified applicators for Neogard's urethane coated SPF roof system that has just been tested by the PBSRG for hail resistance using Factory Mutual's severe hail test.
	www.dfwurethane.com (448 words)

	Urethane Bushings
		The fl urethane compound is intended as a standard replacement for the OEM rubber bushings and are specified as having a durometer rating of about 70.
		The red urethane compound is intended for high performance applications and will have a durometer of about 95.
		The first is that urethane bushings are designed to "rotate" on a surface as opposed to the OEM rubber bushings which operate by twisting the rubber between the bonded shells without actually rotating.
	www.engravers.com /tiger/tech/urethane/ar-STOAbushings1.html (632 words)

	Science of Skateboarding: Skateboard Design: Wheels
		The urethane wheel and the press-in precision bearing changed skateboarding forever, and led to the next big explosion in skateboard popularity.
		The first urethane wheels were the handiwork of Frank Nasworthy, who, after seeing some experimental urethane roller-skate wheels in a friend's backyard in 1970, realized that such wheels could be used for skateboards.
		A resilient urethane wheel returns to its round shape very quickly, pressing back out against the pavement before the wheel loses contact with the ground.
	www.exploratorium.edu /skateboarding/skatedesignwheel.html (595 words)

	Stevens Urethane Aliphatic TPU Offers High-Clarity Bonding For Glass Laminations
		In addition, Stevens Urethane is unaffected by weather variations and the hot and cold temperature extremes that glass is commonly exposed to.
		All Stevens Aliphatic Urethane is manufactured and packaged in Class 10,000 clean zone environments to ensure delivery of the highest possible quality optical grade aliphatic sheet with no contamination.
		Stevens Urethane is the only company in the world to offer urethane in blown film, extruded sheet, tubing, cord, and profile form.
	www.stevensurethane.com /newsroom/aliphaticNR.html (424 words)

	Epoxy/Urethane Blog
		The epoxy or urethane being substituted must be fully tested to confirm its performance characteristics even if the processing appears to be identical.
		In the epoxy and polyurethane industry, whether the requirement is for epoxy potting, urethane adhesive, tooling resin or laminating epoxy, it is the knowledge and the innovation capabilities of the sales person that is most important.
		This is not only true in the epoxy and urethane formulating business where subtle differences can occur in some chemistries but can take place in just about any manufacturing industry.
	www.crosslinktech.com /epoxy_urethane_blog.htm (8756 words)

	Epoxy and Urethane news from Crosslink Technology Inc. (Site not responding. Last check: 2007-10-09)
		Many users of epoxy and urethane base resins are accumulating stock, in anticipation of shortages, further increasing the short term demand for these materials.
		Confirming the ultimate suitability of an Epoxy or Urethane compound in the manufacturing environment is a relatively costly project.
		The fact of the matter is that 99% of the epoxy and urethane formulations were invented because someone needed a specific material for a specific job.
	www.crosslinktech.com /epoxyurethanenews.htm (2807 words)

	Urethane Adhesive Remover (Site not responding. Last check: 2007-10-09)
		DriTac Urethane Adhesive Remover is formulated to remove wet or uncured urethane adhesive from wood flooring surfaces.
		Cured urethane adhesive is very difficult to remove, so it is imperative that care be taken to remove any excess urethane adhesive from the wood flooring surfaces before it has completely dried.
		If urethane adhesive is allowed to dry on the flooring surface, it will be extremely difficult to remove without harming the floor's finish.
	www.directwood.com /products/accessory/adhesiveremover.htm (389 words)

	Solid Concepts Inc. - Urethane Castings
		The mold is then reassembled and the urethane material is poured into the mold to create the urethane casting.
		Made from inexpensive silicone rubber molds, urethane and epoxy castings are an ideal way to closely simulate final injection molded plastic parts.
		Solid Concepts is on the leading edge of urethane casting technology, with a wide variety of shore D, shore A, clear, and UL-rated materials available.
	www.solidconcepts.com /urethanecastings.html (555 words)

	Sunray Inc. - Manufacturer of Polyurethane Wheels, Rollers, and Custom Urethane Parts!
		Because of inherent advantages in low heat build-up, polyether-based urethanes are recommended for applications undergoing medium to high stress.
		In addition to high load-bearing properties in both tension and compression, urethanes have a high load-bearing capacity in shear.
		Polyester-based urethanes are generally not recommended for water uses.
	www.sunray-inc.com /urethane.html (1106 words)

	Liquid Rubber: Urethane Rubbers from Smooth-On's Online Store
		ReoFlex urethanes are available in 30A, 40A, 50A and 60A Shore hardnesses and feature convenient one-to-one by volume mix ratios.
		PMC-121/30 Dry and PMC-121/30 Wet are exceptionally strong and abrasion resistant for soft urethane mold rubbers.
		Clear Flex 50 and Clear Flex 95 are water white clear urethane liquid rubber compounds designed for applications that require absolute clarity and resistance to sunlight.
	www.smooth-on.com /urethanes.asp (1470 words)

	Frp Encyclopedia
		Foams, Urethane- Polyurethane resins are produced by reacting diisocyanates with polyols to form polymers having free isocyanate groups.
		Foams, Flexible– A thermoplastic urethane foam which is adaptable and often used for cushioning in the furniture and automotive industries.
		Foams, Rigid- A thermoset urethane foam which has a higher density, higher modulus, and harder surface than flexible urethane foams.
	www.kemlite.com /frp_encyclopedia.cfm (2564 words)

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