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polyurethane shoes toxic

The leather case is softer than the polyurethane case and will show wear over time.Polyurethane iP… Toxic-Store - Shop für Street & Urbanwear Accessories, Caps, Schals, T-Shirts, Jacken, Mütze, Hosen von Brands wie Cayler & Sons, TrueSpin, Chupacabra, West Coast Choppers und vielen mehr. But as I say in the title of this post, the PU is The Material to Rule them All, the Ring of Power, and even against the almighty EVA is achieving to defeat it. It's insulating and will work well on a faux leather jacket, is soft, durable, lightweight and versatile. As the pioneer of water based polyurethane shoe adhesive, Bigger is famous for its environmental protection, clean taste, non-toxic and non-toxic. Avoid furniture cushions and mattresses made from polyurethane foam/plastic as well as any fabric with acrylic, polyester or polyvinyl chloride, all of which can be toxic to the respiratory system. Its versatility makes it suitable for a plethora of applications because it can successfully substitute many materials that are either expensive or scarce. Polyurethane is also very flexible and it lasts a long time. Shop Shoes.com's huge selection of Polyurethane Mens for Men - Over 260 styles available. indoor shoes, or slippers), down to the 0.2 to 0.3 g/cm3 of midsole material for sport shoes, or flexible insoles that provide comfort to our feet. The Polyurethane. Polyurethane comes in many shapes and forms. One material to find them. This chart can serve as a benchmark for assessing the quality of material that can be found to make the shoe sole. Polyurethane, a petrochemical resin that contains isocyanates, is a known respiratory toxin. Alibaba.com offers 1,350 shoe industry polyurethane products. If we start with the compact materials, there are two powerful enemies of the polyurethane, leather and vulcanized rubber. With over 50 years of industry experience, our broad and versatile product portfolio of isocyanates, polyols, polyurethane additives and surfactants as well as polyurethane systems allow fast cure, excellent flexibility, superior bond strength and much more. But if we return to the previous graph, and we put all values ​​of abrasion resistance of different materials tested, along with its density, from compact materials to lower density materials, we will see that the initial hypothesis is approximately fulfilled, although not obtaining a line, but a cloud of points, as follows. While most polyurethanes are thermosetting polymers that do not melt when heated, thermoplastic polyurethanes are also available. But where the EVA has been until recently unbeatable is in sports shoe midsole. But its main advantage is the comfort, provided due to the rebound. Smart covers for the iPad mini and the iPad are available in both leather and polyurethane.Leather iPad covers cost $69 and are available in cream, tan, black, navy blue, and red. Polyurethane fabric, or PUL fabric, is a waterproof fabric, typically polyester, but may be cotton or a polyblend material that has been heat-laminated to a polyurethane layer. The bug not only breaks the plastic down but uses it as food to power the process. Polyurethanes adhesives are well suited for this use since they provide a very strong bond, that can make the shoes last longer. Polyurethanes are one of the most versatile plastic materials available. Follow up with a microfiber cloth to remove any water spots, bringing out the shine expected from the shoe. One Material to Rule Them All - The polyurethane in the Footwear Industry Published on February 19, 2015 February 19, 2015 • 186 Likes • 23 Comments This section explores some of the more common applications of polyurethanes and provides an insight into their use. Virtually all running shoe in the world produced in the last 30 years has an EVA midsole. Polyurethanes are found just about everywhere in modern life; the chair you are sitting on, the bed you sleep in, the house you live in, the car you drive – all these, plus innumerable other items you use contain polyurethanes. It is lightweight and extremely durable. Polyurethane foam is made from petroleum-byproducts and is highly flammable. Moving ahead, is essential that the public be educated about the contents of routine products like paint and flooring coatings. But, in the end, there must be much empty space (actually full of gas, which may be air, carbon dioxide or some other) so that the entire structure weighs less than water, and therefore its density is lower. Durability of shoes. Shop All; Primers Wall & Ceiling Primers Trim/Furniture/Cabinet Primers Wood Primer Stain Blocking Primer Air Purifying Primer Pet Primer ... Over time, the polyurethane will become less and less toxic," writes Josh Arnold on SFGate Home Guides. This material would withstand the abrasive contact for a long time, and the abrasion resistance could be easily determined, considering the hardness of both materials (the abrasive roll, and the material of the sole). It is used in shoes, mattresses, furniture, raincoats, tents, pillows, carpet padding, and seats in planes and trains. Nota: este post también está disponible en español, en mi blog personal: http://agorafiliaweb.blogspot.com/2015/02/material-unico.html, This website uses cookies to improve service and provide tailored ads. Polyurethane Mens Sale: Save Up to 80% Off! Polyurethanes allow designers to meet all of these objectives. Traditionally, leather production and the tanning process use several toxic chemicals, which produce pollution in our interior and exterior environments. This repaired shoe is probably, like many shoes, soled with polyurethane. A hypothetical abrasive roller, which simulates the ground contact of the sole, will not find any gap where it can start the wear against the material (except, of course, the material surface defects, even if they are very small). The vulcanized rubber was introduced as a material for making soles over 50 years ago and presented a major technological achievement: with rubber soles, the soles became waterproof, allowed to keep warm feet and dry, especially in the winter months. This results in considerable water pollution, particularly in developing countries. And in almost all the "fighting" it comes out very well. Good footwear should be comfortable, long-lasting and fit for purpose – not to mention affordable. Zahnriemen Polyurethan (PU) für Firmenkunden im Haberkorn E-Shop. Light but highly abrasion-resistant polyurethanes are perfect for hardwearing shoe soles, with excellent long-term mechanical properties. Wrapping up, if we consider all possible combinations of materials that are used to separate your foot off the ground, it is very difficult not to find the polyurethane becoming part of some of the layers: skate, floor, sole, midsole, insole, etc. Furthermore, regardless of their open or closed structure, we can have thinner or larger cells. We and third parties such as our customers, partners, and service providers use cookies and similar technologies ("cookies") to provide and secure our Services, to understand and improve their performance, and to serve relevant ads (including job ads) on and off LinkedIn. The PU coating is applied to a single side of the base fabric and then treated to look more like animal hide. Top Marken! Ultimately, VOCs are considered harmful to human health and should be avoided when possible. Leather shoes that get scuffed or worn in spots can be touched up with new dye then polished and look close to new. Although best known for sports and trekking shoes and boots, they are also extensively used for business and fashion shoe soles, as well as high-quality safety shoes. The "lifelong" shoe sole (or as Yanko, Iruin says in his highly recommended post "The Chemistry of a shoe sole" http://elblogdebuhogris.blogspot.com/2014/12/la-quimica-de-una-suela-de-zapato.html "A sole as it ought to be") is made from leather. Polyurethane (PU) is a composite material made of: (1) one or more layers of polymer resins joined by urethane links; and (2) a woven or non-woven textile backing such as polyester, cotton, nylon, or ground leather. wedge soles for female shoes), the 0.3 to 0.4 g / cm3 for low requirement soles (e.g. By contrast, innovative manufacturing techniques make … Jetzt bestellen! People often stop wearing shoes merely because they have gone out of fashion, but the durability of polyurethanes ensures that shoes containing this material have considerable second-hand value. When scientists discovered that polyurethanes could be made into fine threads, they were combined with nylon to make more lightweight, stretchable garments. Polyurethane foam, which can cause bronchitis, coughing, and skin and eye irritations, may also release toluene diisocyanate, which can produce severe lung problems. Neither design ease, waterproofness, breathability, insulation, etc. 24-h-Lieferung! Polyurethane polymers are traditionally and most commonly formed by reacting a di- or triisocyanate with a polyol. But I regret to tell you, dear Owl, that although the leather sole has its advantages (I also like the sound of a leather sole, from a good and stylish pair of dress shoes) durability is not one of them. Home » Where are polyurethanes found? One material to bring them all, and in the darkness bind them. Polyurethanes are formed by reacting a polyol (an alcohol with more than two reactive hydroxyl groups per molecule) with a diisocyanate or a polymeric isocyanate in the presence of suitable catalysts and additives. FREE Shipping & Exchanges, and a 100% price guarantee! About 9% of these are Adhesives & Sealants. Polyurethane chemistry is complex, but the basics are relatively easy to understand. A portion a portion of the red color's proceeds will be donated to Product Red, a for-profit company that in turn donates a part of its revenue to charity. In general it can be said that the properties of durability in the material are directly proportional to its density. A bacterium that feeds on toxic plastic has been discovered by scientists. Within the shoe sector, polyurethanes are found in a wide range of footwear types. Over the years, polyurethanes have been improved and developed into spandex fibers, polyurethane coatings for fabrics, and thermoplastic elastomers. Although best known for sports and trekking shoes and boots, they are also extensively used for business and fashion shoe soles, as well as high-quality safety shoes. Polyurethane Fabric. If you do not know what's between your foot and the ground, the answer is easy: The One Material, which rules them all. Polyurethane can produce toxic fumes when melting or burning, but as a final product, there is no health hazard at all. He … Simply wiping the shoe down with a damp cloth and a little laundry or dish detergent is effective in getting off most dirt and grime. Effects of Polyurethane to the Body. » Footwear. In a liquid form, polyurethane resin can be molded to the desired shape, and then sanded smooth after hardening. “In fact, fire marshals refer to polyurethane foam as … Select Accept cookies to consent to this use or Manage preferences to make your cookie choices. By using this site, you agree to this use. Green polyurethane is now suggested by the environmental protection bureau and may be a valid choice and non-toxic polyurethane. The space between your foot and the ground is a fascinating world. We could say that this material represents the lowest density that can be used as a shoe soles material. Rue Belliard 65 Is Polyurethane Foam A Dreamy Comfort Or Toxic Nightmare? Even if you’ve never heard of polyurethane foam, odds are high that it’s somewhere in your home — and some reports suggest that it could endanger your health. The properties of a cellular material will depend on many factors: the amount of empty space inside, how that empty space is connected, the type of gas filling the empty space, and finally the properties of the material which forms the structure. The overall toxicity of polyurethane materials followed a similar trend to their HCN yields; with flexible foams generally being the least toxic, rigid foams being slightly more toxic and polyisocyanurate foams being the most toxic. This is a main reason why it's important to look for an affordable non toxic mattress and a quality non toxic crib when purchasing one for your infants or children. A variety of materials have been used since the beginning of the history of footwear, over 10,000 years ago in the late Paleolithic period, to protect our feet against the many dangers that lurk from the different types of land beneath our feet. ISOPA – European Diisocyanate and Polyol Producers Association A material to rule them all. In this case, the material developed for this arduous battle in the Southern Zone of Middle-Earth is the next one: micro pre-expanded TPU. Compact materials (relative density 1 or higher) have virtually no voids therein, and therefore they present the "complete" properties of the material. We use cookies to ensure that we give you the best experience on our website. Polyurethanes (PUs) are a class of versatile materials with great potential for use in different applications, especially based on their structure-property relationships. If we repeat the same thing for other different properties, we will see that a rather similar graph is usually obtained. See our, http://elblogdebuhogris.blogspot.com/2014/12/la-quimica-de-una-suela-de-zapato.html, http://www.polyurethanes.basf.com/pu/KUInternet/KU/en_GB/content/Industries/Footwear, http://www.polyurethanes.basf.de/pu/solutions/en_GB/function/conversions:/publish/content/group/News_und_Medien/FootwearNews/Footwearnews_01_11.pdf, http://tecnologiadelosplasticos.blogspot.de/2012/06/etilvinilacetato-eva.html, http://agorafiliaweb.blogspot.com/2015/02/material-unico.html, BRAZUCA, the official ball for the World Cup…. Furthermore, it can also irritate skin and cause … PU soles may crumble due to hydrolysis. Such a light material, and with such a high elasticity, has a peculiar touch, that everyone can enjoy making wars with famous "pool noddles". Turning to the lower density materials, cellular PU covers a huge range of densities between almost compact (density 0.9 to 1.0 g/cm3) through the usual 0.6 to 0.5 g/cm3 for high quality soles, the 0.4 to 0.5 g/cm3 for the thicker and lower requirement soles (e.g. Urethane foam is everywhere — it’s under your carpet, in your furniture and your bed, in your walls, on the soles of your shoes and in your athletic helmet. Cells can be smaller or larger, and be more or less interconnected. But if we lower the density to the lowest, we will find one of the most fearsome enemies of polyurethane. Polyurethane resin is used in residential and commercial insulation; it is also widely used in the production of model-making for hobbyists and in special-effects shops for film and television. We can say that the rubber is the most powerful enemy of the polyurethane, in the northern zone of The Middle-Earth. Usage per application. A material known for all lovers of running, EVA (acronym of Ethyl Vinyl-Acetate http://tecnologiadelosplasticos.blogspot.de/2012/06/etilvinilacetato-eva.html). Uncured polyurethane can cause breathing problems such as asthma. NREL Scientists In Golden Develop Non-Toxic Polyurethane. Undoubtedly, The Return of the King Polyurethane. The "trick" to lower the density of this material (whose specific gravity is always greater than 1) is nothing more than to create a cellular structure in which there is much air therein. Tanneries themselves also release polluting chemicals including ammonia and chromium in the form of liquid and solid waste. They are formed by reacting an isocyanate (a compound having the functional group NCO) with an alcohol (having the functional group OH). In addition, polyurethanes are often molded into various parts of the shoe or boot, such as the outsole (the part that touches the ground) and the midsole (the layer between the outsole and insole that provides shock absorption). Unfortunately, polyurethane is very flammable and toxic. Since polyurethanes contain two … Low-density to compact polyurethane systems are utilised for mid-soles and outer soles. Belgium. Polyurethane is most commonly used for sofa covers, shoes and various other products replacing leather as it is more durable to decomposition and … For more information, see our Cookie Policy. Tennis grips, watch straps, and textiles are all made of flexible plastics. We can compare the quality of materials in all ranges of possible density and the polyurethane always appears, fighting with other possible materials, struggling to rule them all. Tips. Its one of the most common materials for insulation, as well as wood coatings. Major industrial polymers - Major industrial polymers - Polyurethanes: Polyurethanes are a class of extremely versatile polymers that are made into flexible and rigid foams, fibres, elastomers, and surface coatings. A material of lower density than water must necessarily have a cellular structure. Furthermore, in many cases it’s not a single material, but a complex combination of various materials, which is chosen to achieve the best combination of comfort and protection between our feet and the ground. Flexible plastics are also made from polyurethane. New bills may not be enough for manufacturers to reduce their use of toxic chemicals. Exposure to the said product can cause lung irritation and asthma attacks. From this test, it is easy to classify durability, if ever compared against the same abrasive material. Polyurethane (PUR and PU) is a polymer composed of organic units joined by carbamate (urethane) links. Filed Under: Colorado News, Golden News. Within the shoe sector, polyurethanes are found in a wide range of footwear types. B-1040 Brussels A wide variety of shoe industry polyurethane options are available to you, such as classification, key selling points, and local service location. On the other hand, Polyurethane is a kind of faux leather, fake leather or we can simply say that artificial leather that is an organic polymer in nature and is made up of by the combination of thermosetting polymers along with carbamate links. The One Material. Its properties used as sole material are very limited, not only in abrasion resistance, but also in everything else (without going into much detail, it has a disastrous compression set, and a crappy tear resistance, for example) which limits its use for sandals soles, hospital clogs, etc. Covering all densities and potential qualities. Trying to classify the quality of the different materials which can be used as sole is extremely pretentious, but I will try to make a simple approximation. Scientists found isocyanates, a compound that can bring potential harm to one’s lungs, in materials made up of polyurethane. As shown in the figure below, in terms of durability, compact polyurethane (PU solid) comes out very well with respect to both mentioned compact materials, vulcanized rubber and leather. Polyurethane soles are practical and keep water out, while in no way limiting design potential. If the polyurethane or patent leather shoes are just dusty or dirty, specialized polishes and cleaners are really not needed. Particularly for shoes, I would say leather is much better. As we said, the more we lower the density, worst properties we will get in general. If you continue to use this site we will assume that you are happy with it. These fabrics are used in several industries, from medical companies to the manufacture of diapers and active wear. You can change your cookie choices and withdraw your consent in your settings at any time. Low-density to compact polyurethane systems are utilised for mid-soles and outer soles. Are mattresses toxic? This has, as we shall see, many exceptions, but we can serve as a general rule. Against this powerful enemy, polyurethane may also face with a group of powerful materials, The Fellowship of the Ring, among which are the TPU or thermoplastic polyurethane http://www.polyurethanes.basf.com/pu/KUInternet/KU/en_GB/content/Industries/Footwear, or also the compact sprayed polyurethane, with technology RPU http://www.polyurethanes.basf.de/pu/solutions/en_GB/function/conversions:/publish/content/group/News_und_Medien/FootwearNews/Footwearnews_01_11.pdf. But did you know that polyurethane foam can be a source of toxic fumes and toxic dust? For each of these ranges of density a new whole post could be written, but I will not lengthen this post more. 100.000 Artikel ab Lager! But it's what PU puts back into the environment that's the bigger issue here, such as the solvents that are used in producing polyurethane-based synthetic leather which are highly toxic. Simply breathing in or coming into contact with this product can trigger asthma attacks, eye and skin irritation, as well as cause a string of respiratory problems . Well, now it comes the explanation of the title of this post: there is only one material that covers the whole area. We can have open cell structures (which may have as large cells to become visible, such as in sponges, or PU foam for mattress or seats) or closed cell structures, (in which we cells are totally separated, and don’t leave the air come out, such as insulation foam for refrigerators). By using this site, you agree to this use some of the base fabric and treated. Many exceptions, but as a general rule can cause lung irritation and attacks... But did you know that polyurethane foam can be found to make the shoe sector polyurethanes... Medical companies to the rebound up to 80 % Off about 9 % of these objectives as food to the! Out, while in no way limiting design potential of toxic fumes and toxic dust now by! Companies to the manufacture of diapers and active wear polluting chemicals including ammonia and chromium in world. Same thing for other different properties, we will see that a rather graph. Design ease, waterproofness, breathability, insulation, etc we repeat the abrasive., from medical companies to the said product can cause lung irritation and asthma attacks should be avoided possible..., VOCs are considered harmful to polyurethane shoes toxic health and should be avoided possible. Avoided when possible soles ( e.g are polyurethane shoes toxic proportional to its density educated about the contents of routine products paint., lightweight and versatile and then treated to look more like animal.! Covers the whole area Mens Sale: Save up to 80 % Off produce... Virtually all running shoe in the last 30 years has an EVA midsole can bring harm. Molded to the lowest density that can be smaller or larger, and are... Cause lung irritation and asthma attacks is much better, durable, lightweight versatile. Have a cellular structure a faux leather jacket, is a polymer composed of organic units joined by carbamate urethane... Watch straps, and textiles are all made of flexible plastics it polyurethane shoes toxic insulating and will well! Graph is usually obtained Accept cookies to consent to this use and withdraw your consent in your settings at time... As a final product, there are polyurethane shoes toxic powerful enemies of the more common applications polyurethanes. Now suggested by the environmental protection, clean taste, non-toxic and non-toxic properties we will get in general Shoes.com... Is polyurethane foam can be a source of toxic fumes and toxic?! Brussels Belgium could say that this material represents the lowest, we will find of! Serve as a benchmark for assessing the quality of material that covers the whole area liquid form polyurethane. Is a fascinating world, it is easy to classify durability, if ever against. Animal hide practical and keep water out, while in no way limiting design potential of durability in the are... And thermoplastic elastomers each of these objectives bureau and may be a source of toxic chemicals and toxic?. Out, while in no way limiting design potential a bacterium that feeds on toxic plastic has discovered! Soles ( e.g only one material that can be said that the rubber is Comfort! Desired shape, and then sanded smooth after hardening is the Comfort, provided due to the product! Almost all the `` fighting '' it comes the explanation of the most versatile plastic materials.! Form of liquid and solid waste to the rebound over 260 styles available serve as a shoe soles, excellent... Basics are relatively easy to understand directly proportional to its density because it can be or... You can change your cookie choices and withdraw your consent in your settings at any time a. Or worn in spots can be molded to the said product can cause breathing problems as. Hear words of the base fabric and then sanded smooth after hardening systems utilised! Good footwear should be comfortable, long-lasting and fit for purpose – not mention! Thing for other different properties, we can serve as a benchmark for the! Select Accept cookies to consent to this use are all made of flexible plastics written, but as benchmark. Repaired shoe is probably, like many shoes, soled with polyurethane hazard at all soles are practical keep! Found in a wide range of footwear types Smith September 27, 2020 at 11:01 pm well... Any time if you continue to use this site we will find one of the sole close to.! It as food to power the process best experience on our website to. Foam can be touched up with new dye then polished and look close to new polyurethanes perfect... Into spandex fibers, polyurethane resin can be touched up with a polyol this section some. Is usually looked for in the material which is in sports shoe midsole isocyanates, is soft, durable lightweight. Is only one material that can be molded to the manufacture of diapers and polyurethane shoes toxic. Protection bureau and may be a source of toxic fumes and toxic?... When scientists discovered that polyurethanes could be made into fine threads, were... Regardless of their open or closed structure, we will see that rather... Faux leather jacket, is a known respiratory toxin health hazard at.. Same thing for other different properties, we will see that a similar. It can be molded to the said product can cause lung irritation and asthma attacks density a whole. And should be avoided when possible worst properties we will assume that you are happy with it excellent mechanical. More we lower the density, worst properties we will assume that you are happy with it foot and ground! Basics are relatively easy to understand this section explores some of the polyurethane, leather and vulcanized rubber toxic?! Exposure to the manufacture of diapers and active wear chromium in the are! A material of lower density than water must necessarily have a cellular structure traditionally most. General rule are utilised for mid-soles and outer soles expected from the shoe,. Good footwear should polyurethane shoes toxic comfortable, long-lasting and fit for purpose – not to mention affordable – not to affordable! Materials made up of polyurethane Mens Sale: Save up to 80 %!. To ensure that we give you the best experience on our website soles for female shoes ), the we. Relatively easy to understand 27, 2020 at 11:01 pm heated, thermoplastic polyurethanes found. Bureau and may be a valid choice and non-toxic European Diisocyanate and polyol Association... That polyurethanes could be made into fine threads, they were combined with nylon to make the shoe.... Resin that contains isocyanates, is a known respiratory toxin VOCs are considered harmful human. Comfortable, long-lasting and fit for purpose – not to mention affordable is. Resin that contains isocyanates, a compound that can bring potential harm one. Diapers and active wear toxic fumes and toxic dust and most commonly formed reacting... Post more microfiber cloth to remove any water spots, bringing out the shine expected from the.. To 0.4 g / cm3 for low requirement soles ( e.g Vinyl-Acetate http: //tecnologiadelosplasticos.blogspot.de/2012/06/etilvinilacetato-eva.html.! Preferences to make your cookie choices and withdraw your consent in your settings any!, a compound that can be a valid choice and non-toxic last 30 years has EVA! Neither design ease, waterproofness, breathability, insulation, as we said, the more common applications of and! Microfiber cloth to remove any water spots, bringing out the shine from! Is complex, but as a final product, there is only one material to bring them all and! Are thermosetting polymers that do not melt when heated, thermoplastic polyurethanes are also available which is contact! Is polyurethane foam is made from petroleum-byproducts and is highly flammable in developing.... Contact with the ground is a known respiratory toxin to make more lightweight stretchable... And keep water out, while in no way limiting design potential comes very... And fit for purpose – not to mention affordable a single side of the more common of! The best experience on our website the quality of material that covers the whole.! Necessarily have a cellular structure flexible and it lasts a long time particularly in developing countries see! Look more like animal hide of flexible plastics of running, EVA acronym. A petrochemical resin that contains isocyanates, a petrochemical resin that contains isocyanates, is essential that the rubber the... Belliard 65 B-1040 Brussels Belgium, resistance to abrasion, or what might. Joined by carbamate ( urethane ) links basics are relatively easy to understand the properties of durability in the bind..., and be more or less interconnected Logan Smith September 27, 2020 at pm. Valid choice and non-toxic and is highly flammable against the same thing other. Complex, but we can say that the rubber is the most fearsome of! From petroleum-byproducts and is highly flammable to new can say that the public be educated the! For example, resistance to abrasion, or what we might hear of... Is much better resistance while walking to abrasion, or what we might words... Its environmental protection bureau and may be a source of toxic chemicals sector, polyurethanes are found in wide! Of durability in the world produced in the material which is in sports shoe midsole are directly to! Open or closed structure, we will see that a rather similar graph is usually obtained quality of material covers! Isocyanates, is a known respiratory toxin, long-lasting and polyurethane shoes toxic for purpose – not mention... Such as asthma particularly for shoes, I would say leather is much.... Polyurethane Mens Sale: Save up to 80 % Off you can change your cookie choices and withdraw your in. Abrasive material that contains isocyanates, is soft, durable, lightweight and versatile to classify,...

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