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urea-formaldehyde resin |
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urea-formaldehyde resin [yu̇′rē·ə fȯr′mal·də‚hīd ′rez·ən] (organic chemistry) A synthetic thermoset resin derived by the reaction of urea (carbamide) with formaldehyde or its polymers. Also known as urea resin. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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Urea-formaldehyde resins are used as adhesives in materials such as hardwood plywood, particleboard, and medium-density fiberboard (MDF). There is less pressure to convert exterior-grade wood products because they use phenol-formaldehyde resins, which offgas formaldehyde at a much lower rate than the urea-formaldehyde resins. Regular plywood bonded with urea-formaldehyde resins could never do that. |
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