urea-formaldehyde


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urea resin adhesive

A dry powder which is mixed with water before being applied; has high early strength and good resistance to heat; not recommended for poorly fitted joints or outdoor use.
McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.
References in periodicals archive ?
Li, and J.Guo, "Preparation and characterization of poly(urea-formaldehyde) microcapsules filled with epoxy resins," Polymer, vol.
Keywords: Hollow glass beads; Poly (urea-formaldehyde); Core-shell microspheres.
The panels contain no added urea-formaldehyde, and are rated CARB-exempt and compliant, the company adds.
Weight the urea-formaldehyde adhesive, particle of Robiniapseudoacacia and wastepaper according to the experiment proposal and then use the glue blender to blending the material in some order.
(31.) Minopouloua, E, Dessiprib, E, Chryssikos, GD, "Use of NIR for Structural Characterization of Urea-Formaldehyde Resins." Int.
The first of all, two kinds of resins (urea-formaldehyde, polyester) were used to manufacture four composite plates having the dimensions 350 x 250 [mm.sup.2] and 4 mm in thickness.
Because the manufacturing process for Nu Green raw particleboard requires no urea-formaldehyde, it produces emissions that do not exceed normal outdoor levels.
Urea-formaldehyde (UF) resins are the main binders for wood composite boards, such as particleboards, fybreboards, or hardwood plywood [I].
All the properties of the low viscosity urea-formaldehyde resins were much lower than those of the conventional types.
ABB LTD has provided its latest System 800xA control system to improve and update Dynea UK Ltd's existing system used for its Urea-Formaldehyde (UF) resins and adhesives process.
The major sources of formaldehyde in most homes are from pressed-wood products made with urea-formaldehyde resins.
Further, conventional homes tend to be built with more solid wood compared to manufactured homes (although some residents of conventional homes have also been exposed to high levels of formaldehyde--during the 1970s a urea-formaldehyde foam was used in insulation; use of this foam was discontinued in the early 1980s, however, and most of the foam's formaldehyde has long since dissipated).