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.
References in periodicals archive ?
The fire-retardant properties of the melamine-modified urea-formaldehyde resins mixed with ammonium polyphosphate.
Available from Flakeboard, VESTA particleboard is produced using a no added urea-formaldehyde resin process and 100% recycled and/or recovered (pre-consumer) wood material.
The over long time will cause the MOR value shrink because the using urea-formaldehyde adhesive become solid during the process.
The urea-formaldehyde resin Urelit R was reinforced with oak wood flour, beech wood flour or carpinus wood flour.
Because the manufacturing process for Nu Green raw particleboard requires no urea-formaldehyde, it produces emissions that do not exceed normal outdoor levels.
Examination of selected synthesis parameters for typical wood adhesive-type urea-formaldehyde resins by [sup.
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).
It was the first company to patent urea-formaldehyde resins in 1924 and produced the world's first white commercial moulding powder in 1926.
Marshfield DoorSystems [TM] has expanded its family of Environmental Class [TM] wood door products to include a fire-rated environmental mineral core door and Forest Stewardship Council-certified stave core doors, which do not contain any added urea-formaldehyde.