Urea-formaldehyde (UF)
resins are typically used in the manufacture of products where dimensional
uniformity and surface smoothness are of primary concern; for example,
particleboard. Products manufactured with UF resins are designed for interior
applications. They can be formulated to cure anywhere from room temperature to
150°C ; press times and temperatures can be moderated accordingly.
Urea-formaldehyde resins (often referred to as urea resins) are more economical
than PF resins and are the most widely used adhesive for composite wood
products. The inherently light color of UF resins make them quite suitable for
the manufacture of decorative products.