Formaldehyde has been a subject of concern in the
formaldehyde resin-bonded wood-base panel industry for
a number of years. Virtually all wood panel products,
such as plywood, wood particleboard and MDF are
manufactured using either urea formaldehyde or phenol
formaldehyde adhesive. Formaldehyde is gaseous at room
temperature, but it can polymerize forming para-formaldehyde,
and it readily dissolves in water forming
methyleneglycol (Meyer et al. 1986a, b, c)