Applicable Base Polymer Properties
One of the most common wood adhesives is based on the reaction of formaldehyde with phenol. The properties vary depending on the coreactant with the formaldehyde. Phenol formaldehyde polymers are widely used in both wood laminations (plywood) and composites (flakeboard) because of their outstanding durability, which derives from their good adhesion to wood, the high strength of the polymer, and the excellent stability of the adhesive. In general, phenol formaldehyde adhesive can meet the bonding needs for most wood applications if cost and heat curing times are not an issue.