UF
Urea Formaldehyde
Glass Transition (Tg)
— (crosslinked)
Melting Point (Tm)
— (decomposes)
Density
1.50 g/cm³
CAS Number
9011-05-6
Recycling Code
None
Category
Thermoset
Repeat Unit
–[NH–CO–NH–CH₂]ₙ–
The repeating unit is the smallest structural fragment whose repetition builds the whole chain. Subscripts show the relative share of each unit in copolymers.
Key Properties
Cheap, hard, light-coloured and self-extinguishing; poor moisture resistance and can release formaldehyde over time.
Applications
Particleboard and MDF adhesive, electrical fittings, foam insulation.