UF resin is by far the dominant adhesive for MDF and PB. It provides a strong adhesion in a permanently dry environment, cures fast, and is relatively cheap.. It has an affinity for wood surfaces
Properties
Appearance Milky Liquid free from foreign matter
PH 7- 7.5
Solid content 120oc ( 60 ±2 )%
Viscosity 20 C° ( 2-10 ) p
Specific gravity 20 C° (1.25±0.02)
Pot life 20 C° 6 month
Harding agent:
Ammonium chloride (ppw. 0.7% of resin) or acids as harding agent.
Uses:
In industry of particle board, plywood, paper and carton.
*Temperature of the press ( 90 � 110) c�
*Pressure and time press according to applied
* N.B: can be used as it is without dil. But add Harding agent or by dilution with water and filler as (wheat flour) and harding agent.