Water Resistant Urea Melamine Formaldehyde Adhesive Powder

Typical values Characteristics
Powder
White powder Appearance
0.4 ± 0.03 g/cm3 Bulk density
2.5 wt% Moisture content, max
50% Solution (1:1 liquid glue)
150 – 250 mPa.s Viscosity at 25 °C
0.25 – 0.35 wt% Free formaldehyde content
9 – 9.8 pH at 25 °C
1.19 – 1.21 Specific gravity at 20 °C
60 – 90 s Gel time at 100 °C with hardener
4 hours Shelf life at 25 °C

Urea Melamine Formaldehyde (UMF) combines the properties from urea formaldehyde and melamine formaldehyde polymers with optimum performance. High resistance to water minimizes water absorption in compact boards. This resin has high resistance to water penetration and moisture and therefore is suitable for the production of panels for exterior use. The powder can be easily mixed with water and used as liquid UMF adhesive. It has higher bonding strength compared to urea formaldehyde adhesives.

Applications

  • Production of plywood, medium density fiberboard (MDF) and furniture.

Storage Life

6 months at 25 °C

Packaging

Laminated 25 kg PP bags