Urea Melamine Formaldehyde Adhesive Powder (Grade E1)
| Typical values | Characteristics |
| Powder | |
| White powder | Appearance |
| 0.5 ± 0.05 gr/cm3 | Bulk density |
| 2 wt% | Moisture content, max |
| 50% Solution (1:1 liquid glue) | |
| 200 – 400 mPa.s | Viscosity at 25 °C |
| 0.3 – 0.5 wt% | Free formaldehyde |
| 9 – 10.5 | pH at 25 °C |
| 1.2 – 1.3 | Specific gravity at 20 °C |
| 60 – 90 s | Gel time at 100 °C with hardener |
| 4 days | 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. Also, because of low formaldehyde emission it is compatible with E1 European standard. Powdered urea melamine formaldehyde adhesive is preferred to liquid adhesive where production runs are infrequent and longer storage life is needed.
Applications
- Manufacturing of wood particle board, plywood, furniture and other moisture resistant wood products.
- For preparation and bonding of both low and high pressure paper laminates and overlays.
Storage life
6 months at 25 °C
Packaging
25 kg laminated PP bags