Urea Formaldehyde Adhesive Powder (Grade E1)
|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 content|
|9 – 10.5||pH at 25 °C|
|1.2 – 1.3||Specific gravity at 20 °C|
|180 s||Gel time at 100 °C with hardener, max|
|4 days||Shelf life at 25 °C|
Powdered urea formaldehyde adhesive is a thermosetting white polymer, which is used as liquid adhesive after mixing with water. The adhesive has high bonding strength toward most cellulosic materials and due to its low formaldehyde emission; it is compatible with E1 European standard. Powdered E1 urea formaldehyde adhesive is preferred to liquid adhesive where production runs are infrequent and longer storage life is needed.
- Manufacturing of low formaldehyde emitting wood particle board, plywood, furniture and other wood products.
6 months at 25 °C
Laminated 25 kg PP bags