White (natural colour) hot melt adhesive Hranitherm 600.21 based on EVA is mainly characterised by longer open time and good thermal resistance of bonded joints. Thanks to its lower viscosity it spreads better on the edge, suitable for smaller-scale edge-banding machines. Available also in beige (natural) colour (Hranitherm 600.20).
|Brookfield viscosity (200°C at 27/2 rpm)||18,000-28,000||mPas|
|Melting rate at 190°C||145-175||g/10min|
|Softening point (ring and ball method)||85-90||°C|
|Density at 20°C||1.35||g/cm3|
|Suitable working conditions:|
Temperature in vessel
Temperature on roller
Material moisture content
Ideal feed rate
Pressure on snub rollers
PACKAGING AND STORAGE:
Keep in original container. If stored in closed containers in a cold and dry place at temperatures not exceeding 20°C, the shelf life is 24 months.
When using the hot melt adhesive, observe the application temperature and check it on a regular basis by measuring on the roller or nozzle. The temperature shown on the edge-banding machine control panel may differ from the actual temperature. Lower temperature of the adhesive may affect its open time and consequently impair the bonded joint quality. At a higher temperature, the adhesive may degrade, which affects its colour, viscosity and adhesion. When banding edges from various materials, regular testing of banding strength and quality is advisable. Recommended temperature of the environment and materials is
Clean any residual adhesive on furniture elements using Hraniclean 01 (08). In glue pots use Jowat 236.50.