Natural Wood Veneer Aluminum Profile PVC Wood Film Aluminum Square
Tube Exterior Panle Floor
Fields of application:
For highly durable in bonding of:
- Wood based materials for in terior area
General edge banding in the furniture industry
PVC and wood based profiles with:
- PVC foils
- CPL, thick decor paper
- Veneer
Yellow chromated aluminium profiles
For interior finishing of motor vehicles:
- lamination of cloth/carpet or PVC foils to substrates made from
wood based materials or plastic
Advantages:
- Very high green strength with high tack
- Heat resistance more then 150 °C
- Cold resistance up to -40 °C
Application techniques:
PUR- hotmelts react with ambient air humidity. KLEIBERIT PUR-HM 702
is available in tightly closed metal containers suitable for platen
melters. The package should only be open immediately before use.
The melting equipment must constructed in such a way that the
adhesive is protected from ambient air humidity. It is important
that the temperature can be controlled accurately.
Yellow chromated aluminium profiles must be preheated to approx. 40
°C immediately before bonding. The chrome coating must not be older
then 4 weeks.
The application temperature for profile wrapping is from 140 °C to
160 °C. For edge banding the application temperature is in the
range from 120 °C.
(veneer and resin paper can have higher application temperatures)
The required coat weight depends on the material: E.g. Profile
wrapping:
-PVC-Foil 40 - 60 g/m2
(Incl. CPL-Material and thick papers) 50 - 70 g/m2
E.g. Edge banding onto:
- Particle board and MDF from 140 g/m2
Properties of the adhesive Basis: Polyurethane
Specific gravity: approx. 1.04 g/cm3
Viscosity (on the day of production) -Brookfield HBTD 10 rpm
(mPa.s):
| Product Nr. | 120 °C | 140 °C | 160 °C |
| 702.5 | 60.000士 | 35.000 士 | 20.000 士 |
| 15.000 | 10.000 | 5.000 |
| 702.7 | 100.000 士 | 60.000 士 | 35.000 士 |
| 25.000 | 15.000 | 10.000 |
| 702.9 | 200.000 士 | 100.000 士 | 60.000 士 |
| 40.000 | 25.000 | 15.000 |
The speed, depending on the materials and the profile geometries
used, is between 10-60 m/min and can be even higher. The final bond
strength is reached after approx. 7 days.
Chemical cross linking of PUR hotmelts requires moisture. Therefore
sufficient air humidity has to be present during processing.
Application equipment:
- Cartridge guns for manual use
- Tank melter with nitrogen blanket
- Drum melting systems for 20 and 200 litre drums
