Processing and working instructions HPL and HPL elements PR ...

PRODUCT INFORMATION
7.6.2 guideline values for the stress resistance of adhesives (empirical)
Adhesive type
Dispersion adhesives:
Temperature resistance
(approximate values) 1)
PVAc adhesives -20 to +70 °C D 1/D 2
2-component PVAc adhesives -20 to +100 °C D 3
Condensation resin adhesives:
Urea resin with high
elongation agent component
-20 to +120 °C D 2
Melamine/urea resin -20 to +120 °C D 3/D 4
Phenol, resorcin resin -20 to +140 °C D 3/D 4
Contact adhesives:
Contact adhesives
without hardener
Contact adhesives
with hardeners
Contact adhesives
with resin hardeners
Reaction adhesives:
Epoxy, unsaturated polyester
and polyurethane adhesives
-10 to +50 °C D 1
-10 to +100 °C D 2
Stress resistance in accordance
with DIN EN 204 2)
Consul manufacturer Consul manufacturer
-20 to +100 °C D 3/D 4
Hot-melt adhesives -10 to +60 °C D 1
Special hot-melt adhesives -10 to +90 °C D 1
The specified guideline values refer only to the bonded joint.
1) The specified plus values refer to short-term stress (up to 30 min.) up to these maximum temperatures.
2) The core material and edge protection must comply with the relevant stresses..
The figures on temperature resistance apply only for short-term stress to the bonded joint.
The long-term resistance of the composite element depends on several factors, such as the type and class
of the DUROPAL HPL, air humidity, temperature effects and the core material. Since the adhesives within
the groups listed how different properties and are under continual further development, the manufacturer
should always be consulted for special applications.
099 PI Processing and working instructions Page 18 of 34