Our values
Cast resin technology
PUR-cast resin technology was introduced to seal and protect power, signal and telephone cable joints.
This new generation of two component cast resin has been developed for the most demanding environments and circumstances.
Cembre cast resin joints meet the requirements of EN50393 and DIN VDE 57291-2 (VDE0291).
Quick setting properties in humid or even cold conditions make it a fast and reliable solution.
No external measuring or mixing is required as this takes place within an Aluminium foil pouch, avoiding spillage and errors during installation.
Unmixed resin components have a 48 month shelf-life even in the most difficult storage conditions.
Shells are made of durable PET resulting in good hydrophobic properties and excellent impact resistance, while good adhesion to PVC and metals assures a watertight seal.
|
Technical characteristic |
Test result |
Requirement of DIN VDE 0291 |
|
Pot life @ |
|
|
|
5°C |
35 min |
product conforms ± 30% |
|
23°C |
20 min |
|
|
35°C |
15 min |
|
|
Reactant open cup flash point |
> 200 °C |
>55 |
|
Tensile strength |
≥ 8.0 Mpa |
≥ 5.0 |
|
Hot aging |
- 5 Shore A |
- 7 |
|
Adhesive |
> 1500 CP. S |
- |
|
Elongation at break |
≥ 100% |
≥ 50% |
|
Gel time for 300 ml @ |
23 °C |
|
|
Pouch >1000 ml |
26 min |
product conforms ± 10% |
|
Pouch <1000 ml |
17 min |
product conforms ± 10% |
|
Max. reaction temp. |
60 °C / 333 K |
product conforms ± 10% |
|
Total vol. variability when hardening |
6 % |
max. 6.5 % |
|
Cast resin component open cup flash point |
> 200 °C |
> 100 |
|
Density |
1.07 g / cm3 |
- |
|
Impact strength |
> 10 kJ / m2 |
> 10 kJ / m2 |
|
Expansion coefficient in temp. range 20-50°C |
5.9 x 10-4 K-1 |
product conforms ± 15% |
|
Thermal conductivity |
0.2W x m-1 x K-1 |
product conforms ± 20% |
|
Flammability |
Class II c |
acc. to DIN VDE 0304, part 3 |
|
Water absorption 42 days@50°C |
360 mg |
max. 400 mg |
|
Electrolytic corrosion |
A1 |
- |
|
Voltage test @ |
|
no breakdown @ test voltage |
|
23°C |
> 20 kV |
> 20 kV |
|
80°C |
> 10 kV |
> 20 kV |
|
Dielectric dissipation factor @ |
|
|
|
23°C and 50 Hz |
0.08 |
max. 0.1 |
|
23°C and 1k Hz |
0.05 |
- |
|
Relative permittivity |
|
|
|
@ 23°C and 50 Hz |
5 |
< 6 |
|
@ 23°C and 1k Hz |
5.1 |
- |
|
Tracking resistance |
KA 3c |
min KA 3c |
|
After 28 days of immersion in 90°C water |
|
|
|
Tensile strength |
8.2N/mm2 |
≥ 65% of initial value |
|
Elongation at break |
60% |
≥ 65% of initial value |
|
Hardness |
47 Shore |
≥ 80% of initial value |
|
|
|
|
|
Hardness |
75 Shore A |
min. 20 Shore D |
