SynChem – Resins & Varnishes Damival® 13682AN90/13481 2K- Polyurethane resin

Damival®13682AN90/13481 is a very flexible black 2-component resin on base of polyurethane.

Damival® 13682AN90/13481 is an alternative for silicone- and epoxy resins for potting and casting as well as coating for electronic assemblies.
Damival® 13682AN90/13481 can be cured at room temperature and has the following properties:

  • Usable and flexible resin, even at low temperatures of -60 °C
  • For railway applications: EN45545-2HL 3
  • MDI-free hardener and free of CRM substances
  • Flame retardent UL94-V0
  • Thermal resistance up to 150 °C
  • High thermal conductivity

The properties depend on the curing stage of object.

Download datasheet

Standards

  • RoHS compliant
  • ELV 2000/53/CE regulations
  • REACH compliant acc. obligation (01-01-2014)
  • Halogen free acc. IEC 61249-2-21 and IPC 4101B
  • Thermal class B (130 °C)
  • UL 94-V0

Delivery forms

The resin is available in 25 kg cans and 250 kg drums (one way).
The hardener is available in 5 and 20 kg cans (one way).

Storage

The resin should be stored in cool and dry places. Storage life of resin and hardener at max. 25 °C ambient temperature is 12 months.

Hardening

Curing at room temperature or accelarated at higher temperatures.

Processing

The resin must be stirred prior to use, as it contains fillers which may settle during storage. Avoid air introduction during stirring.

Polyurethane resin and hardner are sensitive to moisture during the processing steps (storage, mixing, casting). The parts to be casted should be dry and clean.  A preheating of the parts and/or of the resin may improve the encapsulation. A vacuum processing enhances the dielectric and mechanical properties.

Mixing can be done by machine or manually. Easy check of the quality mix thanks to the colored hardener. The gel time and the curing time depend on the mixed volume, the temperature and the thickness of the layer. Final properties are depending on the curing level.

Mixing ratio:
100:9 weight-%
100:13 vol.-%

Technical data

Mechanical
Property Unit of measure Conditions  Values  Test method 
Shore-A-hardness    after 2 months 46 ISO 868
Elongation at break    53 ISO 527
Water absorption  24h, 25 °C 0.3 ISO 62
Thermal
Property Unit of measure Conditions  Values  Test method 
Glass transition temperature  °C    -60 TMA
Linear expansion coefficient  µm/m/°C    146 TMA
Heat conductivity  W/mK    0.95 DIN EN-821-2
Resistance against    thermal shock -60/+150 °C  
Liquid phase
Property Unit of measure Conditions  Values component A  Values component B  Values Mixture  Test method 
Mixing ratio  weight-%  weight-%     100:9  
Viscosity  mPas  25 °C 7,000-11,000 500-350 5,000 Brookfield ISO 2555
Viscosity  mPas  60 °C     1,000 Brookfield ISO 2555
Mixture density  g/cm³  23 °C 1.63 1.10 1.58  
Gel time at 25 °C  min  300 g     30-50 TECAM
Topfzeit  min  RT ascending to 60 °C     10.5  
Electrical
Property Unit of measure Values  Test method 
Dielectric strength  kV/mm  20 IEC 60243
Specific volume resistance at 23 °C  Ω*cm  8 x 10^10 IEC 60093
Dielectric constant ε at 50 Hz, 23 °C    6 IEC 60250