SynChem – Resins & Varnishes Damisol® 3418 API 1-component-resin

Damisol® 3418 API is a one component class H high voltage epoxy resin.

Damisol® 3418 API has the following properties:

  • no VOC (Volatile Organic Compound)
  • low viscosity
  • high thermal and chemical resistance
  • high dielectric properties
  • suitable for API market
Download datasheet


Damisol® 3418 API  can be used on any kind of high voltage equipment. The maximum voltage will depend on process possibilities. On rotating machines, the resin is mainly used up to 15 kV in combination with the Mica tape. It is particularly suitable for harsh environment like oil and gas industry (API-compliance).


  • VOC-free acc. 1999/13/EU
  • Temperature index 200 °C -IEC 60216

Delivery forms

Damisol® 3418 API is available in

  •  20 kg cans
  • 230 kg drums
  • 1100 kg container


Damisol® 3418 API 01 can be stored minimum 12 months at max. 25 °C in sealed containers, protected from light and sun. Higher temperature can be achieved during short period of time.


Pre-heating of the oven to 120 °C is recommended.

Recommended curing time in 2 steps:

  • 4 h at 120 °C
  • 8 h at 160 °C



Refer to the material safety data sheet for complete information.


The low viscosity of this resin allows room temperature (20-25 °C) VPI impregnation. For high main wall insulation thickness, the motor temperature can achieve 60 °C (measured on steel) before impregnation. It is not recommended to perheat the resin.

It is recommended to use Nitrogen or dry air (Dew point -60 °C recommended) during the pressure phase. The storage tank has to be maintained under vacuum 5-10 mbars.

If regularly used, we recommend to maintain the resin temperature at room temperature (23 °C max.). If not used during a few days, in order to prolong its viscosity stability, it will have to be a cooled down to 15 °C (or lower). Nevertheless it is recommende to refresh regularly with new resin (at least 10 % of the storage tank volume per month). The resin has to protected from moisture, heat and contamination. A regular viscosity check is therefore necessary.

Technical data

Property Unit of measure Conditions  Value  Test method 
Viscosity  mPas  at 25 °C 200-600 ISO 2884
Gel time  min  at 135 °C, 12 g 20-26  
Density  g/cm³  at 23 °C 1.15  
Property Unit of measure Conditions  Value  Test method 
Temperature index  °C  -10 % weight loss limit 201 IEC 60216
Glass transition temperature  °C    136 DMA
Property Unit of measure Condition  Value  Test method 
Water absorption  after 7 d at 23 °C < 0.37 ISO 62
Liquid phase
Property Unit of measure Conditions  Value  Test method 
Flashpoint  °C    ≥110 ISO 3679