ELANTAS EN-14
Harmonization Code : 3910.00.00.90 | Silicones in Primary Forms; Others
Main features
- Equal-Volume Meter-Mix Processing
- Defined 20-Minute Working Window
- Flexible Thermal-Shock-Resistant Encapsulation
Product Description
CONATHANE EN-14 Two-Component Polyurethane Potting Compound is an unfilled, 100% solids polyurethane system for potting and encapsulating electrical and electronic assemblies. A 1:1 volumetric mix produces an initial mixed viscosity of 1,200 cP and a 20-minute work life at 25 deg C for controlled casting or meter-mix processing. Cure can proceed for 3 to 4 days at 25 deg C or 3 hours at 60 deg C. The cured material combines Shore A 65 hardness, 110% elongation, 0.2 W/(m K) thermal conductivity, and passes 10 thermal-shock cycles from -65 to 130 deg C.
Key features
- Controlled 1:1 Mixing: Equal-volume mixing supports bench, meter-mix, or vacuum potting processes.
- 20-Minute Working Window: The mixed material provides a defined work life at 25 deg C before gelation.
- Flexible Cured Encapsulation: Shore A 65 hardness and 110% elongation provide a flexible final material profile.
Applications / Suitable for
- Potting electrical assemblies
- Encapsulating electronic assemblies
TDS, SDS & Technical Documents
Technical Specifications
Thermal Properties
Thermal Conductivity
0.2 W/m.K
Thermal conductivity describes the ability of a material to conduct heat. It is required by power packages in order to dissipate heat and maintain stable electrical performance.
Thermal conductivity units are [W/(m K)] in the SI system and [Btu/(hr ft °F)] in the Imperial system.
UL 94 Rating
V2
Flammability rating classification.
It determines how fast a material burns or extinguishes once it is ignited.
HB: slow burning on a horizontal specimen; burning rate less than 76 mm/min for thickness less than 3 mm or burning stops before 100 mm
V-2: burning stops within 30 seconds on a vertical specimen; drips of flaming particles are allowed.
V-1: burning stops within 30 seconds on a vertical specimen; drips of particles allowed as long as they are not inflamed.
V-0: burning stops within 10 seconds on a vertical specimen; drips of particles allowed as long as they are not inflamed.
5VB: burning stops within 60 seconds on a vertical specimen; no drips allowed; plaque specimens may develop a hole.
5VA: burning stops within 60 seconds on a vertical specimen; no drips allowed; plaque specimens may not develop a hole
Mechanical Properties
Elongation
110 %
Elongation is the process of lengthening something.
It is a percentage that measures the initial, unstressed, length compared to the length of the material right before it breaks.
It is commonly referred to as Ultimate Elongation or Tensile Elongation at break.
Electrical Properties
Arc Resistance
>120 s
ASTM-D495 expresses arc resistance as the number of seconds that a material resists forming a surface-conducting path when exposed to a high-voltage, low-current arc occurring intermittently. Results obtained from a nominal 3 mm thickness are meant to represent the material’s reaction in any thickness.
Dielectric Strength
19.7 kV/mm
Dielectric strength is measured in kV per mm and is calculated by the Breakdown voltage divided by the thickness of the tested material.
Those two properties go hand in hand and while Breakdown voltage is always thickness dependent, dielectric strength is a general material property.
As an example, the dielectric strength of Polyimide is 236 kV/mm. If we place 1mm of Polyimide between two electrodes, it will act as an insulator until the voltage between the electrodes reaches 236 kV. At this point it will start acting as a good conductor, causing sparks, potential punctures and current flow.
Surface Resistivity
1 x 10^13 Ohms/sq
Volume Resistivity
3 x 10^13 Ohms⋅cm
Volume resistivity, also called volume resistance, bulk resistance or bulk resistivity is a thickness dependent measurement of the resistivity of a material perpendicular to the plane of the surface.
Additional Information
Technical properties
As-supplied / before-processing properties
As-supplied and processing characteristics used for material and process evaluation. Numerical values are typical unless otherwise identified.
| Property | Value | Unit | Method / condition |
|---|---|---|---|
| Part A / Part B viscosity | 1,500 / 1,000 | cP | At 25 deg C |
| Mix ratio by weight | 100:90 | parts | Part A to Part B |
| Mix ratio by volume | 100:100 | parts | Part A to Part B |
| Initial mixed viscosity | 1,200 | cP | At 25 deg C |
| Gel time | 15 | minutes | At 25 deg C |
| Work life | 20 | minutes | At 25 deg C |
| Cure schedules | 3 to 4 days at 25 deg C or 3 hours at 60 deg C | - | Time after the unit reaches the specified temperature |
Technical properties
After-processing / final-state properties
Final-state characteristics after the stated cure or processing condition. Numerical values are typical unless otherwise identified.
| Property | Value | Unit | Method / condition |
|---|---|---|---|
| Shore hardness | A 65 | - | ASTM D2240 at 25 deg C |
| Tensile strength | 700 | psi | ASTM D229 at 25 deg C |
| Elongation | 110 | % | ASTM D229 at 25 deg C |
| Thermal conductivity | 0.2 | W/(m K) | ASTM C177 |
| Thermal shock | Pass, 10 cycles | - | -65 to 130 deg C |
| Dielectric strength | >500 | V/mil | ASTM D149 at 25 deg C |
| Volume resistivity | 3 x 10^13 | ohm cm | ASTM D257 at 25 deg C |
