CONATHANE EN-11
Harmonization Code : 3506.91.90.99 | Prepared glues and other prepared adhesives, not elsewhere specified or included; products suitable for use as glues or adhesives, put up for retail sale as glues or adhesives, not exceeding a net weight of 1 kg ; Adhesives based on polymers of headings 3901 to 3913 or on rubber; Other ; Other
Main features
- Flexible Two-Component Polyurethane System for Potting
- 5,750 cP Mixed Viscosity
- 350% Cured Elongation
Product Description
CONATHANE® EN-11 Polyurethane Encapsulant is a two-component, highly flexible polyurethane molding and encapsulation system for electrical and electronic assemblies exposed to severe environmental conditions. EN-4 Part A is mixed with EN-11 Part B at 100:55 by weight to produce a low-viscosity, translucent amber elastomer. The system is documented for cable and connector potting, electronic modules, wire-wound devices, strain-sensitive components, and thick-film protection of printed circuitry. Typical cured properties include Shore A 60 hardness, 350% elongation, high dielectric strength, hydrolytic stability, and thermal-shock resistance.
Key features
- Flexible polyurethane system: The cured material has typical Shore A 60 hardness and 350% ultimate elongation.
- Low mixed viscosity: Typical initial mixed viscosity is 5,750 cP at 25°C.
- Electrical and environmental properties: Typical data include 610 V/mil dielectric strength, hydrolytic stability, and thermal-shock resistance.
Applications / Suitable for
- Cable and connector potting and molding
- Electronic module and wire-wound device encapsulation
- Strain-sensitive component potting and printed-circuit protection
TDS, SDS & Technical Documents
Technical Specifications
No specifications available.
Additional Information
As-supplied / before-processing properties
Typical as-supplied or mixed-state values unless otherwise stated. These values are not sales specifications.
| Property | Value | Unit | Method / condition |
|---|---|---|---|
| Part A viscosity | 8,500 | cP | EN-4 Part A at 25°C |
| Part B viscosity | 4,000 | cP | EN-11 Part B at 25°C |
| Part A specific gravity | 0.97 | N/A | At 25°C |
| Part B specific gravity | 0.91 | N/A | At 25°C |
| Mix ratio | 100:55 | parts by weight | EN-4 Part A : EN-11 Part B |
| Initial mixed viscosity | 5,750 | cP | At 25°C |
| Cure options | 24 h at 60°C; 16 h at 80°C | N/A | Recommended schedules |
| Shelf life | 15 | months | Original unopened containers |
After-processing / final-state properties
Typical final-state values under the stated system and test conditions. These values are not sales specifications.
| Property | Value | Unit | Method / condition |
|---|---|---|---|
| Hardness | 60 | Shore A | ASTM D2240 |
| Tensile strength | 750 | psi | ASTM D412 |
| Ultimate elongation | 350 | % | ASTM D412 |
| Tear strength | 100 | pli | ASTM D624, Graves |
| Linear shrinkage | 1.15 | % | Typical cured value |
| Dielectric strength | 610 | V/mil | ASTM D149, 1/16 in specimen |
| Volume resistivity | >4.3 × 10¹⁵ | ohm·cm | ASTM D257 at 25°C |
| Operating temperature range | -65 to 130 | °C | Documented recommended range |
