Product Description
Elantas CONATHANE® EN-20 is an unfilled, two- component, room temperature curing, 100%- solids polyurethane system.
Features and benefits of CONATHANE® EN-20
- Excellent electrical properties
- Low viscosity
- Low exotherm and low shrinkage
- Thermal shock resistant
- Room temperature or low temperature cure
- Low stress buildup on embedded components
- Excellent moisture resistance
- Convenient 1:2 volume mix ratio
Application of CONATHANE® EN-20
- Potting and encapsulation of electrical and electronic assemblies
- Ideal for use in potting transformers, coils, reed and mercury switches, inductors, solid-state ignition systems, voltage regulators, ballasts, microcircuits, rectifiers and printed circuit assemblies
Application/Curing schedule
Mix Resin and Hardener in the ratio specified above until homogeneous. If hand mixing, degas at 1-5 mm Hg vacuum before use. The two components should be mixed thoroughly in metal or glass containers using metal or glass stirrers. Do not use paper or wooden containers or implements in mixing as they may introduce moisture into the system.
Cure 4 hour at 80°C and 7 days at 25°C / 77°F – OR – 16 hours at 80°C / 176°F and 4 days at 25°C / 77°F
The cure schedules above are based on time after the unit reaches the specified temperature and are recommendation.
Transportation/Storage
Sore at 25°C / 77°F in a dry, controlled environment out of direct sunlight. This material should be suitable for use when stored under these conditions in the original sealed containers for twelve (12) months from the date of shipment.
Failure to store the product as recommended may lead to deterioration in product performance.
This product is sensitive to moisture and atmospheric humidity. Once opened, containers should be used immediately or blanketed with dry air or nitrogen (CONAP® Dri-Purge) before resealing.
Mix individual components thoroughly before use.
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About Prostech
Prostech offers specialty materials (adhesives, tapes, thermal interface materials, insulating materials, sealants, PCB protection materials, …) along with manufacturing solutions. We proudly serve a wide range of industries and are an authorized distributor for leading global manufacturers of industrial materials and equipment. Our product range is designed to deliver customized solutions that address each customer’s unique needs.
With years of experience and a successful project history, we are confident in our ability to provide comprehensive material solutions. These solutions effectively tackle the challenges manufacturers face. To explore our full product catalog, simply click here. Our dedicated team is ready to assist with:
- Provide quotation, sample, TDS/MSDS, and technical consultation
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Typical Properties of Material as Supplied
Property | Conditions | Value | Units | |
|
| CONATHANE® EN-20 Part A Urethane Prepolymer | CONATHANE® EN-20 Part B Curative |
|
Viscosity | 25°C / 77°F | 16,000 – 28,000 | 460 – 600 | cP |
Appearance |
| Clear Amber | Clear Amber |
|
Weight per Gallon | 25°C / 77°F | 9.5 | 8.0 | pounds |
Flash Point | ASTM D93 | > 94 | > 94 | °C |
> 201 | > 201 | °F | ||
Mix Ratio | Parts by weight | 100 | 170 |
|
Typical Properties of Mixed Materials
Property | Conditions | Value | Units |
Viscosity (initial) | 25°C / 77°F | 1200 | cP |
Pot Life | 250 g – 25°C / 77°F 250 g – 60°C / 140°F | 120 15 | minutes minutes |
Typical Mechanical Properties
Property | Test Method | Conditions | Value | Units |
Shore Hardness | ASTM D2240 | 25°C / 77°C | A 60 |
|
Specific Gravity |
| 25°C / 77°C | 1.03 |
|
Tensile Strength | ASTM D412 | 25°C / 77°C | 400 | psi |
Elongation | ASTM D412 | 25°C / 77°C | 150 | % |
Coefficient of Thermal Expansion | ASTM D696 |
| 240 | ppm / °C |
Compression Set | ASTM D395 Method B | 25°C / 77°C | 6 | % |
Tear Strength | ASTM D624 | 25°C / 77°C | 28 | pli |
Thermal Conductivity | ASTM C177 |
| 0.2 | W / m∙K |
Thermal Shock | MIL-I-16923E | -70°C to 130°C | pass 10 | cycles |
Water Absorption | ASTM D570 | 25°C / 77°F – 24 hours 25°C / 77°F – 7 days | 0.2 0.3 | % % |
