Product Description
Elantas CONATHANE® EN-21 is a two-component unfilled, low viscosity polyurethane system.
Features and benefits of CONATHANE® EN-21
- Excellent electrical properties
- Low viscosity
- Low exotherm and low shrinkage
- Thermal shock resistant
- Room temperature or low temperature cure
- Low stress build-up on embedded compo- nents
- Excellent moisture resistance
Application of CONATHANE® EN-21
- Formulated specifically for the potting, casting, embedding, and encapsulation of electronic circuits, components and power devices.
- Ideal for use in potting transformers, coils, reed and mercury switches, inductors, solid state ignition systems, voltage regulators, ballasts, micro-circuits, rectifiers and printed circuit assemblies.
Application/Curing Schedule
Combine EN-21 Part A and EN-21 Part B in the ratio specified. The two components should be mixed thoroughly in metal or glass containers using metal or glass stirrers. Degassing of the mixed system should be accomplished at room temperature at >27 in. Hg vacuum. Containers should be large enough to allow for frothing during the degassing process.
Cure for 7 days at 25°C / 77°F – or – 4 hours at 80°C / 176°F. The cure schedules above are based on time after the unit reaches the specified temperature and are recommendations only. The user is responsible for determining the optimum cure conditions for his application.
Primers are available if improved adhesion is required. For metals, CONAP® AD-1146-C is recommended. For plastics, CONAP® PR 1167 is recommended.
Transportation/Storage
Store at 25°C / 77°F in a dry controlled environment out of direct sunlight. This material should be suitable for use 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 above may lead to deterioration in product performance.
This product is sensitive to moisture and atmospheric humidity. Containers, once opened, should be used immediately or blanketed with dry air or nitrogen (CONAP® Dri-Purge) before resealing.
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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.
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Moreover, Prostech ensures the safe and accurate global delivery of all materials, including “dangerous goods”, in compliance with legal regulations. For personalized technical support or to receive a quotation, please contact us today.
Typical Properties of Material as Supplied
|
Property |
Conditions |
Value |
|
|
|
|
CONATHANE® EN-21 Part A Urethane Prepolymer |
CONATHANE® EN-21 Part B Curative |
|
Viscosity |
25°C / 77°F |
6,000 cP |
800 cP |
|
Specific Gravity |
25°C / 77°F |
1.14 |
0.96 |
|
Appearance |
|
Clear Amber |
Clear Amber |
|
Mix Ratio |
Parts by weight |
100 |
116 |
|
Flashpoint |
ASTM D93 |
> 94°C > 201°F |
> 94°C > 201°F |
Typical Properties of Mixed Materials
|
Property |
Conditions |
Value |
Units |
|
Viscosity (initial) |
25°C / 77°F |
2000 |
cP |
|
Pot Life |
25°C / 77°F 60°C / 140°F |
40 8 |
minutes minutes |
|
Gel Time |
25°C / 77°F 60°C / 140°F |
90 20 |
minutes minutes |
