Elantas (Altana) Conathane EN-21

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Description for Elantas (Altana) Conathane EN-21

CONATHANE® EN-20 Series are two-component, liquid, low viscosity, low toxicity, room temperature curing polyurethane resin systems. These systems were formulated specifically for the potting, casting, embedding, and encapsulation of electronic circuits, components, and power devices.

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Brand	Cytec
Application Type	Casting, Potting , Encapsulation
1 Part or 2 Part	2-Part
Material Form	Liquid
Industry	Components, Printed circuit assemblies, Transformers, Coils, Electrical, Electronic circuits, Inductors, Micro-circuits, Power devices, Solid state ignition systems, Voltage regulators
Manufacturer	Elantas (Altana)
Chemistry	Non-MBOCA, Low Toxicity, Polyurethane
Cure Method	Part A/Part B
Cure Temperature (°C)	25, 80
Cure Time (min)	10,080, 240
Viscosity (cPs)	Low, 2,000, 320
High Temperature Resistance (°C)	130
Low Temperature Resistance (°C)	-65
Other Resistance	Reversion Resistance
Volume Resistivity (O)	7.2e14 (ohms/cm), 1.8e11 (ohms/cm)
Key Specifications	UL (Underwriters Laboratory), ULC (Underwriters Laboratories of Canada), NFPA (National Fire Protection Association): UL 94 HB certified

Best Practices for Elantas (Altana) Conathane EN-21

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Technical Data for Elantas (Altana) Conathane EN-21

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Overview

Application Type
- Casting / Moldmaking - Casting
- Pottant / Encapsulant - Potting , Encapsulation
1 Part or 2 Part
- 2-Part
Material Form
- Liquid
Industry
- Electronics - Components, Electrical, Electronic circuits, Inductors, Micro-circuits, Power devices, Solid state ignition systems, Voltage regulators
- Printed Circuit Board (PCB) - Printed circuit assemblies
- Transformers
- Coils
- Industrial - Ballasts, Mercury switches, Rectifiers, Reed
Chemistry
- Other - Non-MBOCA, Low Toxicity
- Polyurethane
Application Method
- Dispenser - Hand Mixed, Machine Dispensed
Cure Method
- 2-Part Cure - Part A/Part B
Key Specifications
- UL (Underwriters Laboratory), ULC (Underwriters Laboratories of Canada), NFPA (National Fire Protection Association) : UL 94 HB - UL 94 HB certified
Brand
- Cytec

Specifications

Cure Specs

Cure Temperature (°C)	25, 80
Cure Time (min)	10,080, 240
Viscosity (cPs)	Low, 2,000, 320	Test Method
Fixture or Handling Strength Time (min)	Easy
Set Time (min)	90, 20	Test Method
Linear Shrinkage (%)	0.014 (in./in.), Low
Work / Pot Time (min)	40, 8	Test Method
Mix Ratio	116:100 (by weight)

Bond Strength

Tear Strength (piw)	119 (psi)
Tensile Strength (psi)	2,000

Material Resistance

High Temperature Resistance (°C)	130	Test Method
Low Temperature Resistance (°C)	-65	Test Method
Moisture/Humidity Resistance	Excellent
Other Resistance	Reversion Resistance

Conductivity

Dissipation Factor	0.01700, 0.03000	Test Method
Insulation Resistance (O)	>2.5e13 (ohms), 1.4e9 (ohms) , Insulation resistance	Test Method
Dielectric Strength (V/mil)	650 (Vpm), Excellent	Test Method
Dielectric Constant	3.40, 6.10	Test Method
Thermal Conductivity (W/m°K)	7.1e-4 (cal/sec/cm2/°C/cm)
Surface Resistivity (O)	>1.0e15 (ohms), 6.9e12 (ohms)	Test Method
Volume Resistivity (O)	7.2e14 (ohms/cm), 1.8e11 (ohms/cm)	Test Method

Hardness

Shore A Hardness	80
Elongation (%)	155

Other Properties

Specific Gravity	1.070	Test Method
Coefficient of Thermal Expansion (CTE)	2.10e-4 (in./ in/°C)	Test Method

Business Information

Shelf Life Details	CONATHANE EN-21 Part A and Part B components are storage stable in their original, unopened containers for 18 months from date of manufacture when stored at 65°F-85°F.
Shelf Life Temperature (°F)	65 to 85
Shelf Life Type	From date of manufacture
Shelf Life (mon)	18

Best Practices for Elantas (Altana) Conathane EN-21

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1. Mixing
  
  Mix the two components together thoroughly at room temperature in metal, plastic, or glass containers, using a metal spatula. DO NOT use paper containers or wooden sticks. Any moisture introduced into the system will cause bubbling and/or foaming during curing.
  
  Pour into dry preheated units. Best results are generally obtained when the unit is at least 10°C warmer than the mixed material. Pour down the side of the unit to be potted to avoid air entrapment.
  
  If the potted device is to be heat cured, it is best to allow the device to sit at room temperature for 1-2 hours to permit air bubbles, entrapped during pouring, to dissipate.
  
  When containers are opened and the contents only partially used, be certain to flush them with dry nitrogen or CONAP® Dri-Purge (Request Technical Bulletin AC-105) to prevent moisture contamination and subsequent waste of material.
2. Deairing/Degassing
  
  If void-free castings are required for the particular application, degas the mixed system at 1-5 mm of mercury vacuum. Allow froth to rise and collapse
  
  continue vacuum for 2-5 minutes. Containers should generally have twice the volume of mixed material to allow for frothing.
Comparable Materials for Elantas (Altana) Conathane EN-21

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Spec Engine^® Results
- Conathane EN-20(Elantas (Altana))
  An unfilled, two-component, room temperature curing, 100%-solids polyurethane system. Potting and encapsulation of electrical and electronic assemblies, Low viscosity, Thermal shock resistant, excellent moisture resistance.
- Conathane EN-13(Elantas (Altana))
  An unfilled, two-part, room temperature curing, tough, highly flexible polyurethane resin system. Excellent water resistance, good high and low temperature properties, and exceptional electrical properties.
- EL110H Black(Resinlab)
  A two-part flexible polyurethane that offers excellent water resistance and electrical insulation characteristics and it has low viscosity, excellent resistance to seawater and aqueous based cleaning chemicals, excellent toughness and abrasion resistance.
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