Elantas (Altana) Conathane EN-2551

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Description for Elantas (Altana) Conathane EN-2551

A filled two-component urethane system that has excellent electrical properties, low shrinkage, low stress buildup, and can be hand-mixed or machine dispensed.

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Brand	Conathane, Cytec
Application Type	Pot, Encapsulate
1 Part or 2 Part	2-Part
Material Form	Paste
Substrate	Aluminum
Industry	Electrical, Electronic
Manufacturer	Elantas (Altana)
Chemistry	Urethane
Cure Method	Part A/Part B
Cure Temperature (°C)	25, 80
Cure Time (min)	10,080, 960
Viscosity (cPs)	4,500
Color	Black, Tan
Arc Resistance (sec)	Arc resistance
Volume Resistivity (O)	6.8e13 (ohms/cm)
Key Specifications	UL Recognized, UL 94V-O, Mil-Spec (United States Military Standard): MIL-STD-810B

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Technical Data for Elantas (Altana) Conathane EN-2551

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Overview

Application Type
- Pottant / Encapsulant - Pot, Encapsulate
1 Part or 2 Part
- 2-Part
Material Form
- Paste
Substrate
- Aluminum - Aluminum
Industry
- Electronics - Electrical, Electronic
Chemistry
- Polyurethane - Urethane
Application Method
- Roll
Cure Method
- 2-Part Cure - Part A/Part B
Color
- Black
- Brown - Tan
Key Specifications
- UL (Underwriters Laboratory), ULC (Underwriters Laboratories of Canada), NFPA (National Fire Protection Association) - UL Recognized, UL 94V-O
- Mil-Spec (United States Military Standard) : STD-810B - MIL-STD-810B
Brand
- Conathane
- Cytec

Specifications

Cure Specs

Cure Temperature (°C)	25, 80
Cure Time (min)	10,080, 960
Viscosity (cPs)	4,500	Test Method
Set Time (min)	4.00 to 7	Test Method
Linear Shrinkage (%)	0.0075 (in./in.), Low
Mix Ratio	17:100 (by weight)

Bond Strength

Shear Strength (psi)	300	Test Method
Tear Strength (piw)	154 (pli)
Tensile Strength (psi)	1,025

Material Resistance

Arc Resistance (sec)	Arc resistance

Conductivity

Dissipation Factor	0.05300, 0.17800	Test Method
Filler	Filled
Insulation Resistance (O)	8.6e12 (ohms), Insulation resistance	Test Method
Dielectric Strength (V/mil)	585 (vpm)
Dielectric Constant	3.99	Test Method
Thermal Conductivity (W/m°K)	1.55e-3 (cal/sec/cm2/ºC/cm)
Surface Resistivity (O)	2.8e17 (ohms)	Test Method
Volume Resistivity (O)	6.8e13 (ohms/cm)	Test Method

Hardness

Shore A Hardness	90 to 95
Elongation (%)	39

Other Properties

Specific Gravity	1.468	Test Method
Coefficient of Thermal Expansion (CTE)	11.8e-5 (in./ in/°C)

Business Information

Shelf Life Details	CONATHANE® EN-2551, Part A and Part B, should be stored at temperatures of 65-85°F in tightly closed containers. If containers are opened and the contents only partially used, the container should be flushed with dry nitrogen (CONAP® Dri-Purge) or dry air before being resealed.;The shelf life of EN-2551, Part A and Part B, is 18 months from date of manufacture, in the original unopened containers.
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-2551

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Comparable Materials for Elantas (Altana) Conathane EN-2551

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Spec Engine^® Results
- Conathane EN-2552(Elantas (Altana))
  A filled two-component urethane system designed for use as a potting and encapsulating material for electronic components where critical thermal cycling characteristics are a factor.
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