ER2221 Thermally Conductive Epoxy

In Stock

ER2221 resin has been formulated as high temperature resistant and thermally conductive potting compound which retains excellent characteristics throughout thermal cycling. ER2221 is coloured black, while ER2222 is a red version, otherwise the cured resins do not differ in their physical properties. Both exhibit excellent thermal resistance up to an operating temperature of 150°C and have an enhanced thermal conductivity value in comparison to other encapsulants of 1.20W/m.K.


Approvals RoHS Compliant (2015/863/EU): Yes
UL Approval: UL94 V-0 File #E100107
Typical Properties
Liquid Properties: Base Material Epoxy
Density Part A – Resin (g/ml) 2.00
Density Part B – Hardener (g/ml) 1.01
Part A Viscosity (mPa s 23°C) 8000
Part B Viscosity (mPa s 23°C) 250
Mixed System Viscosity (mPa s 23°C) 6000
Mix Ratio (Weight) 13.91:1
Mix Ratio (Volume) 7:1
Usable Life (23°C) 60 mins
Gel Time (23°C) 6 hours
Cure Time (23 °C) 24 hours
Cure Time (60 °C) 2 hours
Cure Time (100 °C) 1 hour
Colour Part A – Resin Black
Colour Part B – Hardener Brown
Storage Conditions Dry Conditions: Above 15ºC, Below 35ºC
Shelf Life 12 months
Shrinkage < 1%

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