ER2220 Thermally Conductive Epoxy

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ER2220 is a flame retardant, thermally conductive, two part encapsulation compound based on epoxy technology. Designed to meet increasing demands for efficient thermal dissipation, ER2220 combines ease of processing with an enhanced thermal conductivity when compared to traditional thermally conductive encapsulants. Combined with flame retardance achieving UL94 V-0 level, ER2220 provides the ultimate in protection and performance for avast array of applications, including those in the rapidly expanding LED industry.

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Approvals RoHS Compliant (2015/863/EU): Yes
UL Approval: Meets UL94 V-0
Typical Properties
Liquid Properties: Base Material Epoxy
Density Part A – Resin (g/ml) 2.38
Density Part B – Hardener (g/ml) 0.93
Part A Viscosity (mPa s 23°C) 55000
Part B Viscosity (mPa s 23°C) 25
Mixed System Viscosity (mPa s 23°C) 15000
Mix Ratio (Weight) 20.81:1
Mix Ratio (Volume) 8.15:1
Usable Life (23°C) 120 mins
Gel Time (23°C) 3 hours
Cure Time (23 °C) 24 hours
Cure Time (60 °C) 4 hours
Cure Time (100 °C) 1 hour
Colour Part A – Resin Grey
Colour Part B – Hardener Black
Storage Conditions Dry Conditions: Above 15ºC, Below 35ºC
Shelf Life 24 Months (bulk) 18 months (resin pack)
Exotherm
(Measured on 100ml sample; cylinder of diameter 49.4mm @ 23ºC) < 35ºC
Shrinkage < 1%

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