ER2074 Thermally Conductive, Flame Retardant Epoxy Resin

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ER2074 is a flame retardant system two component epoxy resin with UL94 V-0 approval. The flame retardant technology used is halogen free leading to relatively low toxicity fumes and low smoke emission and the lack of abrasive fillers means that there is lower wear on dispensing machinery.

The resin is thermally conductive, with a conductivity value of 1.26W/m.K, while offering good chemical and water resistance.

Once cured, the white colour gives a good aesthetic finish, and the high thermal conductivity means it has been very effective as part of thermal management solutions in LED applications, for both external and internal lighting systems.


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) 2.25
Density Part B – Hardener (g/ml) 0.94
Part A Viscosity (mPa s 23°C) 200000
Part B Viscosity (mPa s 23°C) 58
Mixed System Viscosity (mPa s 23°C) 16700
Mix Ratio (Weight) 17.31:1
Mix Ratio (Volume) 7.23:1
Usable Life (20°C) 90 mins
Gel Time (23°C) 5 hours
Cure Time (23 °C) 24 hours
Cure Time (60 °C) 4 hours
Cure Time (100 °C) 1 hour
Colour Part A – Resin White
Colour Part B – Hardener Clear
Storage Conditions Dry Conditions: Above 20ºC, Below 30ºC
Shelf Life 24 Months (bulk) 18 months (resin pack)
(Measured on 100ml sample in a cylinder of diameter 49.4mm @ 23ºC) < 35ºC
Shrinkage < 1%

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