UR5547 Black Polyurethane Resin

In Stock

UR5547 black Polyurethane potting and encapsulation resin is a semi-rigid compound ideally suited to electronics with small or delicate components, as the cured resin exhibits very little stress on components, even when thermally cycled.

Its adhesion to a wide range of substrates and low water absorption make it a great choice for cable joining applications. While it is also a thermally conductive resin, dissipating heat away from delicate components making it a suitable in a wide range of electronic applications .


Approvals RoHS Compliant (2015/863/EU): Yes
UL Approval: Meets UL94 V-0
Typical Properties
Liquid Properties: Base Material Polyurethane
Density Part A – Resin (g/ml) 1.69
Density Part B – Hardener (g/ml) 1.23
Part A Viscosity (mPa s @ 23ºC) 24000
Part B Viscosity (mPa s @ 23ºC) 230
Mixed System Viscosity (mPa s @ 23ºC) 4000
Mix Ratio (Weight) 5.52:1
Mix Ratio (Volume) 4.01:1
Usable Life (20°C) 20 mins
Gel Time (23°C) 50 mins
Cure Time (23 °C) 24 hours
Cure Time (60 °C) 3 hours
Colour Part A – Resin Black
Colour Part B – Hardener Brown
Storage Conditions Dry Conditions: Above 15ºC, Below 30ºC
Shelf Life 12 months
(Measured on 100ml sample in a cylinder of diameter 49.4mm @ 23ºC) < 35ºC
Shrinkage < 1%

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