Adhesives, Epoxies & Sealers

UR5604 is a two-part, high performance polyurethane especially formulated for potting and encapsulating. It is ideal as a general purpose resin also offering UL approval.

General purpose polyurethane resin; ideal for a wide variety of challenging environments
UL approved to UL94 V-0; high level of flame retardancy
Low mixed system viscosity; ensures quick and efficient potting processes
Excellent adhesion to a wide variety of substrates
RoHS Compliant (2015/863/EU): Yes
UL Approval: UL94 V-0 (File: E100107)

Storage Conditions:
Dry Conditions: Above 15ºC, Below 35ºC
Shelf Life: 12 months
Exotherm (Measured on 100ml sample in a cylinder of diameter 49.4mm @ 23ºC): < 35ºC
Shrinkage < 1%

Package Size:
250grams

Base Material:
Polyurethane

Density Part A - Resin (g/ml):
1.62

Density Part B - Hardener (g/ml):
1.21

Part A Viscosity (mPa s @ 23ºC):
20000

Part B Viscosity (mPa s @ 23ºC):
50

Mixed System Viscosity (mPa s @ 23ºC):
2000

Mix Ratio (Weight):
5.21:1

Mix Ratio (Volume):
3.88:1

Usable Life (20°C):
40 mins

Gel Time (23°C):
90 mins

Cure Time (23 °C):
24 hours

Cure Time (60 °C):
3 hours

Colour Part A - Resin:
Black

Colour Part B - Hardener:
Brown

Cured System:

Thermal Conductivity (W/m.K):
0.45

Cured Density (g/ml):
1.54

Temperature Range (°C):
-40 to +130

Max Temperature Range (Short Term (°C)/30 mins) (Application and Geometry Dependent):
+155

Weight Loss after 600 Hours @ 155ºC:
7%

Dielectric Strength (kV/mm):
18

Volume Resistivity (ohm-cm):
10-14

Shore Hardness:
(@ 23ºC): A75/D25
(@ -77ºC): D80
(@ -60ºC): D80

Hardness after 600 Hours @ 155ºC:
A92

Colour (Mixed System):
Black

Flame Retardancy:
Yes

Loss Tangent @ 50 Hz:
0.015

Permittivity @ 50 Hz:
4.90

Comparative Tracking Index:
>600 Volts

Water Absorption (9.7mm thick disk, 51mm diameter) 10 days @ 20ºC / 1 hour @ 100ºC:
<0.5% / <1%

Elongation At Break:
Not Measured

ELEUR5604RP250GE - TDS