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Elmet Technologies

Resinlab® UR3005 Clear Two Part Urethane Elastomer
Categories: Polymer; Adhesive; Thermoset; Polyurethane, TS; Thermoset Polyurethane, Adhesive; Thermoset Polyurethane, Elastomer, Unreinforced; Rubber or Thermoset Elastomer (TSE)

Material Notes: Resinlab™ UR 3005 Clear is a two component, room temperature curing polybutadiene polyurethane casting and potting system. It is designed to cure completely at room temperature. UR 3005 Clear provides excellent environmental protection while having tenacious adhesion to various metals, plastics and other common assembly materials. UR 3005 Clear is an unfilled system that has a high degree of flexibility at temperatures as low as –40°C and provides for low stress on sensitive SMT components. It provides excellent moisture resistance and can withstand 125°C continuous operation. It also has a low viscosity, which facilitates flow and penetration into difficult areas. It is well suited to automated meter mix operations. UR 3005 Clear is a DOT non-hazardous material and contains no TDI, MOCA, or other reportable substances. Both components are moderately moisture sensitive and must be kept away from atmospheric moisture during storage. After opening a sealed container, thoroughly purge the remaining air space with dry inert gas such as nitrogen (or equivalent) before closing the container.

Information Provided by Resinlab L.L.C., an Ellsworth Adhesives Company.

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Physical PropertiesMetricEnglishComments
Specific Gravity 0.940 g/cc0.940 g/ccPart B
 0.960 g/cc0.960 g/ccMixed
 1.11 g/cc1.11 g/ccPart A
Viscosity 200 cP200 cPPart A (Isocyanate)
 4000 cP4000 cPMixed
 7000 cP7000 cPPart B (Polyol)
 
Mechanical PropertiesMetricEnglishComments
Hardness, Shore A  55
@Temperature 25.0 °C
55
@Temperature 77.0 °F
 75
@Temperature -40.0 °C
75
@Temperature -40.0 °F
Tensile Strength, Yield 1.03 MPa150 psi
Elongation at Break 150 %150 %
 
Electrical PropertiesMetricEnglishComments
Volume Resistivity 8.00e+12 ohm-cm8.00e+12 ohm-cm
Dielectric Constant 3.2
@Frequency 100 Hz,
Temperature 25.0 °C
3.2
@Frequency 100 Hz,
Temperature 77.0 °F
Dielectric Strength 17.3 kV/mm440 kV/in
 
Thermal PropertiesMetricEnglishComments
CTE, linear 120 µm/m-°C66.7 µin/in-°F
Thermal Conductivity 0.140 W/m-K0.972 BTU-in/hr-ft²-°F
Maximum Service Temperature, Air 125 °C257 °F
Minimum Service Temperature, Air -60.0 °C-76.0 °F
 
Optical PropertiesMetricEnglishComments
Transmission, Visible 90 %90 %clear; thickness not quantified
 
Processing PropertiesMetricEnglishComments
Pot Life 10 - 20 min10 - 20 minMass: 100g
 
Descriptive Properties
ColorClear
Demold Time (hours)4-8
Mix Ratio1:6Volume
 100:510Weight

Some of the values displayed above may have been converted from their original units and/or rounded in order to display the information in a consistent format. Users requiring more precise data for scientific or engineering calculations can click on the property value to see the original value as well as raw conversions to equivalent units. We advise that you only use the original value or one of its raw conversions in your calculations to minimize rounding error. We also ask that you refer to MatWeb's terms of use regarding this information. Click here to view all the property values for this datasheet as they were originally entered into MatWeb.

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