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Chemically Resistant adhesives

Cotronics Duralco™ 4525 Electrically Resistant, Room Temperature Curing Epoxy
Categories: Polymer; Thermoset; Epoxy

Material Notes: High bond strength, high thermal stability, low moisture absorption, low shrinkage and excellent chemical, electrical, and radiation resistance.

Chemical Resistance: resistant to hydrochloric, phosphoric, sulfuric and nitric acids.

Applications: high performance bonding, potting, sealing, repairs, castings and forms protective coatings in electronics, appliances, motors, instrumentation, etc. 4525 has been used to seal thermocouples, electric heaters, and critical electronic components for use in high humidity environments. It has also been used to repair glass lined tanks that hold acidic and caustic solutions.

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Physical PropertiesMetricEnglishComments
Density 1.90 g/cc0.0686 lb/in³
Moisture Absorption at Equilibrium 0.050 %0.050 %
Viscosity 25000 cP25000 cP
 
Mechanical PropertiesMetricEnglishComments
Hardness, Shore D 8080
Tensile Strength, Ultimate 68.9 MPa10000 psi
Elongation at Break 2.0 %2.0 %
 
Electrical PropertiesMetricEnglishComments
Volume Resistivity 1.00e+15 ohm-cm1.00e+15 ohm-cm
Dielectric Strength 17.7 kV/mm450 kV/in
 
Thermal PropertiesMetricEnglishComments
CTE, linear 64.0 µm/m-°C
@Temperature 20.0 °C
35.6 µin/in-°F
@Temperature 68.0 °F
Thermal Conductivity 1.87 W/m-K13.0 BTU-in/hr-ft²-°F
Maximum Service Temperature, Air 260 °C500 °F
Shrinkage 0.20 %0.20 %
 
Processing PropertiesMetricEnglishComments
Cure Time 30.0 min
@Temperature 121 °C
0.500 hour
@Temperature 250 °F

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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PCOTR0380 / 29063

Chemically Resistant adhesives

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