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Cotronics Duralco™ 4525 Electrically Resistant, Room Temperature Curing Epoxy

Category Polymer , Thermoset , Epoxy
Manufacturer Cotronics
Trade Name Duralco™
Port Ningbo port,China
Trade Terms FOB, CFR, CIF
Payment Terms L/C, T/T, Western Union
Download PDF Cotronics Duralco™ 4525 Electrically Resistant, Room Temperature Curing Epoxy.pdf
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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.
Physical Properties Metric English Comments
Density 1.90 g/cc
0.0686 lb/in³
Moisture Absorption at Equilibrium 0.050 %
0.050 %
Viscosity 25000 cP
25000 cP
Mechanical Properties Metric English Comments
Hardness, Shore D 80
80
Tensile Strength, Ultimate 68.9 MPa
10000 psi
Elongation at Break 2.0 %
2.0 %
Thermal Properties Metric English Comments
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-K
13.0 BTU-in/hr-ft²-°F
Maximum Service Temperature, Air 260 °C
500 °F
Shrinkage 0.20 %
0.20 %
Electrical Properties Metric English Comments
Volume Resistivity 1.00e+15 ohm-cm
1.00e+15 ohm-cm
Dielectric Strength 17.7 kV/mm
450 kV/in
Processing Properties Metric English Comments
Cure Time 30.0 min

@Temperature 121 °C
0.500 hour

@Temperature 250 °F
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