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Metal adhesives

Master Bond EP21TDCNFL Two Component Nickel Conductive Epoxy Adhesive
Categories: Polymer; Adhesive; Thermoset; Epoxy; Epoxy, Electrically Conductive

Material Notes: Master Bond Polymer System EP21TDCNFL is a two component, nickel filled, electrically conductive system for high performance bonding and sealing formulated to cure at room temperature or more rapidly at elevated temperatures. Its most noteworthy properties are its high flexibility and elongation. Its exceptional flexibility makes EP21TDCNFL particularly useful in bonding dissimilar substrates that are being thermally cycled and shocked. Additionally, its high flexibility combined with its inherently low shrinkage enables the cured system to exert very little mechanical stress on sensitive components and substrates.

Vendors: Master Bond is a leading manufacturer of adhesives, sealants, coatings and potting compounds. Master Bond’s vast product line consists of over 3,000 epoxy, polyurethane, silicone, cyanoacrylate and latex adhesives that vary in viscosity, cure speed, strength, chemical resistance, electrical properties, etc. Our custom adhesives offer design flexibility and provide excellent bonding performance. Visit www.masterbond.com.

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Mechanical PropertiesMetricEnglishComments
Elongation at Break >= 50 %>= 50 %
Adhesive Bond Strength >= 5.52 MPa>= 800 psishear, Al/Al, after 30 days water immersion
 >= 5.86 MPa>= 850 psishear, Al/Al
Peel Strength >= 3.51 kN/m>= 20.0 pli
 
Electrical PropertiesMetricEnglishComments
Volume Resistivity 5.0 - 10 ohm-cm5.0 - 10 ohm-cm
 
Thermal PropertiesMetricEnglishComments
Thermal Conductivity 1.44 W/m-K10.0 BTU-in/hr-ft²-°F
Maximum Service Temperature, Air 121 °C250 °F
Minimum Service Temperature, Air -269 °C-452 °F
 
Processing PropertiesMetricEnglishComments
Cure Time 1080 - 1440 min
@Temperature 23.9 °C
18.0 - 24.0 hour
@Temperature 75.0 °F
85% maximum strength developed within
Pot Life 60 - 75 min60 - 75 min200 gram mass
 75 - 90 min75 - 90 min100 gram mass
Shelf Life 3.00 - 6.00 Month
@Temperature 23.9 °C
3.00 - 6.00 Month
@Temperature 75.0 °F
in unopened containers
 
Descriptive Properties
Mixing Ratio (A to B)1/1
Viscositythixotropic

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PMASTB237 / 132834

Metal adhesives

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