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Master Bond EP42HT-2AO-1 Two Part, Cryogenically Serviceable Epoxy

Category Polymer , Adhesive , Thermoset , Epoxy , Epoxy Adhesive
Manufacturer Master Bond Inc.
Trade Name
Port Shanghai port,China
Trade Terms FOB, CFR, CIF
Payment Terms L/C, T/T, Western Union
Download PDF Master Bond EP42HT-2AO-1 Two Part, Cryogenically Serviceable Epoxy.pdf
Price EMAIL US    sales@lookpolymers.com
  Online Service   lookpolymers   27660005
Material Notes:
Description: Master Bond EP42HT-2AO-1 Black is a room temperature curable, two component epoxy adhesive, sealant, coating and casting material that meets NASA low outgassing specifications. It features high temperature resistance and outstanding chemical resistance and is widely used in a variety of potting and encapsulation applications where thermal conductivity is needed. Aside from being a superior adhesive, sealant and coating, EP42HT-2AO-1 Black is castable to thicknesses exceeding 2-3 inches. EP42HT-2AO-1 Black cures readily at ambient temperatures or more quickly at elevated temperatures even in the presence of moisture. The cured epoxy compound is resistant to various types of chemicals such as inorganic and organic acids, alkalis, many organic solvents, aromatic hydrocarbons, etc. EP42HT-2AO-1 Black is an excellent electrical insulator. Especially noteworthy is its cryogenic serviceability from 4K up to +400°F combined with being relatively impervious to intermittent exposures to steam. Aside from its widespread use in the electronics industry, EP42HT-2AO-1 Black is also used in medical, fiber-optic, optical, as well as OEM type applications. While the mixed material is black in color, Part A is black and Part B is brown.Product Advantages:Non-critical 100:40 mix ratio by weightConvenient cure schedules at both ambient and elevated temperaturesExcellent chemical resistance to acids, alkalis and many solventsCastable to thicknesses exceeding 2-3 inchesExcellent flow propertiesKey Features and Benefits:Passes NASA low outgassing specificationsOutstanding thermal conductivity and electrical insulation propertiesSuperior thermal stability with serviceability up to +400°FSuitable for cryogenic applications at temperatures down to 4K
Physical Properties Metric English Comments
Viscosity 200 - 1000 cP
200 - 1000 cP
Part B
50000 - 120000 cP
50000 - 120000 cP
Part A
Mechanical Properties Metric English Comments
Hardness, Shore D >= 80
>= 80
Tensile Strength at Break >= 51.7 MPa
>= 7500 psi
Elongation at Break >= 2.0 %
>= 2.0 %
Tensile Modulus >= 3.45 GPa
>= 500 ksi
Shear Strength >= 8.27 MPa
>= 1200 psi
Tensile lap, Al to Al
Thermal Properties Metric English Comments
CTE, linear 25.0 - 30.0 µm/m-°C
13.9 - 16.7 µin/in-°F
Thermal Conductivity 1.30 - 1.44 W/m-K
9.00 - 10.0 BTU-in/hr-ft²-°F
Maximum Service Temperature, Air 204 °C
400 °F
Minimum Service Temperature, Air -168 °C
-270 °F
Electrical Properties Metric English Comments
Volume Resistivity >= 1.00e+12 ohm-cm
>= 1.00e+12 ohm-cm
Processing Properties Metric English Comments
Cure Time 120 - 180 min

@Temperature 93.3 °C
2.00 - 3.00 hour

@Temperature 200 °F
1440 - 4320 min

@Temperature 23.9 °C
24.0 - 72.0 hour

@Temperature 75.0 °F
Shelf Life 6.00 Month

@Temperature 23.9 °C
6.00 Month

@Temperature 75.0 °F
in unopened container
Descriptive Properties Value Comments
Mixing Ratio (A to B) 100:40
by weight
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